Also known as Koehne Ammannia · Pink Ammannia · Toothcup
Ammannia latifolia, or pink redstem, is an herbaceous perennial native to the Americas, often found in wet environments and valued for its ornamental qualities.
At-a-glance light, water, soil, and growing conditions from plant data
Bright Light
75% intensity
Requires bright, indirect sunlight or direct sun if acclimated. Insufficient light can lead to weak, leggy growth.
Consistent Moisture
100% intensity
Prefers constantly moist to wet soil or submerged conditions. Avoid letting the substrate dry out completely.
Loam, Clay, Sand, Silty
50% intensity
Warm
75% intensity
Prefers temperatures between 20-28°C. Protect from frost and extreme cold.
Aquatic
50% intensity
Moderate
50% intensity
Feed with a balanced liquid fertilizer diluted to half strength monthly during the growing season.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Ammannia latifolia thrives in consistently moist soil. Water regularly, especially during warmer months, ensuring the substrate remains damp but not waterlogged. In aquatic settings, maintain a stable water level.
Reduced watering may be tolerated during dormancy, but avoid complete drying out.
Pruning is minimal and primarily for aesthetic purposes or to control size. Trim leggy stems to encourage bushier growth. Dead or damaged leaves should be removed promptly.
Pinching back the tips can promote branching and a more compact form.
Propagation is easily achieved through stem cuttings or seeds. Cuttings can be rooted in water or moist substrate. Seeds can be sown in moist soil and kept warm and humid.
Division of established clumps is also a viable method.
Repotting is rarely necessary for this aquatic or semi-aquatic plant. If grown in a container, repot only if it becomes severely root-bound or to refresh the substrate.
This is best done in spring, using a nutrient-rich aquatic soil mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Pink Redstem (Ammannia latifolia)
Where Pink Redstem (Ammannia latifolia) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Myrtales |
| Family | Lythraceae |
| Genus | Ammannia |
| Species | Ammannia latifolia |
Similar in genus Ammannia
Answers based on plant encyclopedia data
