Macadamia A38

A38 is a grafted macadamia cultivar chosen for its large nut size, excellent kernel quality, and reliable yields. It produces medium to large nuts with a strong shell, making it more suited to orchard setups or growers who prefer long storage life. The tree has a dense canopy and can grow vigorously, so it's best managed with pruning if grown in small spaces. Dwarfing, more suitable for pots and smaller spaces and very early fruiting.

Features

Ideal prune height: 2–3.5 m

pH range: 5.5–6.5

Sun preference: Full sun

Minimum pot size year 5: 45 L

Time to fruit: 3–5 years (grafted)

Harvest period: March to June

Notable traits: Large nut size, firm shell, good storage life, productive variety

A38 prefers rich, well-drained soil with compost and trace elements like calcium and boron. Mulch well, water regularly in dry periods, and avoid heavy clay or soggy conditions. In windy areas, its dense growth makes it more wind-tolerant than upright types, but pruning improves airflow and light penetration.

A solid choice for serious macadamia lovers who want a hardy, productive tree with excellent nut quality. A38 is especially good for processing or long-term storage thanks to its thicker shell.

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