Red Silk Cotton Tree
bombax ceiba
Also known as: ["Silk Cotton Tree","Red Cotton Tree","Semal"]
Overview
A large deciduous tree native to tropical and subtropical regions, known for its striking red flowers and woody, cotton-like fruits.
Benefits & Perks
["long-flowering","wildlife attractant (bees, butterflies, birds)","fast growing","aesthetic foliage"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Malvales |
| Family: | Malvaceae |
| Genus: | Bombax |
| Botanical Name: | Bombax ceiba |
Plant Characteristics
Basic Information
- Category: Trees
- Suitable Location: outdoor garden in tropical or subtropical regions
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"15–40°C"}
- Hardiness: {"zones":"9–11"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, loamy soil with added organic matter.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: high
- Pruning Frequency: Annually in late winter or early spring before new growth.
- Pruning Intensity: Moderate to heavy, depending on desired shape and size.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours/day); tolerates partial shade but may reduce flowering.
Sunlight Tolerance Tips:
Acclimate gradually if moving from shade to sun; protect from intense midday sun in hot climates; ensure good air circulation to prevent sunburn.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun
Rotate plant for even light exposure; use sheer curtains to filter harsh sun; avoid placing near reflective surfaces that intensify light.
Watering
every 7–10 days during growing season, reduce in winter
Water thoroughly but infrequently; ensure soil dries between waterings; adjust based on season and growth stage.
Soil
well-draining, loamy soil with some organic matter
pH: Slightly acidic to neutral (pH 6.0–7.0).
Use a mix of cactus soil and regular potting soil; avoid heavy clay soils; ensure pots have drainage holes.
Temperature
Warm temperatures (65–85°F/18–29°C); prefers stable conditions; sensitive to frost.
Avoid sudden temperature changes; protect from drafts; maintain consistent warmth during active growth.
Fertilizing
every 4–6 weeks during active growth
Dilute fertilizer to half strength; avoid fertilizing newly repotted plants; flush soil occasionally to prevent salt buildup.
Propagation
Methods
Stem cuttings or seeds.
Step-by-Step Propagation Guide
- Take cutting.
- Apply hormone.
- Plant in medium.
- Maintain moisture.
- Wait for roots.
Best Time: Spring or early summer when plant is actively growing.
Environment
Warm (70–80°F/21–27°C), high humidity, and bright indirect light.
Medium
Well-draining mix (e.g., perlite and peat moss) or sandy soil.
Hormone
Recommended to promote root development.
Timeline
Roots in 4–8 weeks; establish in 3–6 months.
Tools Needed
Pruners, rooting hormone, pots, well-draining medium.
Quick Tips
Use healthy, non-flowering stems; keep soil consistently moist but not waterlogged; provide bottom heat if possible.
Pruning & Repotting
Pruning Guide
Method
Cut back main stems to encourage branching; remove crossing or crowded branches.
Pruning Plan
Shape plant, remove dead/diseased growth, and encourage bushier form.
Tools
Pruning shears, loppers, gloves.
Checklist
Sterilize tools; prune during dormancy; make clean cuts; dispose of clippings.
Repotting Guide
Best Season
Early spring before active growth begins.
Pot Size
One size larger pot (e.g., +2–3 inches in diameter).
Method
Remove plant gently; trim roots if needed; place in new pot with fresh soil; water lightly.
Suggestions
Repot every 2–3 years or when roots fill the pot; beneficial for growth and health.
Checklist
Check root bound status; prepare new pot with drainage; use fresh soil mix; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; adjust seasonally.
How to Apply Water Properly
Water at the base, ensuring moisture reaches the root zone; allow excess to drain; water early morning or late evening to minimize evaporation.
Watering Schedule Tips
Water deeply once the top inch of soil is dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or sand for drainage; incorporate compost for fertility; ensure good aeration.
Temperature Stress Management
Signs of Temperature Issues
Leaf drop, wilting, stunted growth, or browning leaf edges.
Cold Stress
Stops growth; may drop leaves; prolonged exposure can cause dieback or death.
Solution: Move to a warmer location; provide frost protection; avoid overwatering in cold conditions.
Hot Stress
Wilting, leaf scorch, or reduced flowering due to excessive heat.
Solution: Provide shade during peak heat; increase humidity; water more frequently but avoid waterlogging.
Fertilizing Guide
Fertilizing Checklist
Check season; use diluted fertilizer; apply to moist soil; avoid contact with roots.
Fertilizing Method
Use balanced liquid fertilizer (10-10-10) every 4–6 weeks during growing season (spring/summer); reduce or stop in fall/winter.
Common Problems & Solutions
Toxicity Warning
Cats
Slightly ToxicBombax ceiba seeds and pulp can cause mild gastrointestinal issues in cats if consumed. While not highly toxic, ingestion should be avoided.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Slightly ToxicThe seeds and pulp of Bombax ceiba may cause mild gastrointestinal upset in dogs if ingested. No severe toxicity has been reported, but caution is advised.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Slightly ToxicBombax ceiba is generally considered non-toxic, but its seeds and pulp can cause mild gastrointestinal distress if ingested in large quantities. The plant does not typically pose significant health risks to humans.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Does Bombax ceiba produce edible fruits?
A: No, the fruits are woody and contain cotton-like fibers, not edible fruits.
Q: Is Bombax ceiba suitable for urban planting?
A: Yes, it is hardy and can thrive in urban environments with sufficient space.
Q: How tall does Bombax ceiba grow?
A: It can grow up to 20-25 meters tall in ideal conditions.
Quick Reference
| Family: | Malvaceae |
| Care: | moderate |
| Light: | full sun |
| Water: | every 7–10 days during growi |
Get Expert Care Tips
Download the Plantious app for personalized care reminders and plant identification!
Google Play App Store
