Spring Snowflakes

I brought some up from Somerset but they are not through the ground yet. These seem to be shorter than mine which grow about 15" high.

Could they be the Summer snowflake which flowers in Spring.These are the Spring snowflake that flowers in Winter.The Autumn snowflake flowered last year for me in July!

You are right. Mine flowered in the house last year late February early March. I think I have L. aestivum subsp. pulchellum because it has smaller flowers, smooth edges on the leaves and should flower March to May.