Yellow nutsedge
Cyperus esculentus · Cyperaceae
📷 Wilcox, Mike · CC BY 4.0
The gardener's calendar
Yellow nutsedge is in full bloom: enjoy it, watch watering in hot weather and let spent flowers feed pollinators before pruning.
ID card
- Scientific name
- Cyperus esculentus
- Family
- Cyperaceae
- Plant type
- Rhizomatous perennial herb
- Adult height
- 60 to 80 cm
- Flowering
- July to September
- Exposure
- Full sun
- Origin
- Africa, Mediterranean basin
- Edible parts
- Tubers (earth almonds)
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability low.
Expert tips
The key tip
While growing, soil must stay moist: plant in rich soil and water before it dries out completely.
The common mistake
Letting the soil dry out between waterings: gardeners mistakenly think "low water" applies to this plant, but it'll wither from drying out long before any frost.
The pro's trick
Harvest the tubers in November when the foliage yellows, then store them cool and dry over winter.
Seasonal watch
From late September, watch for the first frosts: at -5°C the leaves turn black.
Care
Watering
Chufa appreciates moist, well-drained soil. Keep the soil consistently moist during the growing season, especially in summer. Reduce watering in autumn and winter. Avoid prolonged water stagnation, which could promote rhizome rot.
Exposure and light
This plant thrives in full sun to optimize growth and tuber formation. A minimum of 6 to 8 hours of direct sunlight daily is recommended. It tolerates partial shade, but with reduced exposure, production will be less abundant.
Soil and potting mix
Chufa prefers light, sandy or loamy soils rich in organic matter. Neutral to slightly acidic pH is ideal. Improve the soil with well-decomposed compost before planting to promote drainage and nutrition.
Fertilization
Apply a balanced fertilizer once or twice a month during the growing season (spring and summer). A potassium-rich fertilizer can promote tuber development. Reduce or stop fertilizing in autumn when vegetation slows down.
Pruning and maintenance
No pruning is strictly necessary for plant health. You can cut back dried foliage in autumn after harvesting the tubers. Remove dead or damaged stems as needed to maintain a neat appearance.
Diseases and pests
Chufa is generally robust and rarely susceptible to diseases. Monitor rhizome rot in case of chronic overhumidity. Pests are rare, but aphids may occasionally appear on the foliage; spray with soapy water if necessary.
Did you know?
Chufa produces small underground tubers called "earth almonds" or "tiger nuts," known since ancient Egypt. These sweet and flavorful tubers were long a staple food in North Africa and the Mediterranean, and are still consumed today in certain regions as horchata (a traditional Spanish and Latin American beverage made from these tubers).
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
Add this plant to my garden →Plants from the same family
- Blue sedgeCarex panicea
- Spring sedgeCarex caryophyllea
- Pendulous sedgeCarex pendula
- Bird's-foot SedgeCarex ornithopoda
- Gray's sedgeCarex grayi
- Strict sedgeCarex stricta
Tips generated and checked by Viridia — adapt them to your local climate.