Humanure Happens

Simparch's dry toilet located in Wendover Utah

From the 1806 edition of the Old Farmer's Almanac,

"Four loads of earth mixed with one load of privy soil, will be equal to five loads of barnyard dung. Let it lie for several months and occasionally turn it over with a shovel, and it will be of use as manure."

The editors of the Old Farmer's Almanac 2010,where I found that quote, deemed it necessary to tack on a disclaimer, "Human waste, as well as that of dogs and cats, is not recommended as manure for fertilizer today." But after fielding a couple of calls from journalists interested in the subject of composting human waste, I'm thinking that humanure is about to get serious consideration again. After all, why waste a good source of nitrogen in the middle of a recession?

Simparch's striking Clean Livin' compound

All this is a long winded intro to get you all to check out two fine examples of dry sawdust-based toilets. First is the one at the top of this post, designed by a collective known as Simparch, and located on the historic Wendover Air Force Base on the Nevada-Utah border. The facilities are simple: a toilet seat sits atop a 55 gallon drum. Each time you use it you add some sawdust. After composting, you've got rich soil. But what makes the Simparch crapper so amazing is the view. From the throne you look out on a landscape so flat you can see the curvature of the earth, punctuated by munitions bunkers dating back to World War II. The toilet facilities are part of a self-sufficient living project they call "Clean Livin'".

It ain't the moon but close: the view from the Simparch Clean Livin' crapper

The second example, nicknamed the "crap-cedral", is featured on Lloyd Kahn's amazing blog. Built by someone with the improbable name of Birchbarkbobananda, the crap-cedral features intricate woodwork and an equally stunning location. What both of these dry toilet facilities prove is the siting possibilities that can happen when you can put your crapper wherever you damn well please. No sewer line means you can have a nice view!

Rubber Sidewalks Rescue Trees

Homegrown Neighbor here:

I love trees and all of the things they do for us. They shade us, feed us, house us. Trees are something we just need more of here in Southern California.

I used to work at an urban forestry non-profit, TreePeople. So I am familiar with the challenges of the tree/sidewalk interface. I have fielded calls from people frantically trying to save trees that are being ripped out because they are lifting the sidewalk. I have also received calls from people eager to remove trees for the same reason. Sadly, I have also heard from people that would call just to complain about a tree being messy and littering their sidewalk or driveway. My personal take on that is it isn't the tree that should be removed- it is the concrete. Leaves falling off of trees is a good thing. Leaves make glorious mulch or compost and that hardscape is just in the way of some healthy soil.

Nonetheless, in a city there are sidewalks. There are also commonly trees near sidewalks. The wrong species of tree or a tree that is too large for the available space, can lead to problems. Cracked or raised sidewalks can be hazardous or inaccessible for the disabled, people with strollers, cyclists, skate boarders and those of us who are just generally clumsy. Rubber tiles in place of concrete can be a solution. They allow the tree roots to grow yet they are flexible. They conform to the contours of the roots. This eliminates gaps and provides an even surface. They are safer than ordinary concrete and allow the tree to thrive as well. I have heard of these rubber tiles before but I had never seen them in person until just a few days ago. I came across this tree and the rubber sidewalk in a leafy, pretty suburb along a major boulevard with a lot of foot traffic. Viva el arbol!

More on this material via the Charlotte Observer,"When the rubber meets the sidewalk (at $80 a foot)".

The company that makes them is called, not surprisingly, Rubber Sidewalks.

Apron Contest Winner

Homegrown Neighbor here:

We have a winner for our apron giveaway. I received a lot of great entries. It was fun to hear what each of you would do in an apron. I'm happy to say that we have a lot of interesting, witty and crafty readers. I even received some international entries. I wish we could give you all aprons.

But Katie Presley made me laugh, so I had to choose her as our winner. Lots of people cook and craft, but Katie cooks and crafts with an irreverent and sassy sense of humor. My kind of girl.

Her entry was rather long, so I'll just give you the highlights. She said she would first roll around on the floor and wrap herself up in the apron like a "sexy burrito."

She cooks, of course. She even makes her own recipe books of tasty treats. In addition to cooking she notes, "I am also in printmaking, so this apron can come with me to my art classes to make the bindings for the recipe book for the recipes that Apron and I were JUST working on! It is an artistic, apron-centric circle of life."

Congrats, Katie.

I've got a batch on jam on the stove, so I'd better finish this post and get to canning. I'm putting on my apron now....the jam is peaches with ginger, zero white sugar, a little maple syrup and unripe apples pieces for pectin. I'll let you know how it turns out.

Another Panel Solar Cooker

Poyourow demoing her solar cooker design

There's no one size fits all solution when it comes to the world of solar panel cookers. All have their advantages and disadvantages. I got an email from author Joanne Poyourow, leader of the amazing Los Angeles Environmental Change Makers, with a simple and effective design she came up with.

Pouyourow's cooker comes together much faster than the CooKit design that I blogged about earlier this week. There's hardly any cuts to make and no glue needed. Her design makes use of a car sunshade which can be picked up cheap at your local 99¢ store. The sunshade is more durable than aluminum foil glued to cardboard. While you can also fashion a sunshade alone into a solar panel cooker, I've found that they don't stand up well in even a moderate wind.

Plans for Poyourow's cooker can be found here (pdf).

She also has a list of solar cooking resources here.

And yes, for most North Americans this is the wrong time of year to be blogging on this topic since, as the sun gets lower in the horizon, solar panel cooking season is almost over. But I've got a backlog of summer R&D to share. Stay tuned for the ups and downs of our summer gardening, a bike accident story and a taste test of beer made with our homegrown hops . . .

CooKit Solar Panel Cooker

I've been experimenting with a nice panel solar cooker for the past week and, so far, the results are impressive. Called the CooKit, it was developed in 1994 by a group of engineers and solar cooking enthusiasts associated with Solar Cookers International and based on a design by Roger Bernard.

It has a couple of nice features:

• It produces ample heat to cook rice and simple casseroles.
  
• When you fold it up it takes up no more space than an album (do I have to explain what an album is for the youngsters out there?).
  
• A flat area on the base of the CooKit makes weighting it down with rocks easy. This is really important in windy places.
  
• All you need to build it is a knife, cardboard, aluminum foil and glue.

As with all panel solar cookers you need an black enamelware pot wrapped in a turkey roasting bag to hold in the heat. You ain't gonna deep fry things with a panel cooker, but they are great for slow-cooked crock pot type dishes. The only disadvantage to this design is having to cut curves, but with a sharp knife it wasn't difficult. The other improvement would be a stand to lift the pot off the aluminum foil for more efficiency and to keep the cooker un-scuffed. When panel cooker season returns to LA in the springtime, you can bet I'll be making a lot of rice with this thing.

Detailed instructions for how to build a CooKit can be found here.

Also, Mrs. Homegrown and I are writing a new book and we'd like to include some plans for solar cookers (any kind). If you've got a favorite DIY model, leave a comment with a link.

Another view with curious Doberman in the foreground:

Digital Farming- What's The Deal?

Homegrown Neighbor here:

So here in the world of urban homesteading things can get pretty busy. We can become so preoccupied with work, chickens, vegetable gardening, cooking, cleaning, blogging duties and email that we can miss some of the things going on in the world. I do like to occasionally check in with the world at large by reading the newspaper. I just read an article that I have to comment on.

A recent New York Times article titled, 'To Harvest Squash, Click Here,' introduced me to the world on online farming. Apparently people spend a lot of time "farming" on line. Twenty two million a day in fact, according to the article. There are several farming games on Facebook, Farmville being the most popular. You can get seeds to plant, watch your crops grow and then harvest them. Some people are so addicted that they are eschewing real life responsibilities and social obligations to harvest their virtual soybeans.

It is even suggested that the popularity of these farming games is indicative of a collective yearning for a more pastoral life. I'm not sure I get this. I spend all day outside in the dirt making things grow. At sundown, I lock up the chickens. Then I harvest something to make into dinner or on a special evening, I'll make a big batch of jam or sauce and spend hours canning. I'd rather spend as little time online as possible.

I can't wrap my head around how a video game can in any way replicate the experience of farming. I may be an urban dweller, but I get my satisfaction by getting real, not virtual, dirt under my fingernails. Can any one explain this trend to a clueless non-gamer like me?

Handmade, Homegrown Apron Contest

Homegrown Evolution reader Pam Neuendorf has offered fellow readers a chance to win one of her handmade aprons. She sells her wares through Etsy, a website where crafters and artisans can sell their goods. You can see more of her aprons here. She has an ordinary day job but is a maven of craft by night. Pam says, "I love making aprons. They make me happy." I am a big fan of aprons. They are useful for cooking, gardening or just looking darn cute. I am also a big supporter of all things handmade. So I love this handcrafted apron.

I also hope our readers will appreciate this reminiscence of mine. -When I was in college I lived in a house with a lot of people. There were about 50 of us and we took turns cooking and cleaning. Every Friday we celebrated 'Naked Pizza Fridays.' Only the men would cook on Fridays. They would wear aprons and nothing else. Just the apron. Oh, the good old college days. Perhaps this is why I see aprons as slightly subversive and rather sexy.

Dear readers, if you would like to have this apron, send me an email and tell me what activity you would use your apron for. I want to hear about your hobbies and how this apron would help your creative energies. I will pick a winner by Sunday night. Send your entries to fullcirclegardening@gmail.com.

Quince: the "Poster Child of Slowness"

Oops--I think they mean "quince"

A year ago I planted a "Karp's Sweet Quince" tree from Raintree Nursery and blogged about it, saying that I'd like to hear from fruit expert David Karp for whom the tree is named. Karp called me a few weeks ago to say that he was working on a quince article for the LA Times, "There's a new taste for quince". In the article Karp discusses varieties that can be eaten raw as well as how our Southern California climate is an ideal place to grow quince. Karp asked how my tree is doing and I had to say that it's not doing all that well. In a fit of mad, rare fruit tree planting fever, I put it in a crappy location, in bad soil too close to a large prickly pear cactus that is probably competing with it. We'll hope it does better in the next season.

Filling in for my lack of backyard quince, Homegrown Neighbor was nice enough to pop by with some she bought local Asian market. The label must have lost something in translation, but refers to a variety called "Pineapple quince". Karp points out in his article that this is the most prevalent commercial variety. When picked fresh it could conceivably be eaten raw, though the commercial stuff ain't fresh.

Quince is indeed, as one of Karp's sources notes, "the poster child of slowness." I tried to make some jelly with it and greatly underestimated how long it takes to cook. The jelly did not set, so I'll have to try again. But the fruit did fill the entire house with a heavenly scent. Definitely a fruit worth slowing down for.

A Warning About Straw

Claude Monet used straw (or is that hay?) for art. We use straw to catch chicken droppings!

Straw is a very inexpensive and useful material for composting, mulching and animal bedding (we use it for all of these purposes). If you use it for mulch you'll probably get some seeds that will germinate, but I've never found it to be a big problem in a small vegetable garden. I get my straw from the feed store, but you can often get it for free from yuppies on Craigslist who have bought it to give their parties the Hee Haw ambiance we enjoy 24/7 at the Homgrown Evolution compound. If you buy it from the feed store remember to ask for straw, not hay. Hay is green and a lot more expensive. You feed hay to your horses.

But one warning from my friend, permaculturalist David Kahn. It's tempting to pick up bales that stores have used after Halloween, but make sure they weren't treated with fire retardant. Fire retardant has some nasty chemicals in it you don't want in your garden. When in doubt, just go to the feed store--straw it ain't expensive!

Addendum 10/27/09: Reader Polyparadigm raised another potential issue with using straw in your garden or compost pile: halogenated pesticide/herbacide residues. Clopyralid is an example--while banned for use in lawns in many places it's still allowed on hay and grain crops . All the more reason to grow your own mulch and carbon materials if you can--don't throw out those fall leaves! Here's what Polyparadigm says:

"I'm glad I read through to the end! I was thinking this would be a warning about clopyralid and its close cousins. Which bears some mention: Halogenated pesticides aren't broken down by any but a few soil organisms.

Clopyralid and aminopyralid mimic the hormones in broad-leaf plants, causing them to grow un-evenly and die from wrong-facing, crinkled leaves and other symptoms. Grasses are un-affected, so fields of grain and lawns have been sprayed with this sort of chemical, as a cheap way of keeping broad-leaf competitors at bay for a few years.

These chemicals have a half-life of 11 months in hot compost, and are often applied at such high rates that certain plants won't grow in garden soil dressed with finished compost from a mix of sources, if one of those sources is a treated lawn or field.

A quick bioassay will test for this in straw: peas sprouting from soil mixed with that straw will look deformed if the field that grew the straw was treated. Browns of a similar texture from a source you know to be clean should probably be used for a control group."

Stirred, Not Shaken

"Matter is never without spirit and spirit is never without matter." - Rudolf Steiner

This past weekend I had the good fortune of attending an amazing workshop in biodynamic gardening taught by master gardener Dory Rindge. For those of you unfamiliar with biodynamics, it's a system of agriculture based on the work of early 20th century philosopher and mystic Rudolf Steiner.

In the 1920s, at just the point when chemical fertilizers where catching on, Steiner proposed a radical return to organic farming. Biodynamic agriculture combines common sense practices such as composting with strange esoteric rituals. The oddest aspect of biodynamics involves the "preparations", a specific set of substances made of manure, silica and herbs that are buried in cow horns, bladders and skulls. After a few months they are unearthed, ritually stirred and applied to soil and compost piles. Steiner has the biodynamic farmer spray these preparations on soil, plants and compost piles to act as a kind of homeopathy for the land.

While we did not make our own preparations in class (it's complicated!) we did a ritual stirring with pre-made preparations in buckets of water. Using sticks we created vortexes in the buckets, alternating in clockwise and counterclockwise motions. We then divided the mixture and rushed home to spread it on our gardens.


I was excited and inspired by the class, a feeling which deepened when manure filed horns appeared to me in a dream. In my dream I interpreted the symbolism of the horns--that they represented a higher world unified with the earth by being buried and containing manure. It's a symbol that recalls the ouroboros, the snake chasing it's own tail, representing the cycles of nature, combined with the "as above, so below" gesture the magician in the tarot deck is making below. All this makes more sense if you compost!

Now I'm a big fan of the scientific method (yea soil tests!) but I'm increasingly dissatisfied with our modern culture's overly materialistic world view. As the subtitle of this blog hints at, "cultural alchemy", I'm interested in symbolism. But I agree with our our instrutor Rindge that it's important not to get dogmatic about this stuff.

And I could care less about the science of the preparations. If you are, here's a study that says its hokum and here's another one that says they work (pdf). To focus on the biochemistry of the preparations seems to me to be asking the wrong questions. What I like most about biodynamics is its sense of intention. It's an intention that ties us to the land, to the elemental spirits of plants and animals that were tangible to our ancestors. We could all use ritual that ties us to nature and I look forward to stirring preparations and perhaps making them with a few close friends. In fact, I'm much more excited about making preparations than it buying a package through the mail. Steiner's set of herbs all grow well here and many of them I have already. But a cow is kinda hard to come by in Los Angeles. While it may be heresy to some, perhaps we'll have to come up with some modifications to the rituals that make sense in this particular place and time.

More on biodynamics, specifically planting by the cycles of the moon and planets, when Mr. Homegrown gets back from San Antonio next week.

The modern woman-things to put in your apron pocket

Aprons are so cute and oh so functional. I'm often out and about in the yard and around the homestead and I find my apron a very useful accessory. An apron adds a flirty, feminine touch when worn over jeans and is a nice layer of protection for a dress. I tend to get very dirty and need a lot of pockets, so an apron is handy indeed. Whether I am at the farmer's market, pulling weeds in the backyard or at the chicken coop, here are the top things you are likely to find in the pocket of my apron:

5. Money- small bills for the farmer's market.

4. Seeds. I tend to collect seeds in my pockets.

3. My keys.

2. An egg. I certainly can't put an egg in my jeans pocket.

1. My iphone. Very convenient place for this indispensable item.

Gathering of Community Gardeners

This weekend is the third annual Gathering of the Gardens in Los Angeles. While the event is put together by the non-profit L.A. Community Garden Council, it is open to all interested parties. You don't have to be a member of a community garden to attend, just interested in community building and gardening.

There will be workshops and discussions on topics such as vegetable gardening, composting, native plants, beekeeping and even a workshop on urban chickens co-taught by yours truly, Homegrown Neighbor. The entire day Saturday is free, but a $10 donation is requested to cover operating expenses. I recommend you go and pay them $100, because that is what this event is worth. You'll meet the coolest people in L.A., learn about gardening, eat great food and contribute to a great cause. The tour of community gardens on Sunday is already booked up so you'll just have to make the most of Saturday.

When I lived in an apartment after college I had a plot in a local community garden. Being a part of that garden was perhaps the only thing that kept me sane during that time. I had a series of mind numbing jobs followed by periods of depressing unemployment. Having access to that little plot of land allowed me to meet members of my community and to get my hands in the soil. I harvested some fantastic artichokes, kale, onions and chard from that plot.

I have a lot of love for community gardens so I am thrilled to be a part of this event. The event takes place at Farmlab, 1745 N. Spring St., L.A. 90012. It is just slightly North of Chinatown, near Downtown. It runs from 8-4 on Saturday and you won't want to miss the breakfast provided by Homegirl Cafe.

For more information visit www.lagardencouncil.org.

Let's Get Biointensive

I picked up a handy tip on plant spacing from John Jeavons' book How to Grow More Vegetables. Jeavons dislikes rows and instead uses the triangular spacing of the French biointensive method. You can view a nice diagram of biointensive spacing on the LandShare Colorado website. And see some images of the way Jeavons' spaces his garden on This Girl's Gone Green. Triangular plantings squeeze more veggies into small spaces. The tight spacing, with leaves allowed to just touch each other when the plant is mature, also creates a living mulch which shades the soil and saves water.

Jeavons suggests cutting out some triangles in different sizes to assist in planting. Using scrap wood, I made triangles in 3, 4, 6, 8, 12, and 15-inch sizes, taking the spacing suggestions in Jeavons' charts for the seeds I had planted in flats. When it came time to transplant the seedlings I used the triangles to create hexagonal blocks of tightly spaced veggies. Cutting a notch in the corners of the triangles would be a slight improvement and allow for easier planting.


I could end this post leaving you all to admire my pretty little seedlings planted in neat biointensive rows. But here at Homegrown Evolution we believe in telling the truth. Growing vegetables has its frustrations. The day after I planted our winter vegetable garden (we have two growing seasons here in Southern California), we had a freak October heatwave, causing a panicked run to the nursery to buy some shade cloth. This was followed by one of Mr. Homegrown's notorious gardening meltdowns, dreaded by the very patient Mrs. Homegrown. We'll keep our fingers crossed that I got that shade cloth up in time.

Favorite Plants- New Zealand Spinach

New Zealand Spinach, Tetragonia tetragonioides.

When the lettuce wilts in the heat, caterpillars and aphids destroy the kale and your swiss chard is plagued by powdery mildew.... there is New Zealand spinach.

It is not a true spinach but is in a genus all its own. The leaves are triangular in shape, and very succulent. They grow on long, rambling stalks. The seeds are triangular as well and the plant will reseed if you let it. It tends to spread and grow low to the ground. It can be used as a living mulch since it so effectively covers the soil in a vegetable bed.

This green keeps on growing and seems to be unaffected by the bugs and problems that affect other greens. I have seen it growing wild among the rocks right along the ocean, so it can handle saline soils. This is a very robust plant. It tolerates drought, bugs, salt and poor soil. And it does much better in heat than true spinach which just bolts in Southern California's heat. New Zealand spinach can be grown in the summer when other greens may not grow so well.

My front garden be is pretty much all New Zealand spinach now. The drip watering system broke and most of the plants withered and died or were mercilessly attacked by bugs. But this plant kept on going strong.

I have been growing it for many years and find it a reliable plant. In The Complete Book of Edible Landscaping, Rosalind Creasy writes, "New Zealand spinach makes a marvelous temporary ground cover, is good in hanging baskets, and will cascade over the sides of planter boxes. Grow it on the patio so it will be close at hand to add to your morning scrambled eggs along with dill and cheese."

I have so much in my garden right now that I may do a big harvest and blanch, chop and freeze it for later use. I make a lot of green lasagnas with massive quantities of NZ spinach. I saute it with onions and garlic and put thick layers of spinach sandwiched between noodles and cheese.

When life gives you greens, you can't go wrong. I have heard that it is edible raw but I prefer it cooked.

Give it a try in your garden if you haven't already.

Chicken Coop Deconstructed

Homegrown Neighbor here. I volunteer at a local high school with an agricultural program. Remember that we are in the middle of Los Angeles and agriculture is largely a thing of the past here.

This school is one of the last public high schools in the area to have space devoted to an orchard, garden and farm. Right now it is home to a goat, a Vietnamese pot bellied pig, dozens of rabbits and two hens. As can be expected, the program hasn't gotten the respect and resources it deserves in the last few years. Things look a little scraggly, the orchard is filled with weeds and most of the barns haven't been touched in thirty years, now housing only spiders.

This program is special of course because it allows city kids to have access to green space, get outside and get close to a pot bellied pig- all rare experiences around here.

My current project is rehabbing the old chicken coop. I brought in my friend Justin, curator of the local arts space Echo Curio and a fellow master gardener to help. He has the building and construction skills that I lack.

This week the students took off all of the old plywood, chain link and chicken wire.

The students loved destroying the old structure. They got to use crowbars and hammers after a little safety lesson. Dust and spiderwebs flew everywhere. They practically had to be dragged back to the classroom at the end of the period because they were having so much fun they didn't want to stop.The old chicken coop is now stripped down to the studs. As soon as we can get the supplies, we will start rebuilding. The students will get some real hands on construction lessons and get to build it themselves. Once the paint drys the school will be ready for a big flock of chickens. I think the coop could handle about 20.

Next we'll rehab the big barn and get mini goats and dwarf sheep. This is going to be a jewel of an urban farm and a great educational space!

Least Favorite Plant: Tree of Heaven

Detroit Tree of Heaven Woodshop's new ghetto palm farm. Photos from the Detroit Tree of Heaven Woodshop.

Riding on the Amtrak San Joaquin train two weeks ago I discovered a new metric: the economic health of a city can be judged by the size of its trees of heaven (aka Ailanthus altissima, aka "ghetto palm"). The higher the ghetto palms, the more likely a city is to be in the crapper.

Tree of heaven is a super weed much reviled by gardeners and landscapers for its unstoppable ability to grow in nearly every climate in the most inhospitable conditions. In a move that will raise a lot of horticultural hackles, the Detroit Tree of Heaven Woodshop has gone beyond the "if you've got lemons make lemonade" phase of their project and has deliberately planted a ghetto palm farm. From their press release:

"Detroit Tree of Heaven Woodshop has established its first Tree of Heaven Farm on a vacant Detroit city lot for future harvest. We planted seedlings in beds of car tires. The tires protect the young trees while they are growing but also determine their lifetime to a size when the trunks are suitable for processing. We assume this period of growth to be approx. 40 years. Within this timespan we will maintain the plantation and keep the lot free of any kind of real estate speculation or building activity. The plantation has been realized with the support of the SMART Museum of Art, University of Chicago and a documentation is on display in the current Heartland exhibition."

The Detroit Tree of Heaven Woodshop has turned sculptures and made furniture out of tree of heaven for a few years now. They've also come up with a stinky tree of heaven sauna:

"We have another small installation in the SMART Museums Heartland exhibition: A humidifier is installed in the museum lobby. The water tank of the device contains some pieces of Tree of Heaven wood (coll. Ghetto Palm). This is how the active substances get extracted in traditional Chinese medicine to cure a wide range of ailments from digestion problems, mental conditions, balding, to asthma and even cancer. In these tough economical times, a constant flow of steam will benefit all visitors with the spirit of this true Detroit resource."

Invasion biology becomes art. If you can't beat em' you might as well find a use for em'.

Kimchi Secrets Revealed

Kimchi champion Granny Choe at Krautfest 2009 - photo from Eating L.A.

The last time I tried to make the spicy Korean fermented cabbage dish known as kimchi it was such a disaster that Mrs. Homegrown exiled the batch to the back porch where it rotted for a good two months before we got around to sending it to the landfill. At Krautfest 2009, which we helped organize back in September, we had the great privilege of learning to make kimchi from kimchi entrepreneur Oghee "Granny" Choe. And thankfully, Pat over at Eating L.A. has put Granny Choe's recipe online for all to enjoy here. Having tasted Granny Choe's kimchi, I can tell you that it's not to be missed even for the kimchi-phobic.

You can order Granny Choe's kimchi online at grannychoe.com.

Granny Choe also has a nice recipe for a savory kimchi pancake here.

Here's some photos of Krautfest 2009 via Mark Frauenfelder.

How I Learned to Stop Worrying and Love the Grub

Why start the day with the Wall Street Journal when the real excitement is to be found in periodicals such as Backyard Poultry Magazine? While our broke nation can't afford missile shields or moon trips anymore, at least it's comforting to read in the pages of BPM that the citizens of Bonner Springs, Kansas can visit the brand new National Poultry Museum. This month's issue of BPM also has a fascinating article by Harvey Ussery, "Black Soldier Fly, White Magic" on raising black soldier fly (Hermetia illucens) grubs as poultry and fish feed.

"If we offer the grubs 100 pounds of food wastes, for example, they will reduce it to 5 pounds of residue usable as a superior soil amendment, in the process generating 10 and possibly up to 20 pounds of live grubs that can be fed to livestock; in addition to liquid effluent (how much depends on the moisture content of the feeding materials) which can be used to feed crops. Hey, wait a minute--what happened to the "wastes"? There is absolutely no waste remaining after this conversion--it has all been transformed into valuable resource."

To raise Hermetia illucens you put vegetable and fruit trimmings in a container with a small opening for the black soldier fly females to fly in and lay their eggs and a method for the grubs to climb out of the compost. You can also feed them small amounts of fish and meat but they can't digest cellulesic materials. A company called ESR International markets a black soldier fly growing system called the BioPod™ at www.thebiopod.com. A spiral ramp in the BioPod™ allows the grubs to scamper out of the feeding materials and launch themselves into a bucket. Each morning you empty a bucket full of grubs for your grateful chickens or fish, making sure to reserve a few to ensure future black soldier fly generations. Adult black soldier flies don't bite and are only interested in flying around looking for sex and, in the case of the females, to find a good place to lay eggs.

At $179, the BioPod™ is above our humble slacker budget level, but you can make your own out of the ubiquitous five gallon bucket. While I haven't tested this design, there's some simple plans on this informative blog devoted to the black soldier fly. The author of this blog, "Jerry aka GW," cautions that growing grubs requires attention to detail and will be easier in warmer climates such as the southeast and west coasts of the US where soldier flies can be found in the wild. While you can buy black soldier flies to populate your composter, it will be easier to grow them where they already live. Here's another DIY grub composter. If any of you have experience with building one of these please leave a comment.

And while you're ditching the Wall Street Journal, why not skip the Netflix this evening! Here's a video on grub growin' complete with a dramatic musical conclusion:



The crank in me has to add that simple ideas like becoming a grub cowboy are more exciting, and have greater potential than all the Priuses and algae fuel schemes combined. Growing grubs is an activity many of us have done accidentally. Making use of those grubs is just a matter of inserting ourselves into one of nature's clever recycling schemes.

Root Knot Nematodes, Meliodogyne spp.

Root knot nematodes are my current sworn enemy in the garden. They are very frustrating because unless you know what to look for, you may never know you have a problem. Nematodes are microscopic soil dwelling roundworms. There are many different kinds of nematodes and not all are garden pests. However, the root knot nematode is a very annoying pest indeed. Above ground, plants are stunted. Below ground, the little guys are sucking on the plant's roots and robbing it of nutrients. This weakens the overall root system, starves the plant and allows entry points for fungus and disease. Bad stuff.

I have had plants that mysteriously won't grow. No amount of fertilizer, water or sunlight seems to make them happy. Then, I pull out the plant and find the tell-tale sign of root knot nematodes- galls on the roots. The roots are stunted and distorted. They look like they are covered in tumors.

According to my California Master Gardener Handbook, plant parasitic nematodes (including the root knot type) can form complexes with pathogenic fungi in the soil. The pathogens and nematodes work together to damage the plant. Susceptible plants are damaged more than would be predicted from each pathogen alone. They are in cahoots! What is a gardener to do?

Nematodes are known to affect many valuable crop plants. There are chemical treatments available, but for a home gardener who wants to be organic, the options are more limited. I read somewhere that adding organic matter can help by encouraging beneficial soil microbes. I tried that. Plants were still stunted. So I bought nematodes to kill the nematodes. They are supposedly beneficial nematodes that prey on root knot nematodes. Of course, you can't see nematodes so I felt like I could be the Emperor with no clothes. I have no idea whether there was something in the package or not, much less what the invisible material may do in the garden. But I was desperate so I shelled out the money to give it a try. I applied the beneficial nematodes in my garden and at a client's house. So we have two experimental plots. I'll let you know how it goes.

Of course, you can always grow plants that are resistant or not affected by parasitic nematodes. I have noticed that new zealand spinach is totally immune. While other plants are stunted and won't grow, new zealand spinach flourishes. So if all else fails, I'll always have that.

Made in the shade- Passive cooling

We just survived another major heat wave here. People and plants were positively melting. The sidewalks were veritable solar cookers. I'm sure I could have fried an egg on the sidewalk outside my house.

I prefer not to crank the air conditioning, so I have been thinking a lot lately about simple ways to cool ourselves and the spaces we inhabit.

Air conditioning is the main mechanical means by which we cool buildings these days. However, there are several ways that we can cool buildings without plugging in so much as a fan. These technologies are referred to as passive. They don't require any kind of motor or electricity, just a some good planning and design.

If one were designing a building from the ground up there are myriad features that can help that building use a minimum of mechanical heating or cooling mechanisms. There is no one size fits all design. Passively heated and cooled buildings are adapted to local climate conditions. Current construction practices tend to favor the same type of ramshackle 2x4 and drywall buildings from California to Long Island, and all the climate zones in between. Just stick an air conditioner on top, put in a heating unit, and you're done. Sadly, most buildings are an energy efficiency disaster. Poor design is so prevalent, it is shocking once you know what to look for. Have you ever leaned up against a stucco or brick wall on a hot day? Ouch! You can literally burn your skin off.

However, a passive building in the humid South, might feature carefully placed windows to maximize air flow. In the desert Southwest, where temperatures can be scorching in the summer and freezing in the winter, thick, heavy walls of adobe, strawbales or rammed earth provide protection from extreme weather conditions.

Here in the Homegrown neighborhood, most of us live in old houses that are not designed with passive solar features. The Homegrown Evolution house is practically a greenhouse. My house is about 20 degrees hotter at night than it is outside. All of the hot air gets trapped and has no where to go. The windows are poorly placed allowing for little cross ventilation. Hot air rises so we need windows up high. Do you hear me architects?

Yet there are simple things those of us with old houses can do. I already mentioned window placement. Vents up high could also work. Insulation is of course a must. I had my attic insulated a few years ago and now I don't need to run the heater nearly as much in the winter. I'm not sure what effect it has on the summer heat, because it still feels pretty darn sweltering in here.

Shade is an easy way to keep things cool. Shade can be utilized inside and out. An outdoor seating area begs for shade. This can be achieved with trees and shrubs or vines trained over a trellis. A roof structure of some sort can also provide shade for outdoor areas. If you have pets that spend time outside, make sure to provide them with a cool, shady spot for hot summer days.

Trees can also provide valuable shade for your house. Leafy trees will protect your house from the direct rays of the sun. Shade prevents solar heat gain. Pure and simple. Deciduous trees that lose their leaves in the Winter can allow sunlight to enter your house in the cool season, making them ideally suited to passive heating and cooling.

You can also shade your windows. Solar shades project out over a window, thus blocking the highest angle of the sun. When the angle of the sun is lower and the heat and sun less extreme, in Winter and during sunset and sunrise in summer, sunlight can still get in the windows. A roof that projects past the walls of the house serves the same purpose by also blocking the highest angles of the sun.

I chose to employ this technology and give myself more growing space by building an arbor on the back of my house.

This shades the back of my house and makes it look much nicer at the same time. I have planted hardy kiwi on it. The kiwi will help to provide shade, give me tasty fruit, and because it is deciduous, it will die back in the Winter to allow in a little more light. Brilliant.

This of course is just a few of the things you can do to use less energy to heat and cool your home. But I hope it provides a little inspiration and gets some of you out there to reach for a shovel instead of a thermostat.