Water Spinach

Days to harvest

30–45 days

Sunlight

4–6 hours/day

Watering

1–2 per day

Plant spacing

15 cm

Minimum container size

15cm deep × 20cm wide

Container-friendly

4 plants per container

Estimated yield

300 kg / 100m²

Life span

annual

Climate Requirements

Ideal temperature

25-35 °C

Annual rainfall

2000-3000 mm

Humidity

70-90%

Heat tolerance

high

Drought tolerance

low

Thrives in tropical heat but needs consistent water. During El Niño dry periods, increase watering frequency to twice daily. Excellent urban crop — tolerates heat island effect well.

Soil & Planting

Companion Plants

• Spinachmoderate

  Similar water and nutrient needs; both thrive together in wet conditions and share pest pressure, reducing loss per crop

• Lemongrassmoderate

  Border planting of lemongrass deters aphids, caterpillars, and mosquitoes from the patch

• Spring Onionweak

  Allium scent repels leaf-feeding caterpillars common on kangkung

Plants to Avoid Nearby

• Bird's Eye Chili

  Chili prefers dry, well-drained soil while kangkung needs constant moisture — conflicting irrigation needs damage both crops

Common Pests & Diseases

Safety Notes

Rapid-growing leafy crop absorbs chemicals quickly. Use only approved pesticides for leafy vegetables. Observe strict 7-day PHI. Wash leaves multiple times before cooking. Prefer organic pest control.

Market Demand

Highest demand leafy green in Malaysia

Regional Notes

Grows extremely well; tolerates waterlogged soil

Sources

• Leafy Vegetables for Malaysian Climate — MARDI · Last reviewed: 2024-07-10