Red Sandalwood (Pterocarpus santalinus)

Red Sandalwood

Pterocarpus santalinus

Deep red heartwood holds timeless craft and medicinal value. Slow-growing evergreen tree; common name: Red Sandalwood.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Requires full sun to partial shade; tolerates prolonged sunny, dry conditions
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Watering Water deeply but infrequently; drought-tolerant once established
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Temperature Thrives in warm tropical to subtropical climates; sensitive to frost and temperatures below 10°C
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Characteristics

  • Leaf: Alternate, pinnately compound; leaflets ovate, glossy green with smooth margins
  • Flower: Small, pea-like yellow blooms in terminal racemes with subtle fragrance
  • Stem/Bark: Grey-brown rough outer bark; mature heartwood is dense, deep red
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Care Guide

Watering

Water regularly during extended dry spells; avoid waterlogging

Fertilization

Apply balanced organic feed once at the start of growing season. Avoid over-fertilization to prevent weak wood growth

Composted banana peel tea:Steep 2–3 fully composted banana peels in 1L water for 3 days; dilute 1:10 for root drench; discard solids to avoid pest infestations and odor
Pruning
  • Remove dead or diseased branches in late winter before new growth emerges
  • Thin crowded inner branches to improve airflow and light penetration
  • Avoid heavy pruning; maintain the tree's natural rounded canopy shape
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No listed toxicity to cats

Humans: No known toxic effects from ingestion or contact

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Garden Uses & Culture

Culture: Valued in traditional Indian Ayurveda for anti-inflammatory properties; symbolizes longevity and spiritual purity

Usage: Premium heartwood for carvings, incense, and medicinal extracts; ornamental shade tree