Eleocharis acicularis 100 Seeds – Spike Rush Aquatic Grass for Pond & Water Garden

Eleocharis acicularis, commonly known as spike rush or dwarf hairgrass, is a fine-textured aquatic grass that forms dense, carpet-like clumps of bright green foliage. Its thread-like leaves create a soft, natural look in ponds, water gardens, and boggy areas, making it a favorite for adding texture and movement to water features. This heirloom, non-GMO variety is well-suited for naturalizing along pond margins, in shallow water, or in consistently moist soil, where it provides excellent cover for small aquatic life and helps soften rocky edges.

Spike rush is a versatile plant that can be grown as a submerged or emergent aquatic grass, depending on water depth. It is often used in rain gardens, wildlife ponds, and container water gardens, where its compact growth habit and tolerance of wet conditions make it an easy choice for low-maintenance landscapes.

Plant Features

• Fine, needle-like green foliage forms dense, grass-like tufts
• Excellent for pond edges, water gardens, and boggy areas
• Provides cover and spawning habitat for small aquatic wildlife
• Heirloom, non-GMO seeds for natural, sustainable planting
• Adaptable to shallow water or consistently moist soil

Growing Information

• Botanical Name: Eleocharis acicularis
• Plant Type: Aquatic perennial grass
• Sunlight: Full sun to partial shade
• Soil: Wet, muddy soil or shallow water
• Water Requirements: High; keep soil saturated or submerged
• Growth Habit: Clumping, spreading by rhizomes
• USDA Hardiness Zones: 4-11
• Mature Height: 4-12 inches
• Spacing: 6-12 inches apart

Planting & Care

To grow spike rush from seeds, sow them on the surface of wet, muddy soil or in shallow water in a container or directly in a pond margin. Do not bury the seeds deeply; they need light and consistent moisture to germinate. Keep the soil saturated and maintain a water temperature around 65-75°F for best results. Germination can be slow and uneven, so be patient and keep the area consistently wet.

Once seedlings are established, they can be transplanted into shallow water up to a few inches deep or into boggy soil. Spike rush thrives in full sun to partial shade and requires little maintenance beyond keeping the soil wet. Trim back dead foliage in early spring to encourage fresh growth. It can spread by rhizomes to form a dense carpet, making it an excellent choice for naturalizing pond edges and water features.

What's Included

100 Eleocharis acicularis seeds (Spike Rush).