How to Grow Sunburst Mahogany

Sunburst Mahogany

Swietenia mahagoni

tree

Sunburst Mahogany is a tropical hardwood tree known for its rich, reddish-brown wood and attractive golden-bronze new foliage that gives it its "sunburst" common name. Native to the Caribbean and Central America, it grows into a large, spreading shade tree with compound leaves and small flowers followed by woody seed capsules. This is a premium timber tree that also serves as an ornamental in tropical and subtropical landscapes.

When should you plant Sunburst Mahogany in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my Sunburst Mahogany timeline →

Example Sunburst Mahogany timeline · Pittsburgh, PA (Zone 6b)

Plant Sunburst Mahogany
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Sunburst Mahogany
Late summer into fall

Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Sunburst Mahogany dates for your own zip code.

Growing Conditions

☀️

Sun: Full sun, 6-8 hours daily; tolerates partial shade in very hot climates

💧

Water: Regular watering during establishment (first 2-3 years); drought-tolerant once established but prefers consistent moisture during growing season; reduce in winter

📏

Spacing: 240 inches

📅

Days to maturity: 5-7 years to substantial size; 15-25 years to productive timber harvest maturity

🌱

Planting depth: Plant at same depth as root ball; seeds planted 1 inch deep

Soil

Type: Well-draining sandy loam to loamy soil

pH: 6.0-7.5

Amendments:

Compost or aged manure for initial planting Mulch to retain moisture and regulate temperature Occasional balanced slow-release fertilizer

Growing Zones

Find your zone →

Thrives in USDA zones 10b-11; requires frost-free tropical or subtropical climates

10b 11a 11b

Get my Sunburst Mahogany timeline →

Growth Stages

Germination & Seedling

4-8 weeks

Seeds sprout in 2-3 weeks; seedlings develop 2-4 true leaves with characteristic compound leaflet structure

Keep soil consistently moist but not waterlogged; provide bright, indirect light; maintain warm temperatures (70-85°F); protect from strong winds

Young Growth & Establishment

1-3 years

Tree grows rapidly with alternating compound leaves; displays the signature golden-bronze coloring on new growth; develops single main leader

Water regularly; stake if needed for straight growth; prune competing leaders to maintain single main stem; mulch to conserve moisture and keep roots cool

Vegetative Development

3-8 years

Tree develops spreading canopy and stronger branch structure; foliage matures to dark green; wood becomes denser; growth rate slows compared to juvenile stage

Continue regular watering; fertilize 2-3 times during growing season with balanced formulation; prune to shape canopy and remove crossing branches; monitor for pests

Flowering & Fruiting

Sporadic, typically after 8-10 years; blooms in spring

Small greenish-yellow flowers appear in leaf axils and terminal clusters; flowers are fragrant but inconspicuous; flowers develop into large, woody, oblong seed capsules (3-5 inches long)

Maintain consistent watering and nutrients; allow fruit to mature fully on tree before harvesting seeds; do not remove seed pods prematurely

Mature Tree

Indefinite; can live 300+ years

Full-sized tree 40-60 feet tall with broad, spreading crown; dense dark-green foliage; produces seed capsules annually once mature; wood reaches premium color and grain

Minimal intervention needed; remove dead or diseased branches; monitor for pests; selective pruning for form; can be harvested for timber at 15-25 years

Companion Planting

Plan your garden →

Plant with:

Royal Poinciana Mango trees Coconut palms Breadfruit Avocado Understory shade-tolerant plants (in mature canopy)

Avoid planting near:

Black walnut (produces allelopathic compounds) Dense tree canopies that compete for light during juvenile growth

Common Pests

Remove affected shoots; apply neem oil or insecticidal soap; maintain tree vigor; plant resistant selections when available; chemical insecticides as last resort
Spray with horticultural oil or insecticidal soap; prune heavily infested branches; improve air circulation
Generally manageable in established trees; remove affected foliage; apply botanical insecticides if damage is severe
Increase humidity with overhead watering; spray with water or neem oil; ensure adequate soil moisture

Uses

🏠

Premium Hardwood Timber

Household

Sunburst Mahogany wood is one of the world's most valued hardwoods, prized for fine furniture, cabinetry, musical instruments, and decorative veneers. The rich reddish-brown color and fine grain deepen beautifully with age and finishing. [source]

🎨

Woodworking & Instrument Making

Craft

Luthiers and fine woodworkers value mahogany for crafting guitars, violins, and other instruments due to its acoustic properties and workability. The wood's stability and appearance make it ideal for intricate joinery and detailed carving. [source]

🦋

Shade Tree & Wildlife Habitat

Wildlife

The broad canopy provides excellent shade in tropical landscapes and the flowers attract pollinators. The tree provides food and shelter for birds and other wildlife. [source]

🌿

Landscape Ornamental

Ornamental

The striking golden-bronze new growth and elegant spreading form make it a prized ornamental tree in tropical gardens. The dramatic foliage color changes create visual interest throughout the year. [source]

💊

Traditional Medicine

Medicinal

In Caribbean and Central American traditional medicine, mahogany bark and leaves have been used in remedies, though scientific validation is limited. Historical use includes treating fever and inflammation. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Seed pods mature 6-10 months after flowering; harvest when pods turn brown and begin to split naturally; collect winged seeds; dry seeds for storage. For timber harvest, fell trees at 15-25+ years of age when wood has developed ideal color and grain; wood reaches premium value and characteristics at this maturity.

Fun Facts

🌱 Swietenia mahagoni was so over-harvested for its timber during the colonial era that it was nearly driven to extinction in the wild; today it is listed as Vulnerable on the IUCN Red List, making cultivated trees particularly valuable.
🌱 The distinctive golden-bronze coloring of new Sunburst Mahogany foliage is due to the presence of protective anthocyanin pigments; this 'flush' appearance inspired the 'Sunburst' common name and makes it visually distinctive from other mahogany species.
🌱 A single mature mahogany tree can be worth tens of thousands of dollars as timber; some old-growth specimens have sold for over $1 million, making it one of the most economically valuable tree species in the world.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Annual Crown Full Sun Mulch Partial Shade True Leaves

Shop Sunburst Mahogany plants and related plants at Plant Addicts →

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Sunburst Mahogany planting timeline

Tell us your zip code and we'll calculate exactly when to start Sunburst Mahogany seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Sunburst Mahogany timeline →