I keep seeing these and never quite get round to finding out what they are. I saw them first at Jefferson Market Garden a couple of years ago. Then a few weeks ago at BBG they looked stunning set against a moody gray wall. A few days ago I saw them again, in Central Park growing with Virginia Blubells, like white snowdrops but with a green dot on each petal. I've finally tracked it down- its Leucojum Aestivum related to the snowdrop, also known as Summer or Spring snowflake
