Jerusalem Thorn (Paliurus spina-christi)

Jerusalem Thorn

Paliurus spina-christi

Sharp spines guard delicate blooms, a symbol of historical lore. Deciduous shrub or small tree; common names: Jerusalem Thorn, Christ's Thorn.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun preferred; tolerates partial shade in extremely hot, arid climates
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Watering Drought-tolerant once established; water deeply but infrequently to avoid root rot
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Temperature Hardy to -10°C; thrives in warm, dry summer temperatures typical of Mediterranean regions
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Characteristics

  • Leaf: Oval to rounded, glossy green, with three prominent veins from the base
  • Flower: Small, creamy-white, clustered in axillary cymes
  • Stem/Bark: Gray-brown bark; paired sharp spines at leaf nodes
  • Fruit: Woody, disc-like samaras with a papery wing
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Care Guide

Watering

Water every 7–10 days during active growth; allow top 5–10 cm of soil to dry between waterings

Fertilization

Apply balanced slow-release fertilizer once at the start of growth. Avoid high-nitrogen fertilizers to prevent excessive foliage growth over flowering

Eggshell powder topdressing:Crush dried eggshells into fine powder; sprinkle lightly on soil surface to boost calcium levels and improve soil drainage without introducing odor or pests
Pruning
  • Remove dead or damaged branches in late Winter to early Spring before new growth emerges
  • Thin overcrowded stems to improve airflow and light penetration throughout the canopy
  • Trim to maintain desired hedge or shrub shape; wear thick protective gloves to avoid sharp spines
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No recorded toxicity to cats

Humans: No known toxic effects to humans

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Garden Uses & Culture

Culture: Associated with biblical narratives as the source of the crown of thorns worn by Christ

Usage: Ornamental hedge, wildlife shelter for birds, and traditional medicinal uses in some Mediterranean cultures