When to Plant Peanut in Cairns — Tropical Guide
Photo: Wikimedia Commons
Not a nut at all - a legume related to beans. Annual crop sown in spring, harvested in autumn. After pollination, the flower stem (peg) grows downward into the soil where the pod develops underground. Needs a long, warm growing season (4-5 months frost-free). Easy to grow in warm zones with sandy soil. As a legume, fixes nitrogen and improves soil. Two main types: runner (spreading, commercial) and bunch/Spanish (compact, better for small gardens).
How to Grow Peanut in Tropical Australia
When to Plant
Plant October-December. Year-round possible but dry season harvest preferred.
- Soil
- Sandy to sandy loam ESSENTIAL. Peanuts form underground - heavy clay prevents peg penetration and makes harvest difficult. Loose, well-drained soil is non-negotiable.
- pH Range
- 5.8-6.5
- Sunlight
- Full sun. Maximum heat.
- Spacing
- 15-20 between plants, 50-60cm between rowscm apart
Companion plants: Corn, Squash (traditional Three Sisters-like combo), Sweet potato
Avoid planting near: Nothing specific
Tropical Growing Tips for Peanut
Recommended Varieties
- Virginia Bunch
- Spanish types
- Runner types
Key Challenges
- Aflatoxin risk in wet harvest conditions
- Leaf diseases
Pro Tips
- FNQ (Atherton Tablelands, Kingaroy) is commercial peanut country.
- Harvest during dry weather for best quality.
Harvesting Peanut
When ready: Plant yellows and begins to die back naturally. Pull a test plant - pods should have dark-veined inner shell and mature kernels. Shell interior colour indicates maturity (dark = mature, white = immature).
How to harvest: Pull entire plant from soil (loosen with fork first). Shake off soil. Check pods are mature. Hang plants upside down in dry, ventilated area for 1-2 weeks to cure.
Expected yield: 20-40 pods per plant depending on type
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