Two years ago I planted Allium Giganteum. Last year I was so excited that they were coming up but not happy when we had a bad rain storm that snapped both of the stems! So this year I was so happy to see that they look healthy and are now blooming! They are about 2 1/2 feet tall and the flowers are like the size of a softball. I wish the flowers would stay all through the summer but the seed heads are equally beautiful.... in their own way!