Description
Heracleum maximum has 136200 seeds per pound. This plant is native to North America; in southwest Oregon it thrives in riparian areas, seasonally wet areas, and forest edges, and grows at a range of elevations.
Seed treatment recommendations: Direct sowing is recommended, though scarifying the seed with sandpaper or a file may improve germination rates. Sow in fall or stratify under cold moist conditions for 2-4 weeks before spring sowing.
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