trefle.io · CC-BY-SA
Cymodoceaceae
Halodule uninervis
Halodule uninervis
Also known as Zostera tridentata, Diplanthera uninervis, Diplanthera tridentata, Phucagrostis tridentata
Tropical Plants · Native Plants · Seagrass · Marine Plant · Aquatic · Tropical · Brackish Water · Coastal · Saltwater · Ecosystem · Indo-Pacific · Cymodoceaceae
Halodule uninervis, commonly known as needleleaf seagrass, is a fully marine aquatic plant that grows submerged in shallow tropical coastal waters and is not suitable for conventional home gardening. It requires stable saline or brackish water conditions, adequate sunlight penetration, and sandy or muddy substrate to thrive. This species is primarily of ecological importance as critical habitat for sea turtles, dugongs, and juvenile fish rather than a decorative plant for purchase.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Fully aquatic; requires permanent saltwater or brackish water immersion · Continuously submerged in shallow marine or brackish water
- Maintenance
- High
- Soil
- loam
- Soil pH
- 5.5–7
- Temperature
- -25°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 6 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Aldabra, Andaman Is., Bangladesh, Borneo, Caroline Is., Comoros, Egypt, Eritrea, Fiji, Gulf States, Hainan, India, Iran, Jawa, Kenya, KwaZulu-Natal, Lesser Sunda Is., Madagascar, Malaya, Maluku
Sources: trefle, usda
Buy this plant
No nurseries currently list it
No nursery lists Halodule uninervis right now.