When to Plant Custard Apple in Sydney, Warm Temperate Guide
What this month normally looks like in Warm Temperate
In October the Warm Temperate zone normally runs 24°C by day and 13°C overnight, with about 66 mm of rain over 7 or 8 wet days. The coldest October night on record across the zone was -1.5°C, so a late frost is not out of the question. Averages 1991 to 2026, 153 postcodes, SILO.
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This Custard Apple guide is written for the Warm Temperate zone, which takes in Sydney, Newcastle and Wollongong. Somewhere else? Your postcode picks the right one.
Not your zone? Cairns Brisbane Melbourne Canberra Alice Springs Perth
Also handy: will it frost this week? and what grows in shade.
- Planting window
- Sep to Nov
- Sun
- Full sun
- Soil pH
- 6.6–7.3
Custard apple as grown in Australia is the atemoya, a cross of cherimoya and sugar apple; Pinks Mammoth and African Pride are the main Queensland types (Morton).
Published · By GardenBuddy.au
Planting dates, current conditions and prices on this page update daily.
Photo: Wikimedia Commons
Best Planting Window for Warm Temperate
- Jan -
- Feb -
- Mar -
- Apr -
- May -
- Jun -
- Jul -
- Aug -
- Sep P
- Oct P
- Nov P
- Dec -
P = Planting window
You might be able to grow it here under the right conditions. Daleys reviews report a reasonable crop at Kiama NSW and fruit in year two at Speers Point NSW, and in NSW the tree does best close to the coast (Morton). Young trees are killed at about minus 2 degrees (IFAS), so pick a frost free spot. Fruit months are our estimate from the Queensland season shifted later. Plant in spring after frost.
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How to Grow Custard Apple in Warm Temperate Australia
- Soil
- Fertile, sunny, well drained soil (Daleys). Intolerant of wet soil (IFAS); waterlogging is fatal (Morton). Mound up in clay.
- 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 (Daleys).
- Keep away from
- Frost pockets, Hot dry wind (Daleys), Wet or heavy soil (IFAS), Pond apple rootstock (NSW WeedWise)
Warm Temperate Growing Tips for Custard Apple
Recommended Varieties
- Pinks Mammoth (Daleys)
- Geffner, self pollinating (Daleys)
Key Challenges
- Frost on young trees
- Cool flowering weather
Pro Tips
- Plant against a warm north facing wall
- Cover young trees on frosty nights
Pests and problems for Custard Apple in Warm Temperate
Harvesting Custard Apple
When ready: Skin turns from green to yellowish green, the segments swell and flatten and a bloom appears on the skin (IFAS). Pick firm; fruit ripens off the tree at 18 to 24 degrees and will not ripen below 13 degrees (Custard Apples Australia).
How to harvest: Cut with a short stem, handle gently and let fruit soften at room temperature, then eat or refrigerate for 2 to 4 days (IFAS). Unripe fruit holds at 8 to 12 degrees for up to 5 days (Custard Apples Australia).
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 Custard Apple
When do you plant custard apple 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): Sep to Nov
- Cool Temperate (Melbourne): not recommended
- Cold / Highland (Canberra): not recommended
- Arid / Semi-Arid (Alice Springs): not recommended
- Mediterranean (Perth): Sep to Nov
When should I plant Custard Apple in Sydney?
You might be able to grow it here under the right conditions. Daleys reviews report a reasonable crop at Kiama NSW and fruit in year two at Speers Point NSW, and in NSW the tree does best close to the coast (Morton). Young trees are killed at about minus 2 degrees (IFAS), so pick a frost free spot. Fruit months are our estimate from the Queensland season shifted later. Plant in spring after frost.
How do I know when Custard Apple are ready to harvest?
Skin turns from green to yellowish green, the segments swell and flatten and a bloom appears on the skin (IFAS). Pick firm; fruit ripens off the tree at 18 to 24 degrees and will not ripen below 13 degrees (Custard Apples Australia).
What are the best Custard Apple varieties for Sydney?
Recommended varieties for the Warm Temperate zone include: Pinks Mammoth (Daleys), Geffner, self pollinating (Daleys).
Are custard apple salt tolerant?
No. Custard apple 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 Warm Temperate zone, Sydney is its reference city.