Arisaema thunbergii ssp urashima Silver Seas Cardamine The clumps are topped with

The clumps are topped with 30" scapes of lavender flowers that attract hummingbirds in midsummer

from a slowly creeping rhizome that makes a 4' wide clump in 6 years

golden-yellow flowers with a dark gold throat

it's a dark secret

Arisaema thunbergii ssp urashima Silver Seas Cardamine The clumps are topped withArisaema 'Silver Seas' is a Hans Hansen selection of the Japanese Arisaema urashima with a nice glaucous 11 15 lobed horseshoe shaped leaf, each lobe highlighted by a band of silver down the middle. The flower is typical of this offsetting species, emerging in mid April on a short stalk among the foliage with a large black hood, white throat, and long whip like sex organ that'll scare off even the most seasoned pollinator.