I had a green house a few years ago and put membrane down with slabs down the centre and the rest gravel and grow in pots and grow bags , works well for me
the reason is that friends who have planted in the soil have had to replace the soil after a few years
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Thanks Steve 309, that's another option
I had a green house a few years ago and put membrane down with slabs down the centre and the rest gravel and grow in pots and grow bags , works well for me
the reason is that friends who have planted in the soil have had to replace the soil after a few years
Best of luck