Medicinal Spikemoss: A Tiny Tropical Wonder for Your Garden
Meet Selaginella involvens, commonly known as medicinal spikemoss – though don’t let the name fool you into thinking it’s actually a moss! This little green charmer belongs to an ancient group of plants called spikemosses, which are more closely related to ferns than to true mosses. Think of them as the botanical equivalent of that friend who looks younger than they are – these plants have been around for millions of years but maintain a delicate, youthful appearance.
What Exactly Is Medicinal Spikemoss?
Medicinal spikemoss is a perennial plant that grows as a forb, meaning it’s a vascular plant without woody stems above ground. Unlike true mosses, spikemosses have tiny roots and a proper vascular system for transporting water and nutrients. The medicinal part of its common name hints at traditional uses, though as gardeners, we’re more interested in its ornamental charm than its healing properties.
Where Does It Come From?
This spikemoss isn’t native to the continental United States, but it has established itself naturally in parts of the Pacific Basin, particularly in Guam and Palau. It’s what botanists call a naturalized species – one that arrived from elsewhere but now reproduces and thrives without human intervention in its adopted homes.
Is Medicinal Spikemoss Right for Your Garden?
Since this isn’t a native species to most areas where gardeners might encounter it, you’ll want to consider whether it fits your gardening philosophy. It’s not listed as invasive or harmful, so it won’t wreak havoc on local ecosystems, but it also won’t provide the same ecological benefits as native plants would.
Here’s what makes medicinal spikemoss appealing:
- Delicate, moss-like texture adds softness to garden compositions
- Excellent for creating lush, tropical-feeling spaces
- Perfect for terrariums and container gardens
- Thrives in shady spots where other plants struggle
- Low-growing habit makes it ideal as a living carpet
Growing Conditions and Care
If you decide to give medicinal spikemoss a try, think tropical forest floor when planning its care. This little plant craves:
- High humidity: It’s happiest when the air is moist and muggy
- Shade to partial shade: Direct sunlight will quickly stress this delicate plant
- Consistent moisture: Keep the soil evenly moist but not waterlogged
- Warm temperatures: Best suited for USDA zones 10-12, or as a houseplant in cooler areas
Identifying Medicinal Spikemoss
Wondering if you’ve spotted this plant in the wild or at a nursery? Look for these characteristics:
- Tiny, scale-like leaves arranged in overlapping patterns
- Low, creeping growth habit
- Bright to dark green coloration
- Delicate, almost fern-like appearance
- Small spore-bearing structures (sporangia) rather than flowers
Garden Role and Design Ideas
Medicinal spikemoss works beautifully as:
- A living mulch under larger tropical plants
- Accent plantings in shade gardens
- Terrarium specimens
- Container garden components
- Ground cover in humid, shaded areas
Consider Native Alternatives
While medicinal spikemoss can be a lovely addition to the right garden, you might also consider native alternatives that provide similar aesthetic appeal while supporting local wildlife. Look for native ferns, mosses, or other low-growing shade plants that are indigenous to your area – your local extension office or native plant society can point you in the right direction.
The Bottom Line
Medicinal spikemoss is a fascinating little plant that can add unique texture and tropical flair to the right garden setting. It’s not going to attract butterflies or feed birds like native plants would, but it has its own quiet charm. If you love the look of moss but want something a bit more substantial, and you can provide the humid, shady conditions it craves, this ancient little plant might just win a spot in your heart – and your garden.
