Dwarf spikerush: dense aquatic grass for an aquarium or pond
Eleocharis acicularis, or dwarf spikerush, is one of the few plants capable of imitating the appearance of real grass underwater. It is hardy, grass-like, and oxygenating, making it ideal for a natural aquarium or pond.
What is Eleocharis acicularis?
Fully amphibious plant: grows equally well when submerged or on the bank
Ultra-fine, intense green foliage forming a very dense grassy carpet
Rapid propagation thanks to underground stolons spreading in all directions
Oxygenating when submerged, with a strong and central ecological role in natural bodies of water
Hardy down to -10°C or even lower when submerged
It is often used as a foreground plant in aquariums or ground cover in ponds, and fits perfectly into any low-tech system.
Advantages of Eleocharis acicularis in a natural aquarium
- Realistic, highly sought-after grass-like appearance in aquascaping
- Natural oxygenation of the tank when submerged
- Protection for fish eggs, which fish cannot reach in the heart of the leaves
- Easy reproduction by division or propagation
- Not grazed by goldfish or herbivores
- Perennial, withstands winter underwater
How do you care for Eleocharis acicularis?
- 🌱 Planting: in clumps, in sand or natural soil
- ☀️ Lighting: medium to intense for a low, compact growth habit
- 🔄 Propagation: by separating clumps or through the natural spread of stolons
- 📏 Depth: 0 to 40 cm
- ✂️ Trimming: completely optional; height varies depending on immersion
Tips for using Eleocharis acicularis effectively
Ideal for:
- Low-tech aquarium foreground
- Spawning area in a pond for goldfish or breeding tank
- Natural-soil tub aquarium, even in winter
Pair it with: Java moss, dwarf Sagittaria, Littorella, or a superb Lobelia emerging from this green carpet
For faster coverage: separate and redistribute the clumps from time to time
FAQ - Eleocharis acicularis
Can Eleocharis acicularis grow out of water?
Yes, it is a fully amphibious plant. It also grows on damp banks.
Can it survive the winter outdoors?
Yes. It is completely perennial and hardy.
Does it spread quickly?
Yes, thanks to its stolons, it spreads naturally, forming a superb carpet.
Does it need to be trimmed?
No, it is not necessary. It can reach 5 to 50 cm depending on immersion.
Is it eaten by goldfish?
No. Its leaves are too fine and tough, so they are not very appealing to them.
Additional information
Scientific name: Eleocharis acicularis
Height: 5 to 50 cm depending on immersion conditions
Packaging: sold in clumps (indicative weight: 10 g)
Guarantee: free from rock wool and artificial substrate
Recommendation: do not release into the wild, even if it is not classified as invasive
