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Green Landscaping: Greenacres

Native Plants of the Great Lakes

North Branch Restoration Project Seed Book

Agastache Nepetoides / Family: Lamiaceae
Yellow Giant Hyssop (Swink), Swink/Wilhelm # 5

Click to view larger photo

FLOWERING: Mid-July to early October.

SEED TIMING: Late September to late October.

HABITAT: Woodland edges and savannas.

DIAGNOSTIC FEATURES: Up to 8 feet high. Plant is smooth, square-stemmed, with thin, coarse, dark green, toothed leaves and crowded spikes of pale yellow, mint-like blossoms.

TO PICK: Look down from above to the inside of each dried brown calyx on spike. Ripe seed is very dark in color and shakes out easily.


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