PlantFun
Plant Needs
Sunlight
Requires full sun for optimal fruiting; tolerates partial shade but reduces flower and nut production
Watering
Water deeply and infrequently; allow the top 15 cm of soil to dry completely between waterings to avoid root rot
Temperature
Thrives in 20–30℃; cannot tolerate frost; protect from temperatures below 10℃ to prevent leaf damage
Characteristics
- Leaf: Simple, obovate, leathery, glossy green; clustered at branch tips
- Flower: Small, pale yellow to pinkish panicles; lightly fragrant
- Fruit: Fleshy false "cashew apple" (yellow/red) with true nut hanging at its base
Care Guide
Watering
Keep soil consistently moist during active growth and fruiting; avoid waterlogging the root zone
Fertilization
Apply balanced, slow-release fertilizer every 2 months. Avoid over-fertilizing, as excessive nitrogen can reduce fruiting
Banana peel compost tea：Use fully composted banana peels; dilute 1:20 with water for root drenching; avoid applying directly to foliage to prevent fungal growthPruning
- Prune dead, diseased, or damaged branches in early spring before new growth emerges
- Thin overcrowded inner branches to improve airflow and light penetration to the canopy
- Shape the canopy to maintain a manageable size; remove suckers to direct energy to the main trunk and fruiting branches
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Toxic; ingestion of raw shell or unprocessed parts causes oral irritation, vomiting, and diarrhea
Humans: Raw shell contains urushiol oil which causes skin rash/blisters; processed nuts are safe for consumption
Garden Uses & Culture
Culture: Symbolizes tropical abundance and sustenance in Caribbean and South American cultural traditions
Usage: Processed nuts are a global culinary staple; cashew apples are used to make jams, juices, and alcoholic beverages; wood is used for furniture and firewood
