Broadleaf Waterwort
ammannia latifolia
Also known as: ["Broadleaf Waterwort","Ammannia coccinea"]
Overview
Ammannia latifolia is an aquatic or semi-aquatic herbaceous plant native to tropical regions, known for its vibrant red or pink flowers and broad leaves.
Benefits & Perks
["long-flowering","wildlife attractant (bees, butterflies, birds)","aquatic plant"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Myrtales |
| Family: | Lythraceae |
| Genus: | Ammannia |
| Botanical Name: | Ammannia latifolia |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: indoor pot or outdoor garden bed in warm, humid environments
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"15–30°C"}
- Hardiness: {"zones":"9–11"}
- Misting: every 2–3 days to maintain humidity
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining potting mix with added perlite or sand for aeration.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Every 2–3 months or as needed to control size and shape.
- Pruning Intensity: Moderate; remove up to one-third of the plant if overgrown, but avoid heavy pruning during dormancy.
Care Details
Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; can tolerate partial shade but may become leggy with insufficient light.
Sunlight Tolerance Tips:
Acclimate gradually to intense light to avoid scorching; place in a spot with filtered light if outdoors; indoors, use sheer curtains to diffuse direct sunlight.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
partial shade to full sun
Rotate plant weekly for even growth; avoid direct afternoon sun; supplement with grow lights if needed.
Watering
every 3–5 days during active growth, reduce in winter
Water thoroughly until it drains from the bottom, avoid letting the plant sit in water, and adjust frequency based on season and growth stage.
Soil
moist, fertile, well-draining soil
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure pots have drainage holes; avoid heavy clay soils; top-dress with compost annually.
Temperature
Prefers warm conditions, ideal range 65–85°F (18–29°C); sensitive to cold drafts and sudden temperature drops.
Protect from drafts; maintain stable temperatures; adjust watering in extreme heat.
Fertilizing
every 2 weeks during growing season, monthly in winter
Always water before fertilizing to prevent root burn; flush soil occasionally to prevent salt buildup; use a balanced formula for overall health.
Propagation
Methods
Stem cuttings are the most reliable method for Ammannia latifolia.
Step-by-Step Propagation Guide
- Take a 4–6 inch cutting just below a node.
- Remove lower leaves.
- Dip in rooting hormone (optional).
- Plant in moist medium.
- Maintain humidity.
Best Time: Spring or early summer when the plant is actively growing.
Environment
High humidity (70–90%), warm temperatures (70–75°F or 21–24°C), and indirect light.
Medium
A mix of peat and perlite or a standard potting mix with good drainage.
Hormone
Rooting hormone can be used but is not strictly necessary for this species.
Timeline
Roots typically develop within 2–4 weeks; new growth may appear after 4–6 weeks.
Tools Needed
Sharp scissors or knife, rooting hormone (optional), small pots, plastic bags or propagation dome.
Quick Tips
Keep cuttings out of direct sun; maintain consistent moisture; remove lower leaves to prevent rot.
Pruning & Repotting
Pruning Guide
Method
Pinch back tips or cut stems just above a leaf node to promote branching.
Pruning Plan
Prune to maintain shape, encourage bushier growth, and remove dead or leggy stems.
Tools
Clean, sharp scissors or pruning shears.
Checklist
Sterilize tools; prune above nodes; remove dead/damaged growth; clean up debris.
Repotting Guide
Best Season
Spring, before the active growing season begins.
Pot Size
Choose a pot one size larger (e.g., 2 inches wider in diameter) than the current one.
Method
Gently remove the plant, trim any circling roots, place in a slightly larger pot with fresh soil, and water lightly.
Suggestions
Repot every 1–2 years or when roots fill the pot to prevent overcrowding and ensure fresh soil.
Checklist
Check root bound status; prepare new pot with drainage; trim roots if needed; use fresh soil.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water thoroughly; ensure drainage; adjust for season.
How to Apply Water Properly
Water directly at the root zone, ensuring even moisture distribution without wetting foliage; water deeply to encourage root growth, and always check drainage to prevent waterlogging.
Watering Schedule Tips
Water regularly during active growth (spring/summer), allowing the top inch of soil to dry between waterings; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or coarse sand to improve drainage; incorporate organic matter like compost for fertility.
Temperature Stress Management
Signs of Temperature Issues
Leaf yellowing or browning, stunted growth, or bud drop in cold; wilting or leaf scorch in excessive heat.
Cold Stress
Low temperatures slow growth, weaken the plant, and increase susceptibility to pests and diseases.
Solution: Move to a warmer location, avoid cold drafts, and provide a heat source if necessary during winter.
Hot Stress
Excessive heat can cause leaf scorch, wilting, and dehydration, especially if combined with low humidity.
Solution: Increase humidity with misting or a humidifier, provide shade during peak heat, and ensure adequate watering.
Fertilizing Guide
Fertilizing Checklist
Check season; dilute fertilizer; apply to moist soil; avoid foliage contact.
Fertilizing Method
Use a balanced liquid fertilizer diluted to half strength every 4–6 weeks during growing season (spring/summer); avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicAmmannia latifolia is not known to be toxic to cats. There are no reported adverse effects from ingestion or contact with this plant.
⚡ Toxic If:
None
Dogs
Non-toxicAmmannia latifolia is not known to be toxic to dogs. There are no reported adverse effects from ingestion or contact with this plant.
⚡ Toxic If:
None
Humans
Non-toxicAmmannia latifolia is not known to exhibit toxic properties to humans under normal conditions. It is generally considered safe for handling and consumption.
⚡ Toxic If:
None
Frequently Asked Questions
Q: Is Ammannia latifolia suitable for aquariums?
A: Yes, it is commonly used in aquariums and water gardens due to its vibrant color and aquatic nature.
Q: How often should I water Ammannia latifolia?
A: As an aquatic plant, it should be submerged in water or kept in consistently moist soil.
Q: Does Ammannia latifolia require full sun?
A: It thrives in partial to full sun, but can adapt to lower light conditions.
Quick Reference
| Family: | Lythraceae |
| Care: | moderate |
| Light: | partial shade to full sun |
| Water: | every 3–5 days during active |
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