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Care of the plant Isolepis cernua or Fiber optic grass.

Care of the rhizomatous plant Isolepis cernua or Fiber optic grass

The genus Isolepis, family Cyperaceae, comprises 75 species of small herbaceous plants native to tropical regions of Australasia, Eurasia and Africa. Some species are: Isolepis cernua, Isolepis carinata, Isolepis setacea, Isolepis inundata, Isolepis acuminata.

Common names: Fiber optic grass, Low bulrush, Slender club-rush, Tufted clubrush. This species is native to parts of Australasia, Eurasia, Africa, and North and South America.

They are rhizomatous plants of elegant bearing that produce plumes of cylindrical leaves (like rushes) that reach 25 cm (9.84") in length and arch with age. The tiny white flowers appear on the tips of the leaves and contrast with the green color of the leaves. They can bloom at different times of the year.

They are used as houseplants in hanging pots, in ponds, in lagoons or by the sea. If they are grown in water, it will not exceed 5 cm in height. It combines very well with plants of the Cyperus and Equisetum genus.

Isolepis cernua requires illuminated exposure without direct sun and temperatures above 7 ºC (44.6"); between 7-13 ºC (44-55 ºF) it will enter a resting period. Outdoors they also grow in the shade.

The soil must retain moisture and contain organic matter. Planting or transplanting is done in spring.

Water frequently so that the substrate is always wet. Place the pot in a container with water, especially in hanging pots. Below 13 ºC (5.11 ºF), water only to prevent the substrate from drying out completely.

Fertilize monthly with liquid mineral fertilizer during spring and summer.

Prune lightly in spring to control growth.

They are resistant plants to the usual pests and diseases. They are toxic by ingestion.

They propagate by division in spring or from seeds sown in spring.

Images of the rhizomatous plant Isolepis cernua or Fiber optic grass

Isolepis cernua
Isolepis cernua