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NEW 2026 CATALOGUE IS ON-LINE
20% EARLY ORDER DISCOUNT - ORDER BY MARCH 31, 2026 (orders over $50)
ACCEPTING PICK-UP ORDERS ONLY.

Agastache 'Black Adder'

Agastache 'Black Adder'

Giant Hyssop

Zone 5 - 9

This is a newer form with smokey-blue flower spikes from July to frost. Wonderfully aromatic perennial that will remind you of licorice or aniseed everytime you brush by it. It is a favourite of bees, butterflies and hummingbirds. In the winter it is very popular with chickadees, sparrow and junco who love the tiny black seeds. This is an easy perennial for full sun to partial shade and ordinary garden soil. HEIGHT: 90-120 cm SPREAD: 45-60 cm

1 gallon container size

Image courtesy of NVK Holdings


Price: (1 to 2) $17.95

Price: (3 or more ) $17.50


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