Tenterfield Bottlebrush (Callistemon sabrinus)

Tenterfield Bottlebrush

Callistemon sabrinus

A resilient evergreen shrub that paints the landscape with striking crimson bottlebrush blooms. Endemic Australian ornamental.

Requires full sun for optimal flowering and dense growth.
1/week
Easy
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Plant Needs

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Sunlight Requires full sun for optimal flowering and dense growth.
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Watering Drought-tolerant once established; water deeply once a week during dry spells.
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Temperature Tolerates moderate frost and high summer heat.
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Characteristics

  • Leaves: Narrow, lanceolate to linear, stiff, grey-green, with prominent oil glands;
  • Flowers: Dense cylindrical spikes resembling a bottlebrush, featuring bright red to crimson stamens;
  • Bark: Greyish-brown, becoming rough and slightly papery or fissured on older branches.
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Care Guide

Watering

Water deeply when the top few inches of soil dry out.

Fertilization

Apply a low-phosphorus organic mulch or compost.. Native Australian plants are sensitive to phosphorus; feed sparingly.

Banana Peel Tea:Steep banana peels in water for 24-48 hours. Dilute 1:1 with water and apply to the base. Avoid high-phosphorus materials like eggshells or bone meal, as native Australian plants are highly sensitive to phosphorus.
Pruning
  • Prune lightly immediately after flowering to remove spent flower heads;
  • Cut just behind the old flowers to encourage multiple new shoots;
  • Avoid cutting into old, leafless wood as it may not regenerate well;
  • Remove dead or crossing branches to maintain an open, healthy canopy.
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Non-toxic to cats per ASPCA guidelines for Callistemon species.

Humans: Generally considered non-toxic and safe for humans.

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Garden Uses & Culture

Culture: In Western landscaping, bottlebrushes are highly valued for their unique architectural form and their ability to attract nectar-feeding birds and pollinators to the garden.

Usage: - **Ornamental**: Excellent as a specimen plant, informal hedge, or screen; - **Ecological**: Highly effective at attracting bees, butterflies, and nectar-eating birds.