Spiny Fiddlewood (Citharexylum spinosum)

Spiny Fiddlewood

Citharexylum spinosum

Its glossy leaves and fragrant blooms bring warm garden charm. Evergreen shrub or small tree; common names: Spiny Fiddlewood, Fiddlewood.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; tolerates coastal sun exposure and mild salt spray
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Watering Water deeply when top 5 cm of soil is dry; drought-tolerant once established
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Temperature Thrives in warm subtropical climates; protect from frost below 10°C
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Characteristics

  • Leaf: Opposite, elliptical, glossy dark green, 5–15 cm long, with smooth margins
  • Flower: Clusters of small, white, fragrant tubular blooms arranged in terminal panicles
  • Stem/Bark: Young stems have sharp spines; mature bark is grayish-brown and slightly fissured
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Care Guide

Watering

Keep soil consistently moist during active growth periods

Fertilization

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

Eggshell powder top-dress:Crush clean, dried eggshells into fine powder; dust lightly around the base of the plant every 3 months to boost soil calcium levels
Pruning
  • Prune immediately after flowering to maintain desired shape and remove dead or damaged branches
  • Trim sharp spiny stems in high-traffic areas to reduce injury risk
  • Thin overcrowded inner growth to improve air circulation and promote better flowering
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: No documented toxicity to cats

Humans: No documented toxicity to humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental garden specimen, hedge plant; fragrant blooms attract bees and butterflies