
Grand redstem
Ammannia robusta
Grand redstem (Ammannia robusta) is a wetland annual herb with attractive reddish stems and small pink-purple flowers, often found along pond edges, rice paddies, and marshy areas. It thrives in consistently moist to wet soil and does well in rain gardens, bog gardens, or shallow water features with partial sun. This plant is low-profile in the ornamental trade but appeals to native plant enthusiasts and aquatic garden hobbyists.
Care Level
Moderate
Sun
Partial Shade
Water
Moderate
Growth Rate
Moderate
Mature Height
12″ – 48″
Soil
loam
Life Cycle
Perennial
Spacing
12″
Watering Schedule
Every 5-7 Days Or Keep Substrate Consistently Moist • Water Generously; This Plant Tolerates Wet Or Waterlogged Conditions Typical Of Wetland Margins
Soil pH
4 – 5.9
Temperature
-25° – 95°F
Mature Spread
up to 48″
Root Depth
Medium
Foliage
Medium
Propagation: Seed, Division, Cutting
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Nov 15, 2006 by Photoflora - Jean-Luc TASSET (©)
No nurseries currently have this species in stock.