Narrowleaf Colicwood: A Rare Hawaiian Treasure Worth Protecting
If you’re passionate about native Hawaiian plants and conservation, you’ve probably wondered about some of the islands’ rarest botanical treasures. Meet narrowleaf colicwood (Myrsine linearifolia), a critically endangered shrub that represents both the beauty and fragility of Hawaii’s unique ecosystem.
What Makes Narrowleaf Colicwood Special?
This perennial shrub is endemic to Hawaii, meaning it exists nowhere else on Earth. Narrowleaf colicwood typically grows as a multi-stemmed woody plant, usually staying under 13-16 feet tall, though it can occasionally reach greater heights under ideal conditions. Its compact growth habit and narrow leaves give it a distinctive appearance that sets it apart from other Hawaiian natives.
Where Does It Grow Naturally?
Narrowleaf colicwood is found exclusively in Hawaii, where it grows naturally in native forest environments. This plant has adapted to the islands’ unique climate and soil conditions over thousands of years.
A Plant in Crisis: Understanding Its Rarity
Here’s where things get serious: narrowleaf colicwood has a Global Conservation Status of S1, which means it’s critically imperiled. With typically five or fewer occurrences and very few remaining individuals (less than 1,000), this species is fighting for survival. It’s also listed as Threatened in the United States.
What does this mean for gardeners? If you’re considering adding this plant to your landscape, you absolutely can – but only with responsibly sourced material from reputable native plant nurseries or conservation programs. Never collect from wild populations.
Growing Narrowleaf Colicwood: The Basics
For those lucky enough to obtain properly sourced plants, narrowleaf colicwood can be a rewarding addition to native Hawaiian gardens. Here’s what you need to know:
- Climate zones: USDA zones 10-12 (tropical and subtropical)
- Water needs: Facultative upland status means it usually prefers non-wetland conditions but can tolerate some moisture
- Soil: Well-draining soils work best
- Light: Partial shade to full sun
- Maintenance: Minimal water requirements once established
Care and Maintenance Tips
Once your narrowleaf colicwood is established, it’s relatively low-maintenance:
- Water sparingly – this plant prefers drier conditions once mature
- Protect from strong winds, especially when young
- Avoid over-fertilizing, as native plants often prefer lean soils
- Mulch around the base to retain moisture and suppress weeds
Perfect for Conservation Landscaping
Narrowleaf colicwood shines in native Hawaiian gardens and restoration projects. Its compact size makes it suitable for smaller spaces, while its rarity adds conservation value to your landscape. Consider pairing it with other native Hawaiian plants to create an authentic island ecosystem in your yard.
Supporting Pollinators and Wildlife
While specific pollinator relationships aren’t well-documented, native Hawaiian plants like narrowleaf colicwood typically support native insects and contribute to the overall health of local ecosystems. By growing this plant, you’re helping preserve genetic diversity and providing habitat for Hawaii’s unique wildlife.
The Bottom Line
Narrowleaf colicwood is more than just a pretty shrub – it’s a living piece of Hawaiian natural heritage hanging by a thread. If you have the opportunity to grow this rare plant, you’re participating in its conservation while adding something truly special to your garden. Just remember: source responsibly, grow carefully, and appreciate the privilege of nurturing one of Hawaii’s botanical treasures.
Every plant we save in cultivation is a genetic lifeline for this critically endangered species. In a world where native plants are disappearing at alarming rates, your garden could become an ark for Hawaii’s irreplaceable flora.
