Lily of the valley bulbs seem to have disintegrated
I got some lily of the valley bulbs or rhizomes and planted in container last June in a UK garden. They didn't appear above the soil at all so I dug them up last week. There seems to be nothing left of the bulbs and just some of the roots remain (sorry not sure what they are technically called).
Should I give them up as a bad job?
Would appreciate some advice