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Macadamia – Macadamia integrifolia

Macadamia

Macadamia integrifolia
The hardest nut is the healthiest.
Edible value8Medicinal value2Other uses2
Tree10×10 mzone 9–12full sun🍎 Edible

Will it grow where I live?

Macadamia is not winter-hardy in Central Europe (zone 9): outdoors from spring to autumn only, otherwise a container plant overwintered frost-free. It also needs warm summers – in Central Europe that means wine-growing regions, cities or a sheltered south-facing wall.

Or check it for your location right here:

Winter hardiness by USDA zone, summer warmth by heat sum – the same values the app and the plant finder use.

Profile

Family
Proteaceae
Habit
Tree
Height
10 m
Spread
10 m
Growth
slow
Lifespan
120 years
First yield
after 8 years
Full yield
after 14 years
Productive years
40 years
Yield per plant
up to 50 kg a year
Yield in cultivation
up to 5 t/ha
Energy yield
800 kcal per m² a year
Hardiness
zone 9–12
Shade tolerance
full sun
Soil
Sand, Silt, Loam
Soil moisture
semi-dry – very wet
pH
4.5 – 6.5
Synonyms
Maiden.&Betche.
evergreennectar source

Flowering & harvest

J F M A M J J A S O N D
Flowering
Fruit harvest

Times apply to the northern hemisphere in a temperate climate and shift with altitude and cultivar.

Varieties (13)

13 varieties of Macadamia are listed in the Permaplans variety finder — each with its own page: taste, ripening time, disease resistance, parentage and use.

Uses

Edible8 of 10
Medicinal2 of 10
Other uses2 of 10

Edible: Seeds (raw, cooked) (cakes, cookies, ice cream) (flour, grains) (oil)

Growing

Pflanzen gedeihen am besten in nährstoffreichen, feuchten Böden und benötigen in der Anfangsphase im Sommer reichlich Wasser. Etablierte Pflanzen sind jedoch sehr trockenheitsresistent. Bäume benötigen einen geschützten Standort und werden durch starken Wind leicht beschädigt. Pflanzen können in kühleren Klimazonen als ihrem natürlichen Lebensraum angebaut werden, sind in Großbritannien aber nicht sehr winterhart. Sie überstehen jedoch leichten Frost und sind auf den Scilly-Inseln im Freien erfolgreich gewachsen. Optimales Wachstum findet bei Temperaturen zwischen 20 und 25 °C statt; das Wachstum kommt zum Erliegen, wenn die Temperaturen unter 10 °C oder über 30 °C steigen. Kaltes Wetter kann zum Totalausfall der Ernte führen. Die Macadamianuss wird in vielen tropischen und subtropischen Gebieten wegen ihrer essbaren Samen angebaut; es gibt einige Sorten. Die Pflanzen wachsen langsam; Sämlinge benötigen 6–7 Jahre, um die ersten Früchte zu tragen. Die Bäume liefern dann etwa 40–50 Jahre lang kommerziell nutzbare Früchte und können bis zu 100 Jahre lang Früchte tragen. Ein Rückschnitt ist normalerweise nicht notwendig, wird aber im Herbst toleriert. Diese Art wurde früher als Teil von M. ternifolia betrachtet.

Origin & habitat

Australia - New South Wales, Queensland.

Trockene Regenwälder des östlichen Küstenbuschs.

⚠️ Hazards

Nuts are toxic to dogs and cats.

This is no substitute for expert identification. When in doubt, do not eat it.

Frequently asked questions

Macadamia: how big does it get?

Macadamia (Macadamia integrifolia) grows as a Tree and reaches roughly 10 m in height when mature, with a spread of about 10 m. Growth is slow.

Macadamia: what site does it need?

Macadamia tolerates full sun. Suitable soils are Sand, Silt, Loam. Soil moisture should be in the range semi-dry – very wet. The pH may lie between 4.5 and 6.5.

Macadamia: is it hardy?

Macadamia is listed as hardy in zone 9–12 and survives normal winters outdoors there.

Macadamia: will it grow in Central Europe?

Macadamia is not winter-hardy in Central Europe (zone 9): outdoors from spring to autumn only, otherwise a container plant overwintered frost-free. It also needs warm summers – in Central Europe that means wine-growing regions, cities or a sheltered south-facing wall.

Macadamia: when does it flower?

In a temperate northern-hemisphere climate it flowers from March to April.

Macadamia: when is it harvested?

In a temperate northern-hemisphere climate the fruit ripens from August to November.

Macadamia: when does it start cropping, and how much?

Macadamia first crops after 8 years. Full yield comes after 14 years. A mature plant gives up to 50 kg a year, in cultivation up to 5 t per hectare. The productive period lasts about 40 years, within a lifespan of around 120 years. Figures assume a good site; variety, soil and climate shift them considerably.

Macadamia: is it poisonous?

No toxicity is recorded for Macadamia. With wild plants, never rely on a database alone — only on a confident identification.

Macadamia: what is it used for?

Rated on a scale up to 10: Edible 8/10, Medicinal 2/10, Other uses 2/10.

Which Macadamia varieties are there?

The Permaplans variety finder lists 13 varieties of Macadamia, including 246, 344, 660, 741, 800, 816, 849, A16, A38, A4, Beaumont, Daddow and 1 more. Each variety has its own page with taste, ripening time, disease resistance and parentage.

Community experience

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