I am actually going to be using raised beds to create more growing areas in my backyard this year. I already have a little 15' X 8' garden area...but I need more and need to isolate a few types of veggies such as tomato.wsmoak said:It depends on what the soil and drainage are like underneath. That is, why are you doing raised beds?
If you are working with hard packed clay that refuses to drain, then the deeper the better! If your soil is generally okay and you're doing raised beds mostly for convenience or looks, then you don't _need_ to go very deep at all (but you may _want_ to.)
I have half a dozen permanent raised beds that are 12" tall (though they are not filled al the way up.) Then I have a bunch more rectangles of various sizes that I set down wherever I want to grow something and toss some dirt in. Those are about 6" tall and maybe get 4" of dirt in them. They are mostly there to mark where the plants are so no one steps on them or drags a hose over them.
-Wendy
Thanks! I am going to become a lasagna gardener!HunkieDorie23 said:If you are starting from scratch and you putting it over grass you might want to try a lasagna garden.
http://organicgardening.about.com/od/startinganorganicgarden/a/lasagnagarden.htm
I used this for my herb garden a couple of years ago. I am redoing them this year but only to make it bigger and to change the border. I am going to use the lasagna method though.
I finished my first one yesterday, made it out of pallet lumber and scrap 2X4's, It's 4X4 and 7 1/2" deep, it cost me only the 8 screws I used to put it together with. Can't wait to get some soil in it. The season extender you mentioned has me interested! Hmmm...I have some 1/2" and 1/4" PVC pipe that I could probably bend into a hoop shape and then I can get some clear/opaque plastic and have tomato's in the winter time in my Zone 8a??lillie said:Last summer I gave the Square Foot Gardening thing a try and we built 2 beds that are 4' by 4', 6" deep, and 4 1' by 6' beds (also 6" deep). They all worked really well for what I grew even with just 6" of soil. I didn't grow any root vegetables though.
Of course you can always make them deeper if you'd like, but if you can come across one of the books (or just look it up online) there are great ideas for adding things to your raised beds such as a chicken wire cover to keep bunnies & deer out (which we did, and it worked great!), and ideas to make season extenders & trellises & such.