This is interesting, I think. The first photo shows a pot of Galanthus reginae-olgae Annmarie Kee, which should have green tips. The best they've done for me is a trace of green on one or two flowers, although one bulb has produced a flower with green-tinged pinched ends to the outers this year. The really remarkable thing is in the second picture. These are bulbs from chips taken LAST JUNE! Three flowers from 14 chips in just over a year is exceptional (even if they don't have green tips!). That's fast even for a narcissus, let alone a snowdrop.