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Roystonea reagia – Cuban Royal Palm (Seeds) | VIRIAR
Roystonea reagia – Cuban Royal Palm (Seeds) | VIRIAR
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Roystonea regia
Cuban Royal Palm
Magnificent stately palm with elegant crownshaft and graceful fronds
About Roystonea regia
Roystonea regia, commonly known as the Cuban Royal Palm, is a magnificent and stately palm tree native to the Caribbean, particularly Cuba, and parts of Central America. This iconic palm is widely admired for its tall, smooth, light-gray trunk which can reach heights of 20–30 meters (65–100 feet).
The tree displays lush, arching fronds that form a large, graceful canopy. Its distinctive crownshaft—the elegant green portion just below the fronds—adds distinctive character and visual appeal. This palm is often planted as an ornamental feature in parks, avenues, and large gardens, imparting a tropical, grand atmosphere that creates an unforgettable landscape presence.
Roystonea regia produces small, white flowers and purple-black fruits that attract birds and wildlife, making it both ornamentally beautiful and ecologically valuable. The tree's natural form and majestic bearing make it an iconic symbol of Caribbean landscapes.
Cultivation Requirements
Light
Roystonea regia thrives in full sun exposure. It prefers a location with at least 6 hours of direct sunlight per day. While it can tolerate light shade when young, full sun produces the most vigorous growth and best form.
Temperature & Hardiness
Suitable for USDA zones 10–11. Prefers warm, tropical, or subtropical climates and thrives best when temperatures remain consistently warm. Can tolerate brief periods of cold down to 30°F (−1°C), but frost can damage or kill young palms. Protection is recommended in marginal areas.
Soil
Prefers well-draining, fertile soils but is adaptable to a range of soil types, including sandy, loamy, and clay soils. Slightly acidic to neutral soil (pH 6.0–7.5) is ideal. Good drainage is essential to prevent root problems.
Watering
Prefers consistently moist soil, especially when young. Somewhat drought-tolerant once established, but regular watering keeps it healthy and thriving, particularly during dry spells. Water deeply but allow soil surface to dry slightly between waterings.
Fertilization
Fertilize in spring and summer with a slow-release palm fertilizer containing micronutrients such as manganese, magnesium, and potassium. These elements encourage healthy growth and prevent nutrient deficiencies like frizzle top.
Pruning
Regularly remove dead or damaged fronds to maintain a neat appearance. Avoid excessive pruning, as this palm naturally sheds old fronds. Never remove living green fronds as they contribute to the palm's health and photosynthetic capacity.
Seed Propagation & Planting
Seed Collection & Preparation
Collection: Collect ripe seeds when they turn black. Cleaning: Remove the fleshy pulp carefully. Soaking: Soak cleaned seeds in water for several days to soften the seed coat and enhance germination potential.
Sowing Medium & Conditions
Plant seeds in a well-draining seed mix. Maintain warm temperatures (25–30 °C or 77–86 °F) and consistent moisture during germination. Keep in a bright location with indirect light.
Germination Timeline
Germination can take several weeks to several months, depending on seed freshness and growing conditions. Patience is essential; regular moisture monitoring ensures success.
Transplanting & Planting
Transplanting: Young palms can be transplanted when they outgrow their containers. Planting: Plant in spring or early summer in a full-sun location with plenty of space. Dig a hole twice the size of root ball and backfill with well-draining soil. Water thoroughly after planting to settle soil.
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