Fiber Optic Grass (Isolepis) Care: Fountain-Like Flowers

Unique Texture

Isolepis cernua (Scirpus cernuus) forms a clumping mound with silvery-white flower tips resembling fiber optics. Spills over containers—great in tall planters or hanging pots.

Care Essentials

• Light: Bright to full sun.
• Water: Keep moist or wet always. Native to marshes—can’t overwater. Yellow/brown = too dry.
• Humidity: Moderate.
• Temp: 65–80°F. No frost—bring in if patio summering.
• Soil: Peat-based.
• Fertilizer: Monthly spring–fall, half-strength balanced liquid.

Maintenance

• Repot spring every 2–3 years or when crowded. Divide then if desired.

Propagation

Seeds spring (warm, constantly moist). Division of mature plants.

Evergreen, blooms spring–fall, easy care if kept wet.