Also called Friar’s Cap. Produces a mass of late-summer blooms with dense showy spikes of dark violet-blue helmet-shaped flowers held above elegant palmate foliage in late summer. Grand delphinium-style blooms rarely need staking. Forms large clumps in short order.
An excellent cutflower—cut when ⅓ to ½ the spike is in bloom. I love watching bumblebees disappear under the hood then clamber out covered in pollen.
The entire plant is poisonous; wear gloves and wash your hands after handling or cutting. Prefers partial shade. Plant 15-20" apart in moist soil. Z3. (bare-root crowns)
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