In an online discussion held in a course at SAIT for the Environmental Technology program (ENVS470 – Advanced Environmental Considerations) someone asked if we’d all got our free rain barrels from the City of Calgary yet. “The City does not give rain barrels away,” I retorted. “They cost up to $80 outside the sale in May.” Turns out I was wrong about that. “You have to sign up for the Healthy Yards program,” I was told. So I looked in to it, and signed up right away.
I expected to have to wait until 2012 to get my equipment, as the student said she had signed up too late last year to get hers, so she gets it this year. Imagine my surprise, then, when I got an email informing me that I’d been accepted to the program for this year and would get my equipment soon. This all happened in mid-May. I now have got my rain barrel and composter, and am eager to get everything going.
Now some background. The City of Calgary Healthy Yards program is a two-year commitment on the part of the participant, with some very simple requirements that are very easy to comply with. While it is free to participate, there is a limit of 200 participants per year – hence the waiting list described above. As mentioned, participants receive a complementary rain barrel and composter, as well as a DVD with videos demonstrating and explaining how to use this equipment and
- how to use a mulching mower,
- how to select and plant water-wise alternatives for Calgary’s unique climate, and
- responsible pest management.
The basic requirements of the program are (if I’ve missed something, please let me know!)
- use the provided equipment,
- practice grass-cycling,
- use a push-mower, or at most a 4-stroke gas mower,
- limit or eliminate pesticide and artificial fertilizer use.
These are all pretty simple. The Healthy Yards Orientation will provide you with more information about how to compost, how to use your rain barrel, how to grass-cycle, and much more.
One part of growing a healthy garden is to have the right soil. Soil is described, at least in part, by its texture, and one of the easiest ways to determine this is to use the jar test. Soil textures are often described by terms such as “clay,” “clay loam,” “sandy clay loam,” and so on. The Healthy Yards program encourages participants to determine their own soil texture using the jar test. It is not difficult – in fact, it is probably the easiest (and cheapest) way to do it. Native soils in Calgary are generally clayey and require amendments such as peat, compost, vermiculite, et cetera, to become more workable. Unfortunately, the process of developing a good, healthy, organic soil base can take several years of careful attention.
The funny thing is that I learned all about the jar test, as well as a couple other soil classification methods such as sieve analysis, in the laboratory component of my course in Sampling and Analysis at SAIT. The basic idea with the jar test (Procedure: Jar test for determining soil type) is to collect a representative soil sample from your garden, place it in a jar (such as a mayonnaise jar), fill to about 3/4 with water, add some borax or non-foaming dishwasher detergent, seal the jar, shake vigorously for about 10-15 minutes, and then let the jar sit for 2-4 days. The different components of the soil will separate at different rates based on particle diameter and density (Stokes’ law), so that coarser materials will settle first and clayey particles will settle on the surface. By measuring the thickness of each layer (differentiate them by colour) and comparing it with the thickness of the entire soil column you can determine the percentage composition of sand, silt, and clay. Then refer to the soil texture triangle to classify it. (Apparently the Canadian system uses only clay and sand proportions to classify. The link provided goes to the more familiar US version.)
Anyway, the point is that the Healthy Yards program is cool, easy, and inexpensive. There is no reason you shouldn’t get going with it yourself!