Pink Shower Tree, Malay Apple Tree
cassia javanica
Also known as: ["Cassia javanica L.","Cassia javanica var. javanica"]
Overview
A deciduous tree known for its striking pink or red flower clusters that bloom in spring, native to Southeast Asia.
Benefits & Perks
["long-flowering","aesthetic foliage","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Fabales |
| Family: | Fabaceae |
| Genus: | Cassia |
| Botanical Name: | Cassia javanica |
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":"15–35°C"}
- Hardiness: {"zones":"9–11"}
- Misting: every 2–3 days in dry climates, rarely required otherwise
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, fertile potting mix with organic matter; can include cactus mix for better drainage.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Annually in late winter or early spring before new growth begins.
- Pruning Intensity: Moderate; remove up to one-third of old growth to rejuvenate the plant.
Care Details
Ideal Sunlight Coverage:
Full sun to partial shade; 6–8 hours of direct sunlight daily, with some afternoon shade in hot climates.
Sunlight Tolerance Tips:
Acclimate gradually to intense sunlight; protect from harsh afternoon sun to prevent leaf scorch; adjust placement based on indoor/outdoor conditions.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
partial shade to full sun
Rotate plant for even light exposure; use sheer curtains to filter intense sun; avoid placing near reflective surfaces that intensify light.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly until it drains from the bottom; allow soil to dry slightly between waterings; avoid overwatering.
Soil
well-draining, fertile, slightly acidic loam
pH: Slightly acidic to neutral, pH 6.0–7.0.
Use a mix with good drainage; avoid heavy clay soils; topdress with compost annually.
Temperature
Prefers warm temperatures, 65–85°F (18–29°C); tolerates mild frosts but thrives in tropical conditions.
Protect from frost; avoid sudden temperature changes; maintain consistent warmth during active growth.
Fertilizing
every 4–6 weeks during growing season with balanced liquid fertilizer
Fertilize only when actively growing; flush soil occasionally to prevent salt buildup; avoid over-fertilizing.
Propagation
Methods
Stem cuttings or seeds; stem cuttings are more common for home growers.
Step-by-Step Propagation Guide
- Take a 4–6 inch cutting.
- Remove lower leaves.
- Apply rooting hormone.
- Plant in medium.
- Keep moist and warm.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm, humid environment with indirect light; maintain consistent moisture.
Medium
Well-draining potting mix with perlite or sand; can also use water propagation for cuttings.
Hormone
Rooting hormone is recommended to improve success rates.
Timeline
Roots may develop in 4–8 weeks; new growth may appear in 2–3 months.
Tools Needed
Pruning shears, rooting hormone, small pots, well-draining medium.
Quick Tips
Use healthy, non-flowering stems; maintain high humidity with a plastic cover; keep out of direct sun.
Pruning & Repotting
Pruning Guide
Method
Selective thinning and heading back to maintain shape and promote airflow.
Pruning Plan
Shape the plant, remove dead or diseased branches, and encourage bushier growth.
Tools
Pruning shears, loppers, gloves, disinfectant.
Checklist
Disinfect tools; prune dead/diseased wood; shape as desired; clean up debris.
Repotting Guide
Best Season
Early spring before the growing season begins.
Pot Size
Choose a pot one size larger (2–3 inches wider) than the current one.
Method
Remove plant gently; trim roots if necessary; place in new pot with fresh soil; water lightly.
Suggestions
Repot every 2–3 years or when roots fill the pot; necessary to refresh soil and provide space.
Checklist
Prepare new pot; trim roots if needed; use fresh soil mix; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; adjust for season.
How to Apply Water Properly
Water at the base of the plant, ensuring moisture reaches the root zone; water early in the morning to minimize evaporation; ensure excess water drains away to prevent waterlogging.
Watering Schedule Tips
Water deeply once the top inch of soil feels 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, yellowing, or wilting in cold; scorching or stunted growth in excessive heat.
Cold Stress
Slows growth, may cause leaf drop or dieback; vulnerable to frost damage in temperatures below 40°F (4°C).
Solution: Move to a sheltered location; provide frost protection; avoid cold drafts; mulch to insulate roots.
Hot Stress
Leaves may wilt, scorch, or drop; growth may slow due to excessive heat and water loss.
Solution: Provide shade during peak heat; increase watering; use mulch to retain soil moisture; ensure good air circulation.
Fertilizing Guide
Fertilizing Checklist
Check growth phase; use diluted fertilizer; apply to moist soil; rinse pot periodically.
Fertilizing Method
Use balanced liquid fertilizer diluted to half strength every 4–6 weeks during growing season (spring/summer); reduce or stop in fall/winter.
Common Problems & Solutions
Toxicity Warning
Cats
ToxicCats are susceptible to the toxic effects of Cassia javanica, particularly due to the anthraquinone glycosides present in the seeds, leaves, and bark. These compounds can cause severe gastrointestinal irritation and systemic effects, which may be more pronounced in cats due to their unique metabolic pathways.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
ToxicThe seeds, leaves, and bark of Cassia javanica are toxic to dogs due to the presence of anthraquinone glycosides. These compounds can cause severe gastrointestinal upset and may lead to dehydration or electrolyte imbalances if ingested in significant quantities.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
ToxicCassia javanica contains anthraquinone glycosides, which are known to have purgative effects on the human gastrointestinal tract. Ingestion can lead to severe gastrointestinal distress and potential systemic toxicity due to the absorption of these compounds.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: How tall does the Cassia javanica grow?
A: It can grow up to 20–30 meters tall in its natural habitat.
Q: Does it require full sun?
A: Yes, it thrives in full sun to partial shade.
Q: Is it suitable for small gardens?
A: No, due to its large size, it is best suited for spacious landscapes.
Quick Reference
| Family: | Fabaceae |
| Care: | moderate |
| Light: | partial shade to full sun |
| Water: | every 7–10 days during activ |
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