When to Plant Dwarf Beans in Cairns, Tropical Guide
Soil temperature is modelled from Open-Meteo forecast (Cairns), not a live sensor.
What this month normally looks like in Tropical
In October the Tropical zone normally runs 34°C by day and 23°C overnight, with about 53 mm of rain over 5 or 6 wet days. Averages 1991 to 2026, 37 postcodes, SILO.
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This Dwarf Beans guide is written for the Tropical zone, which takes in Cairns, Townsville and Darwin. Somewhere else? Your postcode picks the right one.
Not your zone? Brisbane Sydney Melbourne Canberra Alice Springs Perth
Also handy: will it frost this week? and what grows in shade.
- Planting window
- Apr to Aug
- Days to harvest
- 55 days
- Sun
- Full sun
- Water
- Regular
- Spacing
- 10 cm apart
- Soil pH
- 6.0–7.0
- Shop price
- $14.67/kg at one shop
Dwarf or bush beans are compact, self-supporting plants that produce a concentrated harvest over 3-5 weeks. They require no staking and are ideal for small spaces, containers and succession planting.
Published · By GardenBuddy.au
Planting dates, current conditions and prices on this page update daily.
Planting Calendar for Tropical
- Jan -
- Feb -
- Mar -
- Apr D
- May D
- Jun D
- Jul D
- Aug D
- Sep -
- Oct -
- Nov -
- Dec -
S = Seed Tray T = Transplant D = Direct Sow
Want a nudge when it is sowing time?
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How to Grow Dwarf Beans in Tropical Australia
- Soil
- Well-drained, moderately fertile loam with compost. Avoid heavily manured soil.
- Salt
- Sensitive. Struggles with salty bore water or salty soil. Give it rainwater if you can.
- pH Range
- 6.0-7.0
- Sunlight
- Full sun (minimum 6 hours)
- Spacing
- 10cm apart, 45cm between rows
- Watering
- Regular consistent moisture during flowering and pod set. Water deeply 2-3 times per week rather than daily light watering. Avoid wetting foliage to reduce fungal issues.
- Good companions
- Lettuce, Cucumber, Carrot, Sweet Corn, Radish
- Keep away from
- Chickpeas, Fennel, Tree Onion
- Grow before it
- Roots and alliums (Carrot, Beetroot, Onion)
- Grow after it
- Leafy greens and brassicas (Lettuce, Silverbeet, Broccoli)
Give the bed 3 turns before legumes go back in. Beans and peas fix nitrogen, so they leave the bed richer than they found it.
Tropical Growing Tips for Dwarf Beans
Recommended Varieties
- Hawkesbury Wonder
- Provider
- Bountiful
- Strike
Key Challenges
- Bean fly year-round
- Wet season fungal diseases
- Heat stress above 35C
Pro Tips
- Dry season is the sweet spot for bush beans in the tropics
- Consider snake beans as an alternative in the wet season. More heat and humidity tolerant
- Short crop cycle (7-10 weeks) makes bush beans ideal for succession planting between longer-term crops
Pests and problems for Dwarf Beans in Tropical
- Tomato Spotted Wilt Virus Watch
- Helicoverpa / Corn Earworm / Tomato Grub Watch
- Botrytis (Grey Mould) Watch
- Green Vegetable Bug Watch
- Mosaic Viruses Watch
- Root-knot Nematode Watch
- Bean Rust Rotate beans for at least 2 years. Clear crop debris after harvest. Do not save seed from affected plants. Water at the base. Choose... Watch
- Damping Off Use sterile seed-raising mix. Avoid overwatering seedlings. Ensure good drainage and airflow. Sow thinly. Water with chamomile tea as... Watch
- Bean fly year-round Bean fly year-round Watch
- Wet season fungal diseases Wet season fungal diseases Watch
Harvesting Dwarf Beans
When ready: Pods snap crisply when bent. Seeds inside are small and immature (pods not lumpy). Pods are full-length for variety but still tender.
How to harvest: Hold stem with one hand, pull pod gently with other. Or use scissors. Harvest every 2-3 days.
Storing and preserving dwarf beans
How to keep it
- Freezing. Top and tail beans. Blanch in boiling water for 3 minutes. Ice bath for 3 minutes. Drain, pat dry, flash-freeze on tray, transfer to freezer bags. Keeps: 12 months.
- Dehydrating. Blanch 3 minutes, drain. Arrange on dehydrator trays. Dry at 60C for 8-14 hours until brittle. Store in airtight jars. Rehydrate in water for 30 minutes before use. Keeps: 12 months.
- Fermented (Lacto-fermented Beans). Trim beans to fit jars. Pack tightly with garlic and dill. Dissolve 2 tbsp salt in 1L water. Pour brine over beans ensuring complete submersion. Weight down. Ferment at room temperature 5-7 days until sour. Refrigerate. Keeps: 3-6 months refrigerated.
- Pickling (Dilly Beans). Pack whole trimmed beans vertically into sterilised jars with dill, garlic, chilli. Pour hot vinegar brine (500ml vinegar, 500ml water, 2 tbsp salt). Process 10 minutes in boiling water bath. Keeps: 12 months.
Canning safety. Low-acid vegetables like dwarf beans must be pressure canned, never water-bath canned.
Grow vs buy
A 2.4 m × 1.2 m bed fits 17 plants, about $125 worth at today’s Coles prices, checked today.
That is roughly 9 kg at $14.67 a kilo.
Draw your dwarf beans bed → No account needed.
What dwarf beans costs in the shops right now, retailer by retailer, updated daily.
What members get
- Soil and weather from your nearest station
- An email when it's time to sow
- Your own garden plan, including planning from a photo
- Price history and price alerts
- Pest risk alerts for your area
- Full salt and canning detail
Common Questions About Dwarf Beans
When do you plant dwarf beans in Australia?
It depends on your climate zone, not the calendar month alone. Planting months by zone:
- Tropical (Cairns): Apr to Aug
- Subtropical (Brisbane): Jan to Mar, Aug to Dec
- Warm Temperate (Sydney): Jan to Feb, Sep to Dec
- Cool Temperate (Melbourne): Jan, Nov to Dec
- Cold / Highland (Canberra): Jan, Nov to Dec
- Arid / Semi-Arid (Alice Springs): Jan to Mar, Aug to Sep
- Mediterranean (Perth): Jan to Mar, Sep to Dec
Can you grow dwarf beans all year round in Cairns?
No. In the Tropical zone the planting months are Apr to Aug. Outside that window it either bolts, sulks or gets cut down by the weather.
When should I plant Dwarf Beans in Cairns?
Sow direct every three weeks through the dry season for a steady supply. Wet-season sowings suffer fungal disease.
What soil temperature do Dwarf Beans need?
Dwarf Beans germinate best when soil temperature is between 16°C and 30°C.
How do I know when Dwarf Beans are ready to harvest?
Pods snap crisply when bent. Seeds inside are small and immature (pods not lumpy). Pods are full-length for variety but still tender.
What are the best Dwarf Beans varieties for Cairns?
Recommended varieties for the Tropical zone include: Hawkesbury Wonder, Provider, Bountiful, Strike.
What grows well with Dwarf Beans?
Good companion plants for Dwarf Beans include: Lettuce, Cucumber, Carrot, Sweet Corn, Radish.
Are dwarf beans salt tolerant?
No. Dwarf beans are salt-sensitive, one of the more sensitive veggies. Use rainwater if your bore water is salty, or grow them in a raised bed of fresh mix if your soil is.
Which zone am I in?
Type your postcode into the box near the top of the page and it tells you, and links this crop in your own zone if it differs. Or look it up on the grow zone map. This page is the Tropical zone, Cairns is its reference city.