water magic

Hi I've bought some water retaining crystals made from polyacrylamide gel. They are for hanging baskets and tubs. I have used them before when we planting a new wood nearby but wondered if they were ok to use with edible plants. It doesn't bother me if you can't - I just wondered. Nic.

Doh! Didn't think of using the search and feel a bit silly, Nic.