When to Plant Carambola in Alice Springs, Arid / Semi-Arid Guide
What this month normally looks like in Arid / Semi-Arid
In October the Arid / Semi-Arid zone normally runs 32°C by day and 16°C overnight, with about 19 mm of rain over 2 or 3 wet days. The coldest October night on record across the zone was 1.9°C, so a late frost is not out of the question. Averages 1991 to 2026, 10 postcodes, SILO.
Jump to section
This Carambola guide is written for the Arid / Semi-Arid zone, which takes in Alice Springs, Broken Hill and Port Augusta. Somewhere else? Your postcode picks the right one.
Not your zone? Cairns Brisbane Sydney Melbourne Canberra Perth
Also handy: will it frost this week? and what grows in shade.
- Sun
- Full sun
- Soil pH
- 6.6–7.3
Carambola, or star fruit, is a small evergreen tree of 3 to 5 m, or 2 to 3 m pruned, for warm humid tropical and subtropical gardens, with waxy yellow ribbed fruit that cuts into stars (Daleys).
Published · By GardenBuddy.au
Planting dates, current conditions and prices on this page update daily.
Photo: Wikimedia Commons
Best Planting Window for Arid / Semi-Arid
Carambola is not recommended for Arid / Semi-Arid.
Hot dry winds have killed carambola trees (Morton) and the tree wants rich moist soil in a warm humid climate. No source shows it in an arid garden.
Want a nudge when it is sowing time?
One email a week with what is worth planting in the Arid / Semi-Arid zone right now, Carambola included, plus which veg has jumped in price at the supermarket. Free, and you can stop it in one click.
How to Grow Carambola in Arid / Semi-Arid Australia
- Soil
- Rich moist soil with compost and manure, mulched (Daleys); pH 4.5 to 7 (IFAS); no flooding (Morton).
- Salt
- Sensitive. Struggles with salty bore water or salty soil. Give it rainwater if you can.
- pH Range
- 6.6-7.3
- Sunlight
- Full sun, sheltered from constant wind (IFAS).
- Keep away from
- Windy sites (IFAS), Wet ground (Morton), Limestone soil (Morton)
Arid / Semi-Arid Growing Tips for Carambola
Key Challenges
- Hot dry wind
Pests and problems for Carambola in Arid / Semi-Arid
Harvesting Carambola
When ready: Pick when the furrows turn yellow and only the rib tips are still green; fruit gains no sugar after picking (IFAS).
How to harvest: Clip the fruit with a short stem and handle gently; the ribs bruise.
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 Carambola
When do you plant carambola in Australia?
It depends on your climate zone, not the calendar month alone. Planting months by zone:
- Tropical (Cairns): Jan to Mar, Nov to Dec
- Subtropical (Brisbane): Jan to Feb, Sep to Dec
- Warm Temperate (Sydney): Oct to Nov
- Cool Temperate (Melbourne): not recommended
- Cold / Highland (Canberra): not recommended
- Arid / Semi-Arid (Alice Springs): not recommended
- Mediterranean (Perth): not recommended
When should I plant Carambola in Alice Springs?
Hot dry winds have killed carambola trees (Morton) and the tree wants rich moist soil in a warm humid climate. No source shows it in an arid garden.
How do I know when Carambola are ready to harvest?
Pick when the furrows turn yellow and only the rib tips are still green; fruit gains no sugar after picking (IFAS).
Are carambola salt tolerant?
No. Carambola 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 Arid / Semi-Arid zone, Alice Springs is its reference city.