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Nut-grass

Cyperus rotundus

Onion weeds, Purple nut sedge, Red nut sedge (Eng.), Uintjies (Afr.)

Nut-grass is an extremely tough weed, very strong in structure and very difficult to erase. It has triangular shaped thick stems, topped with three leaves, the root system is extremely tough, sending out underground runners containing bulbs, which can regenerate new plants quickly, covering a large area in one season. The seed can stay dormant for long times until the soil is disturbed and it acts as a pioneer quickly covering the area.

Planning

Difficulty
Easy
Flowering time
Summer, Autumn, Spring
Fruiting time
Summer, Autumn, Spring

Harvesting

The best way to eradicate nut-grass is to physically dig it out of the ground or lawn, making sure to follow and remove the root system and bulbs as you go. Continue after every re-emergence where some of the roots or bulbs were left in the ground. Remove again, always trying to remove everything.

Propagation

Seed
Spread easily by seeds. Seed is said to be dormant in soil up to 70 years!
Suckers
The roots will send new suckers all around the area of a mother plant.
Bulbs
Small bulb-lets remain in the soil when pulling up the grass and will grow into new plants.

Special features

Geography

Origin
Africa, southern and central Europe, north to France and Austria, and southern Asia.
Natural climate
Temperate

Environment

Light
Full Sun, Partial Sun
Soil moisture
Moist
Soil type
Clay, Loam, Sand
Soil PH preference
Neutral
Frost hardiness
Half-Hardy

Uses

Medicinal
The plant is used in traditional Chinese medicine.
Edible
Despite the bitter taste of the tubers, they are edible and have nutritional value, the plant is known to have been eaten in Africa in famine-stricken areas. It is often described for the nutty flavor hence the common name nut-grass or nut-sedge.

Personality

Family
Cyperaceae
Flower colour
Brown
Scent
None

Problems

Generally problem free

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