Growing veg along flat roof - squash / pumpkin

mange tout

I have a flat roof that gets a lot of sun. It would have a small wall around it to provide a small sheltered area

I have bought a few small veg beds which I can put up there and fill with compost. I think one is 25 cm deep, I think the other might be 40cm deep

I was thinking what to put up and I know that squashes are wonderers. I'm wondering how they or pumpkins might do if the plant itself is in compost, but they then grow out themselves along the membrane of the roof? I mean, if the main root of the plant itself is in soil is that enough for it? Or do the bits that grow out of it need to be on soil also?

tagwex · Posted: Sun May 13, 2018 9:33 am Post subject:

Just the root but be prepared for tendrils up to 4m long.

mange tout · Posted: Sun May 13, 2018 1:01 pm Post subject:

Yeah not worried about the growth as long as it doesn't damage the plant or membrane. I suppose if they do really well there could be a danger of falling fruits but I doubt it somehow