I’m getting ready to make a raise planter bed for vegetables. My backyard is solid crabgrass, so I don’t want to have my new organic soil come in contact with my seriously crappy ground. I have found crabgrass roots thriving at over 3 feet deep. It has grown through brick and through stucco all the way up to my attic. I know for sure that if I don’t strongly seal the underside of my planter bed this parasitic weed will undo my first vegetable garden attempt (I have not attempted one before because of this problem and a raised bed seems to be the only solution). I refuse to use weedkiller in my yard because of my children and my dogs. My question is this;
How do I deal with the drainage or do I need to even worry about it?
My bed will be 24 inches tall, 4 feet wide, 10 feet long and made of wood planks. My current ideas to use thick black plastic underneath and wrapped up the sides. I have also thought of slanting a bottom floor made of plywood also covered with black plastic and a drain hole at the lowest point. Another idea I had was to put some crushed marble at the bottom ( like 5 inches thick) on top of the black plastic with three drain holes along each side but I’m sure the grass would just get in there in no time flat. How would you deal with the drainage problem?
Also if you have an idea for how to deal with the crabgrass that would be appreciated.
Thanks very much.
I don’t know a lot about gardening, but could you have it raised up, like not touching the ground at all?
Liiike.. this?: http://www.instructables.com/id/Raised-Garden-Bed-on-legs/
|Published on February 7th, 2011||Posted by admin|