"beemerwacker" wrote in message
oups.com...
Greetings from the alt.solar.photovoltaic group!

I have a cabin in northern Michigan which has very sandy soil. Grass is
a wasted effort as are a lot of other plants. My veggies are going to
be using square foot planters. But, I want to try growing some flowers;
daisy, marigold, zinnia and whatnot.

Here's what I'm thinking to get the ground to hold moisture (I'm there
once week or every two weeks): dig out the planting area and line the
bottom of it with weed block or fiberglass window screening, then fill
it with peat/soil mixture. My planting area will be about 10 foot by 10
foot.

"They" say the reason the US midwest has such great growing soil is that the
topsoil is fairly shallow and the deep subsoil is rather impervious to
water - in other words, the nutrients and moisture are held at the surface
by the topsoil.
Conversely, some of the deepest topsoil in the world is in the Blue
mountains of Australia, and it is pretty poor growing there- water and
nutrients drain right down out of the root zones.

In that mode of thought, I would think that instead of using weedblock or
window screen, you might be better off to dig out a foot to a
foot-and-a-half out of the bed and line the bottom with 6 mil plastic, and
make a foot-long cut every two-three feet in the plastic (to let any really
heavy rain a way to drain out). It would hold nutrients and moisture in the
root zone.

Mix peat and soil and some compost with some of the removed sand, get a
proper PH, add some fertilizer, and sort of emulate the Minnesota-Iowa
prairies soil-subsoil setup.

fwiw


Max
http://www.northernmichigansolar.com