Common Spikethorn (Gymnosporia buxifolia)

Common Spikethorn

Gymnosporia buxifolia

Dense, spiny evergreen with delicate white blooms. Compact shrub; common name: Common Spikethorn.

Full sun
1/week
Beginner
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Plant Needs

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Sunlight Prefers full sun to partial shade; tolerates drought once established
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Watering Water deeply only when top 5–7 cm of soil is fully dry; avoid waterlogging
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Temperature Hardy to -5°C; tolerant of hot, arid summer conditions
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Characteristics

  • Leaf: Small, leathery obovate to elliptical leaves; glossy dark green
  • Flower: Clusters of fragrant, tiny white star-shaped blossoms
  • Stem/Bark: Thorny branches with sharp paired spines at leaf nodes
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Care Guide

Watering

Water every 7–10 days; allow soil to dry completely between waterings

Fertilization

Feed once monthly with diluted balanced fertilizer. Discontinue fertilization in autumn and winter to support dormancy

Eggshell powder topdress:Crush dried eggshells into fine powder; sprinkle lightly on soil surface and gently work into top layer to avoid odor or pest issues
Pruning
  • Trim overgrown branches in late winter to maintain compact, rounded shape
  • Remove dead, diseased, or damaged wood to improve airflow
  • Thin dense inner branches to encourage light penetration and flowering
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: No documented toxic effects on cats (ASPCA unlisted; no confirmed toxicity)

Humans: No documented toxic effects on humans

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Garden Uses & Culture

Culture: N/A

Usage: Hedge plant, wildlife shelter for birds, ornamental garden shrub