Possibly the most important color break in Siberian Iris breeding. This Currier McEwen cross offers falls of bright butter yellow between neat white standards. The large, shapely flowers are carried on 28in stems, and in our gardens we find that the colors blend superbly with every other Siberian Iris. 'Butter and Sugar' is an easy choice.
Iris breeders are dramatically changing the range of colors, heights, and bloom times available in this group. Siberian Iris often begin to flower in late May, but the peak of bloom here is in the first half of June. Their thick roots drive down deeply, which makes them drought resistant (though they also thrive in damp soil) and great plants for holding steep banks in place. Each clump becomes huge, and when a group of them grows together, weeds can't grow in between. After bloom, the grassy leaves stand erect and green through the growing season. Siberian Iris struggle in the desert Southwest.