Science · Plants, Natives & Crops

Macadamia

An evergreen subtropical tree cultivated for its rich, hard-shelled edible kernels.

Macadamia integrifolia · tree nut

Profile

Site: Requires a warm, frost-free growing environment.
Site: Nuts mature on the tree before harvest.
Site: Good drainage supports healthy roots.
Site: Pests and diseases vary with production region.

Water & soil context

Moisture (VWC): Maintain consistent root-zone moisture, particularly during flowering and nut development; prevent waterlogging.
Salinity tolerance: Salt sensitivity not documented in cited pages.
Drought tolerance: Drought class not documented in cited pages.

Illustrative monitoring-depth band

6–12 in

Editorial placement example, not a validated optimum or total rooting depth. Confirm the site's root distribution and soil horizons; multiple depths may be needed.

Specific irrigation amounts and stress thresholds are not documented in the cited sources.

Problems to watch

Stink bugs
Macadamia felted coccid

Stress signs

Leaf yellowing or canopy decline
Damaged or prematurely dropped nuts

Where you'll find it

Edible kernels
Confectionery and snacks

Sources & scope

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Published botanical and soil references are distinct from GroundWorx product guidance. Moisture thresholds and monitoring depths require site calibration; sources do not establish product performance or diagnose stress.