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Delonix regia – Royal Poinciana, Flamboyant (Seeds) | VIRIAR
Delonix regia – Royal Poinciana, Flamboyant (Seeds) | VIRIAR
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Delonix regia
Royal Poinciana / Flamboyant Tree
Stunning tropical tree with vibrant red-orange flowers and elegant fern-like foliage
About Delonix regia
Delonix regia, commonly known as the Royal Poinciana or Flamboyant Tree, is a strikingly beautiful tropical tree native to Madagascar. It is renowned for its dramatic display of bright red to orange flowers and its broad, spreading canopy.
The Royal Poinciana can grow up to 12-15 meters (39-49 feet) in height and has a wide, spreading canopy that can extend up to 15 meters (49 feet) in width. The leaves are pinnate and finely divided, giving them a delicate, fern-like appearance. The tree produces large, flamboyant clusters of flowers with five vibrant, overlapping petals in shades of red, orange, or yellow.
These flowers bloom from late spring to early summer and create a striking contrast against the green foliage. Following the flowering period, the tree produces long, flat seed pods that are initially green and turn brown as they mature.
Growing Conditions
☀️ Light Requirements
Full Sun Essential: Delonix regia thrives in full sun and requires plenty of bright, direct sunlight for optimal growth and flowering. It should be planted in a location where it can receive at least 6-8 hours of sunlight per day. Maximum sun exposure is critical for vibrant flower production.
🌡️ Temperature Preferences
Warm Tropical Climate: This tree prefers warm, tropical to subtropical climates with temperatures ranging from 20-35°C (68-95°F). It is sensitive to frost and should be protected from temperatures below 5°C (41°F). It is best suited for USDA zones 10-11.
🌍 Soil Composition
Well-Draining Soil Required: The Royal Poinciana prefers well-draining, sandy or loamy soils rich in organic matter. It can adapt to various soil types but thrives in slightly acidic to neutral pH conditions. Ensure good drainage to prevent root rot and fungal diseases.
💧 Water Management
Regular Watering During Growth: Regular watering is essential, especially during the growing season. Keep the soil consistently moist but not waterlogged. Reduce watering in the winter months when the tree's growth slows down. Proper drainage is critical to prevent root issues.
Planting & Care Guide
🌳 Planting Location
Optimal Positioning: Choose a location with full sun and well-draining soil. If planting in the ground, ensure there is enough space for the tree's wide canopy (15+ meters). For container planting, use a large pot with excellent drainage and a nutrient-rich potting mix.
🧪 Fertilization Program
Regular Feeding for Blooms: Feed Delonix regia with a balanced, slow-release fertilizer during the growing season. Apply fertilizer every 6-8 weeks to support healthy growth and vibrant flowering. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of flowering.
✂️ Maintenance & Pruning
Shape and Health: Prune the tree to maintain its shape and remove dead or damaged branches. The Royal Poinciana is relatively low-maintenance but should be monitored for pests and diseases such as aphids, scale insects, and fungal infections. Ensure good air circulation around the canopy to reduce disease risk.
🐛 Pest & Disease Management
Prevention First: Monitor regularly for aphids, scale insects, and fungal infections. Maintain proper watering practices and good air circulation to prevent disease. Use organic solutions when necessary and avoid harsh chemical pesticides.
Seed Germination Guide
Seed Preparation
Soak the seeds of Delonix regia in warm water for 24 hours to soften the seed coat and improve germination rates. You can also nick the seeds with a file or sandpaper to help them absorb water more effectively.
Sowing Medium
Sow the seeds in a well-draining seed-starting mix. Plant the seeds about 2-3 cm (1 inch) deep and cover lightly with soil. Ensure proper drainage to prevent seed rot during germination.
Temperature & Humidity
Warm Environment: Place the seed tray in a warm, sunny location with temperatures around 25-30°C (77-86°F). Keep the soil consistently moist but not waterlogged. Germination can take several weeks to a few months depending on conditions.
Light Conditions
Provide bright, direct light to germinating seeds and seedlings. Strong sunlight promotes healthy, compact growth. Once seedlings emerge, ensure they receive plenty of light to prevent stretching and weak growth.
Care for Seedlings
Transplanting & Acclimation: Once seedlings emerge, provide them with bright, direct light and gradually acclimate them to more intense sunlight as they grow. Transplant seedlings into larger pots or directly into the garden when they are large enough to handle without damage.
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