Posted: 15/04/2013 at 20:15
i have a 10 foot trampoline with the same problem. i have daffodils,snowdrops, crocus, fritalaria, anemones, ferns, iris reticulata, primrose, lantern rose and other bits and bobs planted underneath. i leave the main metal structure in place and take off the black cover in autumn. i only put it back around Apr/May by which time most of the flowers would have gone over. Some of the bulbs have been in there for years but a few have been added to turn it into a sort of woodland area. i would try and take some photos morrow.