Full Sun
Easy care
Moderate watering
Frost Hardy
7a
USDA zone
-18°C
Minimum temperature
Expected size
Height | Spread | |
|---|---|---|
50cm | Max | 30cm |
20cm | Min | 10cm |
Flowering
spring
summer
autumn
winter
This plant has no fragrance
More images of Sea-Urchin Grass
Sea-Urchin Grass Overview
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.
Common problems with Sea-Urchin Grass
Generally problem free
How to harvest Sea-Urchin Grass
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.
How to propagate Sea-Urchin Grass
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 of Sea-Urchin Grass
Pioneer
Other uses of Sea-Urchin Grass
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.