Acacia aneura

A compact Australian tree with striking yellow rod-shaped blooms, ideal for small desert patios and tight spaces.
Hardy to roughly 18-20Β°F, suited to low and mid desert; a warm-climate Australian native that appreciates protection from hard frost while young.
AMWUA Notes
Drought tolerant once established; avoid frequent shallow watering, which produces weak growth.
Deep-soak weekly through the first summer to establish, then a deep soak every 2-3 weeks in summer heat and monthly in winter.
Needs little pruning; remove lower limbs to raise the canopy and thin lightly for shape in late winter after bloom.
No fertilizer needed; as a nitrogen-fixing acacia it makes its own in lean desert soil.
Largely pest-free in the desert.
Yellow rod-shaped flowers appear in spring; the gray-green phyllodes are evergreen year-round.
Deep, well-draining native, sandy, or decomposed-granite soil; tolerates caliche, rocky ground, and alkaline pH 7.5β8.5
Needs well-drained soil.
None β thrives in lean desert soil without fertilizer.
Grown from scarified seed; nursery-grown transplants establish readily in fall or spring
10β15 ft
Deep, non-aggressive roots; safe near pools, patios, and foundations at 6β8 ft
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Data from 2024 AMWUA βLandscape Plants for the Arizona Desertβ guide.