Mendrina: A Rare Puerto Rican Native Worth Protecting
Meet mendrina (Lunaria ekmanii), a fascinating shrub that calls Puerto Rico home. While you might not find this plant at your local garden center, it’s worth knowing about – especially if you’re passionate about native plants and conservation gardening.
What Is Mendrina?
Mendrina is a perennial shrub native exclusively to Puerto Rico. Like many shrubs, it’s a multi-stemmed woody plant that typically stays under 13-16 feet tall, though it can grow taller or even develop a single stem depending on its environment. You might also see it listed under its synonym, Lunaria buchii.
Where Does Mendrina Grow?
This unique plant is found only in Puerto Rico, making it what botanists call an endemic species – it exists nowhere else in the world naturally. Within Puerto Rico, mendrina tends to favor areas that are usually wet but can tolerate drier conditions, earning it the classification of facultative wetland plant.
- Species observed
- No observations
Should You Plant Mendrina?
Here’s where things get interesting – and a bit cautionary. Mendrina carries a Global Conservation Status of S2?, which indicates it may be imperiled or at risk. This rarity status means you should approach this plant thoughtfully.
If you’re considering growing mendrina:
- Only source plants or seeds from reputable, conservation-minded suppliers
- Never collect from wild populations
- Consider it an opportunity to participate in conservation efforts
- Be prepared for limited growing information due to its rarity
Growing Conditions and Care
Unfortunately, detailed cultivation information for mendrina is scarce – a common challenge with rare native plants. Based on its natural habitat and wetland status, it likely prefers:
- Consistently moist soil conditions
- Tropical to subtropical climates
- Protection from harsh winds
If you’re gardening outside of Puerto Rico’s tropical climate, mendrina may be challenging to grow outdoors year-round and might require greenhouse cultivation.
Garden Design Role
In its native habitat, mendrina would likely serve as a mid-layer shrub in naturalistic plantings or conservation gardens. Its ability to tolerate both wet and moderately dry conditions could make it valuable for rain gardens or areas with variable moisture levels.
Wildlife and Pollinator Benefits
While specific wildlife benefits aren’t well-documented, native shrubs like mendrina typically provide important ecosystem services in their home ranges, potentially including shelter for birds, food sources for insects, and habitat structure for various wildlife species.
The Bottom Line
Mendrina represents both an opportunity and a responsibility. If you’re passionate about rare native plants and have the right growing conditions, it could be a meaningful addition to a conservation-focused garden. However, always prioritize responsible sourcing and consider supporting conservation efforts for this potentially at-risk species.
For most gardeners, especially those outside tropical regions, focusing on locally native plants might be more practical. But for dedicated conservation gardeners in suitable climates, mendrina offers a chance to help preserve a unique piece of Puerto Rico’s natural heritage.