When to Plant Beans - Climbing in Perth — Mediterranean Guide
Climbing beans are warm-season legumes that produce heavily over a long season when given a suitable support structure. They include common pole beans (P. vulgaris) and scarlet runner beans (P. coccineus). Runner beans tolerate cooler conditions than common beans. Both fix atmospheric nitrogen via Rhizobium bacteria in root nodules, improving soil fertility.
Planting Calendar
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| S/T/D | S/T/D | — | — | — | — | — | — | S | S/T/D | S/T/D | S/T/D |
S = Seed Tray T = Transplant D = Direct Sow
Current Growing Conditions
Soil temperature: 21.9°C (optimal range: 16–30°C) ✓ Ready to plant
How to Grow Beans - Climbing in Mediterranean Australia
When to Plant
Sow October-January. Perth and Adelaide have excellent conditions for climbing beans. Hot, dry summers suit beans well if watered.
- Soil
- Well-drained, fertile loam enriched with compost. Avoid freshly manured soil (excess nitrogen causes leaf growth at expense of pods).
- pH Range
- 6.0-7.0
- Sunlight
- Full sun (minimum 6 hours, preferably 8 hours)
- Spacing
- 15cm apart, 80cm between rows
- Watering
- Regular deep watering during flowering and pod set is critical. Inconsistent watering causes flower drop and tough, stringy pods. Water at base, avoid wetting foliage.
Companion plants: Corn, Squash, Marigold, Radish, Carrot
Avoid planting near: Onions, Garlic, Fennel, Beetroot
Mediterranean Growing Tips for Beans - Climbing
Recommended Varieties
- Blue Lake
- Scarlet Runner
- Purple King
- Lazy Housewife
- Borlotti (climbing)
Key Challenges
- Summer drought stress without irrigation
- Occasional heatwaves causing flower drop
Pro Tips
- Beans do very well in Mediterranean climates with adequate water
- Install drip irrigation for consistent moisture during pod set
- Borlotti types are excellent dried bean options for this climate
Harvesting Beans - Climbing
When ready: Green beans: pods snap crisply when bent, seeds inside are small and immature, pod surface is smooth (not lumpy from enlarged seeds). Shell/dry beans: leave on vine until pods are brown and papery, seeds rattle when shaken.
How to harvest: Hold the stem with one hand and pull the pod with the other to avoid breaking branches. Use scissors for tough stems. Harvest green beans every 2-3 days. For dry beans, cut entire vine and hang upside down to finish drying.
Common Beans - Climbing Pests in Mediterranean Zones
Organic prevention: Sow thickly and thin later (compensate for losses). Apply neem-based soil drench at sowing time. Crop rotation - do not follow beans with beans. Mulch well.
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