Hey y'all. New to the forum and I have a question.
I have a large area in my backyard that I want to turn into a bed for roses. Its 7' x 7'. Right now, it's just a cutout around a tree, but my plan is to build up a retaining wall, using either pavers or concrete blocks. Then I'd like to fill inside the wall with potting soil and plant roses. I'd like to go about 2' deep for my roses.
This is my issue. I saw once on one of those DIY channels, that in the bottom of your flower bed, you can use old plastic bottles like water bottles, to lay underneath the soil. It keeps from using too much soil, recycles the bottles and also creates a perfect drainage system for the water to drain away from the roots.
Would 1' be enough soil for the roses? Or should I just forego the idea of using the bottles, and go with 2' of pure soil?
I don't want to go too much higher than 2' tall because I want to make the retaining wall a bench seat as well, with caps on the blocks.
Please forgive me if I ask silly questions. I've never been too handy with plants so I figure it'd be best if I ask before I dive in with too much expense.
