Discovering Davallia denticulata: A Charming Pacific Fern for Tropical Gardens
If you’re looking to add some tropical flair to your garden and happen to live in a warm climate, you might want to get acquainted with Davallia denticulata. This delightful fern might not have a catchy common name that rolls off the tongue, but what it lacks in memorable monikers, it more than makes up for in charm and character.





What Exactly is Davallia denticulata?
Davallia denticulata is a native fern species that calls the Pacific Basin home, specifically thriving in places like Guam and Palau. As a member of the fern family, this plant doesn’t produce flowers or seeds like your typical garden plants. Instead, it reproduces through spores and spreads via fuzzy, creeping rhizomes that look almost like tiny furry feet crawling along surfaces.
This epiphytic beauty has mastered the art of living life on the edge – literally. In its natural habitat, you’ll often find it growing on tree bark, rocks, or other surfaces where it can anchor its rhizomes while its delicate fronds cascade gracefully downward.
Why Your Garden Might Love This Fern
While Davallia denticulata won’t attract butterflies or bees (ferns don’t produce nectar-rich flowers), it offers other valuable benefits to your garden ecosystem:
- Provides shelter and habitat for small creatures like insects and tiny reptiles
- Adds textural interest with its intricate, lacy foliage
- Creates natural humidity in its immediate vicinity
- Offers year-round greenery in tropical landscapes
- Requires minimal soil, making it perfect for challenging growing spots
Identifying Davallia denticulata
Spotting this fern is relatively straightforward once you know what to look for. The key identifying features include:
- Delicate, finely divided fronds with a lacy, almost ethereal appearance
- Fuzzy, creeping rhizomes that spread along surfaces
- Rhizomes covered in brown or golden-brown scales
- Fronds that emerge directly from the rhizomes rather than a central crown
- Overall compact growth habit, typically staying under 2 feet in height
Growing Conditions and Care
If you’re lucky enough to live in USDA hardiness zones 10-12, you can successfully grow Davallia denticulata outdoors year-round. This tropical native thrives in:
- Warm, consistently humid conditions
- Filtered or dappled light (avoid direct, harsh sunlight)
- Well-draining, organic-rich growing medium
- Temperatures consistently above 60°F
Planting and Care Tips
Growing Davallia denticulata is more about creating the right environment than traditional planting. Here’s how to keep your Pacific fern happy:
- Mount the rhizomes on tree bark, cork bark, or rough stones using fishing line or plant ties
- Keep the growing medium consistently moist but never waterlogged
- Mist regularly to maintain humidity, especially during dry periods
- Provide protection from strong winds and direct afternoon sun
- Feed monthly with a diluted, balanced liquid fertilizer during growing season
Is This Fern Right for Your Garden?
Davallia denticulata makes an excellent choice for gardeners in tropical and subtropical regions who want to add native plant diversity to their landscapes. It’s particularly well-suited for:
- Shade gardens under large trees
- Rock gardens with good drainage
- Tropical-themed landscape designs
- Container gardens that can be moved indoors if needed
- Gardens focused on native Pacific plant species
While this fern won’t provide nectar for pollinators, it contributes to biodiversity and creates microhabitats for small wildlife. Plus, there’s something undeniably satisfying about successfully growing a plant that’s truly native to its region – you’re essentially providing a piece of home for this Pacific island native.
Just remember, if you don’t live in the tropics, you’ll need to treat this as a houseplant or greenhouse specimen. But for those in the right climate zones, Davallia denticulata offers a unique way to celebrate the natural heritage of the Pacific islands right in your own backyard.