Guava
Psidium guajava

Hardy, fast-growing small tree; dwarf varieties suit large pots.
๐ Light & Temperature
Light: Full sun
Temperature: 22โ34ยฐC
๐ชด Pot & Soil
Pot: 60โ90 L pot for dwarf types; prune to 1.5โ2 m.
Soil Mix: Well-drained loam: 40% loam, 30% compost, 20% coco coir, 10% sand; pH 5โ7
๐ง Watering
Schedule: Dry season: 2โ3x/week; Rainy season: weekly if no rain
Amount: 4โ6 L per watering
Deep water; let top 4โ6 cm dry between waterings.
๐งช Fertilizing
Type: Balanced fruit tree fertilizer (e.g., NPK 12-12-17) plus micronutrients
Frequency: Monthly during growth; reduce in rainy periods
Dosage: 60โ80 g/month for 60โ90 L pot; add trace elements quarterly
๐ Fruiting & Harvest
Start: 8โ12 months for grafted/dwarf types
Seasonality: Year-round; main flushes after pruning
Duration: 90โ120 days from flower to harvest
Harvest Indicators: Fruit turns from dark to light green/yellow; aromatic; yields slightly to pressure
Tips: Bag fruits to prevent fruit fly; harvest slightly immature for crunchy texture.
๐ฑ Propagation
Air-layering or grafted plants preferred for fruit quality.
๐ Pests & Diseases
- Fruit flies: Bag fruits (paper/mesh) at marble size; use protein bait traps.
- Mealybugs: Neem oil 1% weekly; prune ant bridges.
๐ฆ๏ธ Seasonal Notes (Malaysia)
Prune lightly after each harvest flush to encourage new fruiting wood.
๐ Planting Notes
Install sturdy stakes; thin fruit for larger size.
๐ก Extra Care Tips
- Mulch to keep roots cool
- Do not over-fertilize nitrogen (reduces sweetness)
Note
Schedules are guidelinesโadjust for your microclimate, pot size, and weather. During heavy monsoon rain, reduce watering and improve drainage.