Robusta Coffee Plant (Coffea canephora)

Robusta Coffee Plant

Coffea canephora

Its glossy leaves carry the promise of rich brew, a functional ornamental. Evergreen shrub; common name: Robusta Coffee.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Bright indirect light; tolerate partial shade, but avoid harsh midday direct sun which can scorch leaves
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Watering Water thoroughly when the top 2–3 cm of soil feels dry; avoid overwatering to prevent root rot
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Temperature Thrive in warm, consistent temperatures; avoid drops below 15°C, which can trigger leaf drop and stunted growth
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Characteristics

  • Leaf: Opposite, elliptical, glossy dark green leaves with prominent venation
  • Flower: Clusters of small, white, fragrant star-shaped blooms
  • Stem: Woody, branching stems with smooth, light brown bark when mature
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Care Guide

Watering

Keep soil evenly moist but not waterlogged; mist leaves regularly to boost ambient humidity

Fertilization

Apply diluted balanced liquid fertilizer every 2 weeks. Discontinue fertilization in winter when the plant enters a period of dormancy

Banana peel compost tea:Use fully composted banana peels to avoid pest infestations; dilute the tea at a 1:20 ratio with water for root drenching, and avoid applying directly to leaves
Pruning
  • Prune overgrown branches in early spring to maintain a compact, bushy shape
  • Remove yellowing, damaged, or diseased leaves promptly to improve airflow and reduce pest risk
  • Pinch new growth tips to encourage lateral branching and denser foliage
  • Trim spent flower clusters to redirect the plant's energy toward foliage and fruit production
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic due to caffeine and theobromine; may cause restlessness, rapid heart rate, tremors, vomiting

Humans: Ingestion of large quantities of leaves or raw beans can cause caffeine-related symptoms like insomnia and increased heart rate

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Garden Uses & Culture

Culture: Symbolizes productivity and daily comfort in coffee-growing regions, often associated with community and ritual

Usage: Commercial coffee bean production; indoor ornamental foliage plant; source of caffeine-rich coffee beans