Tar Bush (Eremophila glabra)

Tar Bush

Eremophila glabra

Silvery foliage glows in arid sun, a tough desert beauty. Evergreen flowering shrub; common names: Tar Bush, Emu Bush.

Full sun
1/week
Beginner
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Plant Needs

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Sunlight Full sun exposure preferred; tolerates partial shade in extreme heat to prevent foliage scorch
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Watering Drought-tolerant; water deeply but infrequently, allowing soil to fully dry between waterings
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Temperature Hardy to light frost; thrives in hot, low-humidity arid conditions
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Characteristics

  • Leaf: Narrow linear to oblong leaves; silvery-grey, leathery, aromatic when crushed
  • Flower: Tubular pink, purple, white or yellow flowers clustered in leaf axils
  • Stem: Woody branching stems; covered in fine hairs during juvenile growth
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Care Guide

Watering

Water every 7–10 days during extended dry spells; avoid wetting foliage

Fertilization

Diluted low-phosphorus feed once every 2 months. Use slow-release, low-phosphorus fertilizer to support flowering without damaging roots

Eggshell powder topdressing:Crush dried eggshells into fine powder; sprinkle lightly on soil surface to boost calcium levels and improve soil drainage
Pruning
  • Prune lightly immediately after flowering to maintain compact shape and encourage new growth
  • Remove dead or damaged branches to improve airflow and reduce disease risk
  • Avoid heavy pruning as it may reduce flowering in subsequent seasons
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No listed toxicity to cats

Humans: No documented toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental xeriscaping; traditional Aboriginal medicinal use for coughs and minor skin irritations