Iris sibirica 'Butter and Sugar'

Iris sibirica 'Butter and Sugar'
(McEwen 1977) Diploid. Early midseason, late midseason. Blooms in early summer with a possible rebloom later. Unique breakthrough introducing yellow in 28 chromosome Siberians. Beautiful and outstanding in every way. A non-fading yellow amoena. Fine parent. HM 1978, Morgan-Wood Medal 1986. 27", Z4-9.

Photos courtesy of Walters Gardens, Inc.