What To Know
- Place the capsules in a paper bag or other breathable container.
- Plant the seeds in a well-draining potting mix and keep them moist.
- Dry thoroughly, store in a cool, dry location in an airtight container.
The ohia lehua, Hawaii’s beloved native tree, is renowned for its vibrant blossoms and cultural significance. Its seeds hold the potential for propagating new trees and preserving this iconic species. This comprehensive guide will empower you with the knowledge and techniques for successful ohia lehua seed harvesting.
Understanding Ohia Lehua Seed Production
Ohia lehua flowers produce seed capsules that contain numerous tiny seeds. These capsules mature and turn brown when the seeds are ready for dispersal. The optimal time for harvesting is typically from August to October.
Identifying Mature Seed Capsules
Mature ohia lehua seed capsules exhibit several key characteristics:
- Brown Color: The capsules change from green to brown as they ripen.
- Dry and Brittle Texture: The capsules become dry and brittle, easily breaking apart when handled.
- Openings: Small openings or cracks develop in the capsules, allowing seeds to escape.
Harvesting Techniques
1. Hand Collection
- Inspect the Tree: Carefully examine the tree for mature seed capsules.
- Pick Gently: Gently pick the capsules by hand, avoiding excessive force.
- Container: Place the capsules in a paper bag or other breathable container.
2. Shaking Method
- Spread Tarp: Spread a tarp or sheet beneath the tree.
- Shake Branches: Vigorously shake the branches to dislodge mature capsules.
- Collect Seeds: Gather the capsules from the tarp and remove the seeds.
3. Pruning Method
- Prune Branches: Prune branches that contain mature seed capsules.
- Harvest Capsules: Collect the capsules from the pruned branches and remove the seeds.
Seed Extraction
Once you have harvested the seed capsules, you need to extract the seeds:
- Break Open: Carefully break open the capsules to release the seeds.
- Remove Debris: Remove any debris, such as flower remnants or chaff.
- Clean Seeds: Gently clean the seeds to remove any remaining debris.
Seed Storage
- Dry Thoroughly: Allow the seeds to dry thoroughly before storing them.
- Cool and Dry: Store the seeds in a cool, dry location with good ventilation.
- Airtight Container: Use an airtight container to prevent moisture and pests.
Germination and Propagation
- Scarification: Lightly scarify the seeds by rubbing them gently with sandpaper.
- Soak: Soak the seeds in warm water for 24 hours.
- Planting: Plant the seeds in a well-draining potting mix and keep them moist.
- Germination: Germination typically occurs within 2-4 weeks.
Benefits of Harvesting Ohia Lehua Seeds
- Propagation: Preserve and propagate the ohia lehua species.
- Reforestation: Contribute to reforestation efforts and restore native ecosystems.
- Cultural Significance: Honor the cultural significance of the ohia lehua.
Top Questions Asked
1. What is the best time to harvest ohia lehua seeds?
August to October, when the seed capsules are mature and brown.
2. How can I identify mature seed capsules?
Look for brown color, dry texture, and small openings.
3. What are the different harvesting techniques?
Hand collection, shaking method, and pruning method.
4. How do I extract the seeds from the capsules?
Carefully break open the capsules and remove the seeds.
5. How should I store ohia lehua seeds?
Dry thoroughly, store in a cool, dry location in an airtight container.
6. How do I germinate ohia lehua seeds?
Lightly scarify, soak, and plant in well-draining potting mix.
7. What are the benefits of harvesting ohia lehua seeds?
Propagation, reforestation, and cultural significance.
