Macadamia integrifolia MACADAMIA NUT (2 seeds)

Macadamia, also known as Queensland Nut or Macadamia integrifolia, is a large tropical tree belonging to the Proteaceae family. Native to Australia, it can reach up to 15 meters in height. It is now cultivated throughout the tropics worldwide. Its growth is rapid during the first five years before slowing down.

It features dense, glossy evergreen foliage with leathery, elliptical leaves that are dark green and measure between 8 and 25 cm.

The flowering is an impressive spectacle: clusters of small, tubular, white-to-cream flowers appear from late spring to summer, releasing a delicate, sweet fragrance that attracts bees.

The fruits are prized natural treasures: hard-shelled nuts (3 to 5 cm in diameter) encased in a green husk that splits at maturity to reveal a buttery, nutrient-rich kernel.

Macadamia seeds (nuts) are round, smooth, and light brown with an extremely robust shell.

- Uses:

Culinary: With a rich, buttery flavor, the white kernel is a gourmet ingredient. It is a favorite in desserts like cookies, cakes, and ice cream. It can also be added to salads or pasta for a crunchy contrast.

Cosmetics: Macadamia oil is highly popular for its hydrating and nourishing properties. It penetrates the skin easily, improving elasticity and protecting against dehydration. Its anti-inflammatory properties make it excellent for soothing sensitive or irritated skin.
Do not use for medicinal purposes without seeking medical advice.

- Germination and Sowing:

• The best period to sow Macadamia nuts is from June to late July, as they require significant heat to germinate.
• Sand the hard shell with sandpaper until you can just see the cotyledon.
• Soak the seeds for 24 hours in warm water to accelerate germination.
• Bury the seeds under 1 cm of moist peat-based substrate.
• Place the pot in a warm, humid spot, ideally between 30°C and 35°C.
• Germination typically begins 4 to 8 weeks after planting.

- Substrate / Soil Type:

This Australian tree requires well-drained, light soil rich in organic matter. A slightly acidic to neutral pH is ideal. Avoid compact, clay-heavy soils that retain too much water.

- Exposure / Sunlight:

The Macadamia like full sun and needs at least 6 to 8 hours of direct light per day. Plenty of sunlight is essential for nut production and healthy development.

- Temperature / Hardiness:

Being a (sub)tropical species, it is sensitive to frost. It thrives in temperatures between 20°C and 30°C. Below 5°C, the tree may suffer damage; it must be protected in regions with harsh winters.

- Watering / Water Needs:

Regular watering is necessary, especially during dry spells and for young trees. The soil should remain moist but never waterlogged, as the roots are prone to rot.

- Reproduction / Multiplication:

It can be propagated by seeds or cuttings (using semi-hardwood stems in a light substrate). Grafting is also a common professional method used to preserve specific variety characteristics.

- Pests / Diseases:

While relatively resistant, it can be attacked by scale insects, aphids, and red spider mites. Excessive humidity may lead to fungal diseases on the leaves.