There is plenty of room in that pot for both of them, but they might look better in separate pots. If they bloom at the same time, and are compatible, seed pods will form where the flowers were.

Happy growing!

I like the look together - contrast is a good thing! I have a bowl with some humilis, 'Walmsley's Bronze', and a few of the really little ones, like 'Dapper Green' and 'Winter Sun'. Lots of color and texture contrasts. And it seems like sometimes, they grow better in "colonies" than alone, especially the smaller ones.

Denise in Omaha