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Last edited on 3 Feb 2024. View history

Quandong

Also known as desert quandong (en) native peach (en)

How to sow quandong: Direct seed

Sun requirement for quandong: Plant in Full Sun

Quandong, or Desert Quandong, is tall evergreen shrub or small tree in the Sandalwood (Santalaceae) family. It is native to the central deserts and southern parts of Australia. The trunk has dark gray bark and leathery ovate leaves. Flowers are 2-3 mm in diameter, fragrant, white or green on the outside, and red or brown on the inside. Plants produce round red or yellow fruit after they are 4 years old. Fruit are 2-3 cm across and look like a brain once their hard, waxy shell is removed. They have a tart flavor similar to peach, apricot, or rhubarb. Quandong are high in Vitamin C and are a popular bushfood. They are also used as exotic flavoring. The plants are hemi-parasitic: they can photosynthesize, but acquire nutrients beyond sugars from the root systems of other plants like grasses and trees without harming the host plants. Propagation can be tricky. Direct seed in a pot after soaking and partially cracking three-year old seeds with a vice or nutcracker (older seeds have a higher germination rate). Germination can take 1-4 months at ideal temperatures of 15° C. Transplant seedlings outside within 10 m of a host plant such as a local, indigenous grass or flowering pea plant.

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Quandong facts

Lifespan

Annual living and reproducing in a single year or less

Height × spread

600cm × 400cm
Optimal temperature 18–25 °C
Absolute temperature 5–40 °C
FAO EcoCrop
Optimal rainfall 250–400 mm/year
Absolute rainfall 125–500 mm/year
FAO EcoCrop
Optimal soil pH 7–8
Absolute soil pH 6.5–8.5
FAO EcoCrop

Crop cycle

60–180 days
FAO EcoCrop

Max altitude

500 m
FAO EcoCrop

Optimal light

very bright to clear skies
FAO EcoCrop
What are growing degree days?

A plant grows with warmth, not with days. A growing degree day is one day's worth of useful warmth: how many degrees the day's average temperature is above the lowest temperature the crop grows at. Add them up from planting and you know how far along the crop is, whatever the calendar says.

Say that lowest temperature is 10°C. A day averaging 17°C gives 7 growing degree days. A day averaging 8°C gives none, as it is too cold for the crop to grow. That is why the same lettuce takes about 50 days in a summer and 90 in an autumn: it needs the same total warmth either way.

For quandong, the FAO EcoCrop database gives a lowest growing temperature of 5°C and a shortest growing cycle of 60 days at its best temperature, about 990 growing degree days to a first harvest.

Where you've told us where your garden is, we use this and the weather there to predict when your quandong will be ready to harvest. We don't use it for how long a plant lives or when it finishes: we go by what members have logged for that.

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Ecological requirements

Data from the FAO EcoCrop database for Santalum acuminatum

Family / Taxonomy Magnoliopsida
Rosidae
Santalales
Santalaceae
Killing temperature growth: 0 °C, rest: -2 °C
Life form shrub, tree
Life span perennial
Habit erect
Optimal soil depth deep (>>150 cm)
Optimal soil texture medium
Optimal soil fertility low
Optimal soil drainage well (dry spells)
Optimal soil salinity low (<4 dS/m)
Photoperiod short day (<12 hours)

Learn more about quandongs

Resources outside Growstuff.