Photo of Agastache Black Adder (Hyssop)
Agastache Black Adder - It is an upright, clump-forming giant hyssop that grows to 2-3' tall. It is noted for its long summer-to-frost floral display of tubular, 2-lipped, smoky red-violet flowers that bloom in showy, bottle-brush, terminal spikes (to 6-8" long). Flowers appear in many-flowered vert
Ref. 07146
Author :
Rock Giguère
Online since:
May 19th 2013
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