Aconitum superbum Kupres New Guinea The basal fan of iris

The basal fan of iris foliage is topped

The 2' wide clumps are topped in very late summer with 18" scapes of light lavender flowers

The clumps are adorned in early April (NC) with stunning masses of large purple-black flowers

dark green foliage

and long whip-like sex organ that'll scare off even the most seasoned pollinator

Aconitum superbum Kupres New Guinea The basal fan of irisFor 2026, Plant Delights JLBG are pleased to share Aconitum superbum 'Kupres', an amazing monkshood that Hans Hansen and I spotted at 4,200' elevation near the town of Kupres, Bosnia in 2012. I didn't think this high elevation form had a chance in our hot summers, but after seeing Hans' success in Michigan, we gave it a try. Shockingly, it also thrives in Eastern NC, growing in full sun with consecutive weeks at 90 100 degrees F. For us, starting in