Ornamental tumbleweed onion One of Ciscoe Morris’s picks is this early summer sparkler that’s starting to bloom  as we speak.Bed 6 is home to several flowering onions that begin to open in late may, but this species is the most impressive of all with it’s huge “beach ball” size inflorescence composed of over 200 florets. What’s striking of all is the fact that when the entire seedhead dries, it is still highly ornamental in the garden and, yes, looks like a starry tumbleweed, but far more decorative.