I am building 2 raised beds for my mom who is handicapped. I have never done anything like this.
I was going to make them out of cinderblock(17' x 9') and was thinking around 36" high.
1. I want to put heavy landscaping fabric underneath each to seal the beds and was wondering if that was deep enough alone for the roots to grow(tomatoes, onions, peppers, zucchini) or if I should go higher even.
2.Drainage. I am building these two beds and then surrounding the area in brick pavers as a sort of outdoor patio. I was thinking before any of that to dig several wide-mouth PVC tubes under the raised beds and beneath the ground for water to drain and then off further down the yard. Or should I just drill holes in the bottom along sides of the cinder block? I didn't want a bunch of dirty water spilling out all the time was the only problem.
Thanks for any help. Zone 5