1000 Seeds Scarlet Toothcup Heirloom Native Wildflower Wetland Garden

Scarlet Toothcup (Ammannia coccinea) is a native North American wildflower valued for its slender upright stems and clusters of small, vivid reddish-pink blooms that open along the upper branches through summer into early fall. Also known as red ammannia, this heat-loving annual thrives in moist to wet ground, making it a natural fit for rain gardens, pond margins, bioswales, and other damp corners of the landscape where many flowers struggle.
Its compact, upright habit and long bloom window make it an easy, low-maintenance choice for naturalized plantings, pollinator-friendly borders, and water-wise wildflower mixes. The small blooms sit close to the stems, giving a soft, hazy effect that pairs well with sedges, rushes, and other wetland companions, and the foliage often takes on warm red tones as the season progresses for added late-season color.
Species: Ammannia coccinea
Type: Annual wildflower
Plant_Habit: Upright, branching, 12-24 inches tall
Sun: Full sun to partial shade
Soil: Moist to wet, loamy or sandy, tolerates seasonal flooding
Days_to_Harvest: 60-90 days to bloom
Zones: 4-10
Germination: 14-30 days at 65-75F; light aids germination, surface sow
Sowing: Direct sow after last frost or start indoors 6-8 weeks earlier
Spacing: 8-12 inches apart
Notes: Native to much of North America; beautiful in rain gardens and pond edges