Key Features
- Distinctive Frankincense Tree: Grow Boswellia sacra, a remarkable resin-producing tree native to dry regions.
- Elegant Flowers: Produces delicate yellow-white flowers among attractive green foliage.
- Unique Tree Form: Develops a sculptural, often multi-stemmed form with distinctive peeling bark.
- Rock Garden Appeal: Well suited to warm, dry landscapes, specialty gardens, patios, and botanical collections.
- Desert-Adapted Plant: Naturally thrives in rocky, well-drained habitats with strong sunlight and limited moisture.
Growing Benefits
- Adds an unusual and conversation-worthy tree to warm-climate gardens.
- Offers an interesting way to explore a historically important frankincense plant.
- Performs well in gritty, fast-draining growing conditions.
- Can be grown as a specialty container plant in suitable climates.
- Provides distinctive foliage, bark, flowers, and natural architectural form.
Seed Specifications
- Common Name: Frankincense Tree, Boswellia, Sacred Frankincense
- Botanical Name: Boswellia sacra Flueck.
- Plant Type: Perennial resin-producing tree
- Colors: Green foliage; yellow-white flowers; pale, papery bark
- Height: Up to about eight metres in suitable natural conditions
- Sunlight: Full sun and strong direct light
- Soil: Sandy, gritty, rocky, sharply drained soil
- Water: Light to moderate while establishing; avoid prolonged wetness
- Germination Time: Variable; favorable seed trials showed rapid germination, with most successful seeds germinating within several days
- Sowing Depth: Very shallow, about two to three millimetres
- Spacing: Provide generous room for mature growth; container spacing depends on pot size
- Growing Zones: USDA Zone Eleven and warmer
- Flowering/Maturity: Yellow-white flowers develop as plants mature; resin production requires established trees
- Uses: Specialty gardens, warm-climate landscapes, containers, botanical collections, and ornamental tree growing
Growing Tips
- Use a gritty, sharply draining growing medium to protect young roots from excess moisture.
- Soak seeds briefly before sowing; research on Boswellia sacra found about seven hours beneficial for separating empty seeds.
- Keep the growing medium lightly moist during germination without allowing it to become waterlogged.
- Give seedlings bright light and handle their roots carefully when transplanting.
Seed Storage
Store seeds in a cool, dry place away from direct sunlight and humidity. Keep them in a sealed, moisture-resistant container until sowing. For best results, use fresh seed when possible, as Boswellia seed viability can vary considerably.
Unique Facts About Seeds
- Boswellia sacra is one of the principal species associated with true frankincense production.
- Research has found considerable variation in germination among seed batches, making seed quality especially important.
- The tree naturally grows on rocky limestone slopes, gullies, and exposed habitats in parts of Arabia and Africa.
- Its resin has been valued for centuries and remains strongly associated with incense and traditional cultural practices.
