Arg!!!! We lost lots of ours too - it's my first year growing stuff, and I faithfully grew + re-potted & hardened off some beauties, then this morning I check around and find some OK, and others a mere stick!! Boooooo! Have put some eggshells around the bases of the ones that are left, hope I get a few flowers at least!!
Commiserations on your losses, everyone, I can sympathise.
Pinky