Royal Palm (Roystonea regia)

Royal Palm

Roystonea regia

Tall, stately fronds frame tropical skies like green crowns. Fast-growing evergreen palm tree; common name: Cuban Royal Palm.

Full sun
2–3/week
Moderate
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Plant Needs

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Sunlight Full direct sun for mature palms; partial shade tolerated by young seedlings to prevent leaf scorch
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Watering Water deeply and infrequently; allow the top 15–20 cm of soil to dry out completely between waterings to avoid root rot
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Temperature Thrives in warm tropical and subtropical climates; avoid frost and prolonged exposure to temperatures below 10°C
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Characteristics

  • Leaf: Pinnate fronds up to 4–5 m long, arching, bright green; leaf sheath forms a smooth, green crownshaft at top of trunk
  • Flower: Creamy-white, fragrant inflorescences emerging below the crownshaft
  • Stem: Slender gray-brown trunk with distinct ring markings from shed leaf sheaths
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Care Guide

Watering

Increase watering frequency to maintain consistent soil moisture during active growth periods

Fertilization

Apply slow-release palm fertilizer with balanced N-P-K and micronutrients. Avoid high-nitrogen fertilizers that can damage palm fronds

Eggshell powder + banana peel compost tea:Crush dried eggshells into fine powder and steep composted banana peels in water for 24 hours; dilute 1:20 for root drench to boost soil nutrient content
Pruning
  • Remove dead, brown fronds to maintain a tidy appearance and reduce potential pest and disease habitat
  • Trim spent inflorescences and mature fruit clusters to eliminate falling debris hazards
  • Avoid cutting healthy green fronds, as they support photosynthetic activity for the palm
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxicity to humans

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Garden Uses & Culture

Culture: Symbolizes tropical elegance and hospitality in Caribbean and southern US landscapes

Usage: Ornamental street tree, landscape specimen, and coastal windbreak in warm climates