Baptisia bracteata is unique for its early bloom and horizontal inflorescences, but it can be more difficult to cultivate than some false indigos. ‘Spilled Buttermilk’ was developed to give the same appearance but with more vigor and ease of propagation. Its light lemon-yellow flowers are produced for three weeks on horizontally borne inflorescences commencing in early May (USDA Zone 5). Plants are more compact and produce fewer stems than most other false indigos. Like B. bracteata, this selection may go dormant by August, so plant ‘Spilled Buttermilk’ where its disappearance in the garden can be masked. Best grown in well-drained soils. A B. australis × B. bracteata hybrid backcrossed to B. bracteata.
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The Prairieblues™ false indigos were developed by Jim Ault, Ph.D., at the Chicago Botanic Garden from crosses made between 1999 and 2004. The selections were developed from crossing Baptisia albescens (formerly B. alba), B. australis var. australis, B. australis var. minor, B. bracteata (formerly B. leucophaea), B. sphaerocarpa, and B. tinctoria in various c ombinations. All parent plants and selections were grown in-ground at the Chicago Botanic Garden (USDA Zone 5b) during the breeding and selection process.
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Mobile, Alabama 36640