Tall Bearded Iris 'Boysenberry Buttercup': Delicious Color Fusion for Late Spring

The Tall Bearded Iris 'Boysenberry Buttercup' serves up a delectable color combination that evokes summer berries and sweet cream. Introduced in 1997 by Lauer, this modern cultivar showcases the sophisticated color blending that characterizes contemporary tall bearded iris breeding—complex, multi-tonal flowers that shift and shimmer in changing light.

Visual Characteristics

Cultivar Profile

Growing Notes

Lauer's tall bearded iris introductions are known for their innovative color combinations and strong garden performance. 'Boysenberry Buttercup' (1997) represents the late 1990s peak of TB breeding, where form, substance, and color complexity reached new heights. Modern TBs typically have 7-12 buds on well-branched stems (3-4 branches plus terminal), with flowers 5-7 inches across. The color blending in cultivars like this—where multiple tones merge seamlessly—is a hallmark of advanced breeding. Tall bearded irises require full sun (minimum 6 hours), well-drained soil with pH near neutral, and good air circulation. They are not suitable for wet sites or heavy clay without significant amendment. In hot summer climates, the foliage may decline after bloom; this is normal. Cut back to 6-8 inches in late summer during division to rejuvenate.