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Green Landscaping: Greenacres
Native Plants of the Great Lakes
North Branch Restoration Project Seed Book
Agastache Nepetoides / Family:
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.