My Coryphantha blooming

One of the plants on window-sill. Coryphantha cornifera, first bloom. This plant itself is about 6.5 cm wide, huge flowers opened just for 2 days.

When they come into flower, they make the summer and autumn bright! It is nice that many of them flower later than Mamms and Escobarias. Yours is a nice plant, and has brightened a dull day. Thanks.

Thanks, Chris. We had pretty warm and sunny September here in Calgary and many plants still are growing. But my outdoor Escobarias already shrunk and prepared for coming colds.