Greater Yellowspike Orchid: A Tiny Native Treasure for Orchid Enthusiasts
If you’re an orchid lover looking to add a touch of native charm to your collection, meet the greater yellowspike orchid (Polystachya concreta). This petite epiphytic orchid might not be the showiest plant in your garden, but it holds the special distinction of being one of the few orchids native to the United States and its territories.





What Makes the Greater Yellowspike Orchid Special?
The greater yellowspike orchid is a delicate perennial that grows as an epiphyte, meaning it naturally lives on other plants (usually trees) rather than in soil. Don’t worry – it’s not a parasite! Like other epiphytic orchids, it simply uses its host for support while gathering moisture and nutrients from the air and rain.
This charming little orchid produces clusters of small, yellow-green flowers arranged in distinctive spike-like formations, which is exactly how it earned its common name. The flowers may be modest in size, but they’re perfectly formed miniature orchid blooms that orchid enthusiasts absolutely adore.
Where Does It Call Home?
The greater yellowspike orchid is native to some of the most tropical parts of the United States, including Florida, Puerto Rico, and the U.S. Virgin Islands. In the wild, you’ll find it growing on trees in humid, shaded forest environments where it enjoys the filtered light and consistent moisture these ecosystems provide.
Should You Grow Greater Yellowspike Orchid?
Here’s the honest truth: this isn’t a plant for every gardener. The greater yellowspike orchid is definitely in the specialty plant category, and here’s why you might – or might not – want to add it to your collection:
Reasons to Consider It:
- It’s a native species, supporting local biodiversity
- Perfect for orchid collectors who want something truly unique
- Compact size makes it ideal for small spaces or terrariums
- Attracts small pollinators and beneficial insects
- Low maintenance once you understand its needs
Reasons to Think Twice:
- Requires very specific growing conditions
- Only hardy in USDA zones 10-11 (most gardeners will need a greenhouse)
- Flowers are small and not particularly showy
- Can be challenging to source from reputable nurseries
- Needs consistent high humidity
How to Successfully Grow Greater Yellowspike Orchid
If you’re up for the challenge, here’s what this little orchid needs to thrive:
Growing Conditions:
- Light: Filtered, indirect light – think dappled shade
- Temperature: Warm temperatures year-round (65-85°F)
- Humidity: High humidity (60-80%) is essential
- Air circulation: Good airflow to prevent fungal issues
Planting and Care:
- Mount on cork bark, tree fern, or grow in a well-draining orchid bark mix
- Water regularly but ensure excellent drainage – soggy conditions are fatal
- Mist regularly to maintain humidity, but avoid getting water in the crown
- Feed lightly with diluted orchid fertilizer during growing season
- Protect from direct sunlight and cold drafts
Best Garden Settings
The greater yellowspike orchid works best in:
- Dedicated orchid collections and greenhouses
- Tropical shade gardens in zones 10-11
- Epiphyte displays and naturalistic plantings
- Terrariums and controlled environment setups
The Bottom Line
The greater yellowspike orchid is definitely a plant for the dedicated orchid enthusiast rather than the casual gardener. While it may not provide the dramatic blooms of some of its tropical cousins, it offers something even more valuable: the satisfaction of successfully growing a native orchid species.
If you live in a suitable climate or have a greenhouse setup, and you’re passionate about orchids and native plants, this little beauty could be a wonderful addition to your collection. Just remember to source your plant responsibly from reputable orchid specialists who propagate their stock rather than wild-collect.
For most gardeners in temperate climates, you might want to start with more forgiving native options and work your way up to specialty orchids like this one. But for those ready for the challenge, the greater yellowspike orchid offers a unique opportunity to grow a truly special native treasure.