Profile

Tiger NutCyperus esculentus

Tiger nut is an unusual sedge prized for its nutty-sweet root tubers. In Central Europe, it is mostly cultivated as an annual, as it requires significant warmth to reach its full potential. The plants form dense, grass-like clumps that are ideal for container gardening on sunny balconies.

Tiger Nut (Cyperus esculentus): plant portrait for plant portrait - Vegetables, Sedges, Harvest Oct, Nov
Tiger Nut: plant portrait. harvest: Oct, Nov.

Quick profile

Key data

Planting

May, Jun

Harvest

Oct, Nov

Water

medium

Good neighbors

LettuceRadish

Avoid

potato

Growing data

Tiger Nut Growing data

Seed depth

2 - 5 cm

Plant spacing

25 - 35 cm

Row spacing

30 - 45 cm

Germination temp

15 - 25 °C

Sowing and germination

Seed depth2 - 5 cm
Germination temp15 - 25 °C
Germination time14 - 28 days
Seed viability2 - 5 years
Light germinatorNo
Dark germinatorYes
Cold germinatorNo
Stratification neededNo
Pre-soaking recommendedYes
Direct sowing possibleYes
Pre-culture recommendedYes

Planting and spacing

Plant spacing25 - 35 cm
Row spacing30 - 45 cm
Plants per m²8 - 12 per m²
Bed widthfrom 60 cm
Spacing1 per square

Temperature and site

Soil temperature15 - 20 °C
Growing temperaturefrom 12 °C
Optimal temperature20 - 30 °C
Frost sensitiveYes
Late frost sensitiveYes
Heat tolerancehigh
Cold tolerancelow

Water, nutrients and care

Watermedium
Critical water phasesTuber formation in late summer
Watering methodbase watering
Droughtlow
Waterlogging sensitiveYes
Mulching recommendedYes
Nutrient needmedium_feeder
Compost recommendedYes
Fertilizer sensitivitylow

Container, support and growth

Container suitableYes
Pot sizeVolume: from 10 l; Recommended: from 20 l; Diameter: from 30 cm; Depth: from 25 cm
SupportNo
Height30 - 60 cm
Width20 - 40 cm
Root depth15 - 30 cm
Root spread20 - 50 cm
Yield0.1 - 0.5 kg

Year plan

Tiger Nut Calendar

All plants
Indoor sowingDirect sowingPlantingHarvest

Indoor sowing

MarApr

Pre-cultivation in pots accelerates the development of heat-loving tubers.

Direct sowing

May

Direct sowing only after the last frost once the soil has warmed up sufficiently.

Planting

MayJun

Planting out pre-cultivated seedlings mid to late May.

Harvest

OctNov

Harvest when the foliage withers and turns brown.

Year plan
  1. Pre-cultivation
  2. Planting out
  3. Main harvest

Growing

Tiger Nut Site, soil and care

Spacing

25 - 35 cm

Storage

Storage conditions: Dry, cool, and dark., Storage temperature c: 10

  • Title: Harvest Tip, Text: Use a fine-mesh sieve to sift the small tubers out of the soil.

Pruning

Tiger Nut Pruning

herbaceous_management

Goal

herbaceous_management

Pruning timing

autumn

OctNov

Harvest preparation Only remove foliage once it has completely withered to ensure maximum nutrient storage in the tubers.

Remove

  • Dried foliage in late autumn
  • Dead leaf tips during the season

Preserve

Green, active foliage for photosynthesis and tuber formation

Avoid

  • Pruning during the main growth phase in summer
  • Damaging rhizomes while weeding

Tools and hygiene

Use clean pruning shears for removing residual foliage to prevent disease transmission.

Companion guide

Tiger Nut Companion guide

Companion guide

Good neighbors

LettuceRadish

Avoid

potato

Health

Pests, Diseases

Plant health

FAQ

Are tiger nuts hardy in Germany?

Usually not. The foliage dies back with the first frost. Tubers may survive in mild areas but are typically replanted annually.

Related plants

Purple nutsedge

Same family

Closely related but often considered a weed.

Sources

Public sources

  1. Wikidata entity

    Wikidata · 2026-05-13

  2. GBIF species match

    GBIF · 2026-05-13

  3. Deutschsprachige Wikipedia: Erdmandel

    Wikipedia · 2026-05-13

  4. English Wikipedia: Cyperus esculentus

    Wikipedia · 2026-05-13

Details

More public plant data

Names
Common

Tiger Nut

Plural

Tiger Nuts

BotanicalCyperus esculentus
Botanical authorL.
Scientific synonyms
  1. Cyperus tuberosus
  2. Cyperus repens
  3. Cyperus phymatodes
  4. Chlorocyperus aureus
Synonyms
  1. Earth Almond
  2. Chufa Sedge
  3. Yellow Nutgrass
  4. Yellow Nutsedge
Common synonyms
  1. Earth Almond
  2. Chufa Sedge
  3. Yellow Nutgrass
Regional names
  1. Watergrass
  2. Galingale
Historical names
  1. Earthnut
Trade names
  1. Chufa
  2. Tiger Nuts
Market names
  1. Tiger Nuts
  2. Chufas
Misspellings
  1. Cyperus esculantis
International names
Fr
  1. Amande de terre
  2. Souchet comestible
Es
  1. Chufa
  2. Almendra de tierra
It
  1. Mandorla di terra
  2. Zigolo dolce
Ambiguous names
  1. NameErdnuss
    Languagede
    Shared with
    1. Arachis hypogaea
    Clarification

    Not to be confused with the peanut (Arachis hypogaea).

Search terms
  1. Tiger Nut
  2. Cyperus esculentus
  3. Earth Almond
Taxonomy
KingdomPlantae
Clades
  1. Tracheophyta
  2. Angiosperms
  3. Monocots
  4. Commelinids
OrderPoales
Family botanicalCyperaceae
Family

Sedges

Family idcyperaceae
SubfamilyCyperoideae
TribeCypereae
GenusCyperus
SpeciesCyperus esculentus
Hybrid statusnot_hybrid
Related crops
  1. Cyperus papyrus
  2. Cyperus rotundus
Classification
Main groupVegetables
Sub groupRoot and Tuber Vegetables
Crop groupTubers
Life cyclePerennial (treated as annual in Central Europe)
Perennialyes
Woodyno
Treeno
Shrubno
Edible parts
  1. Tubers
Nutrient groupCarbohydrates/Fats
Calendar
Sowing indoor
Months
  1. 3
  2. 4
Earliest month3
Latest month4
Notes

Pre-cultivation in pots accelerates the development of heat-loving tubers.

Sowing outdoor
Months
  1. 5
Earliest month5
Latest month5
Notes

Direct sowing only after the last frost once the soil has warmed up sufficiently.

Planting out
Months
  1. 5
  2. 6
Earliest month5
Latest month6
Notes

Planting out pre-cultivated seedlings mid to late May.

Harvest
Months
  1. 10
  2. 11
Earliest month10
Latest month11
Notes

Harvest when the foliage withers and turns brown.

Month tasks
3
  1. Start pre-cultivation indoors

5
  1. Planting out in the garden

7
  1. Water regularly and remove weeds

10
  1. Start harvesting after first frost or wilting

Month tasks structured
3
  1. Tasksowing
    Label

    Pre-cultivation

    Prioritymedium
    Months
    1. 3
    2. 4
    Notes

    Soak tubers in water for 24 hours before planting.

5
  1. Taskplanting
    Label

    Planting out

    Priorityhigh
    Months
    1. 5
    Notes

    Maintain a spacing of 30 cm.

10
  1. Taskharvesting
    Label

    Main harvest

    Priorityhigh
    Months
    1. 10
    2. 11
    Notes

    Carefully sift the tubers out of the soil.

Book content
Overview

Tiger nut is an unusual sedge prized for its nutty-sweet root tubers. In Central Europe, it is mostly cultivated as an annual, as it requires significant warmth to reach its full potential. The plants form dense, grass-like clumps that are ideal for container gardening on sunny balconies.

Structured month tasks
4
  1. Taskpreparation
    Label

    Bed preparation

    Prioritymedium
    Months
    1. 4
    Notes

    Enrich light, sandy soil with compost.

6
  1. Taskmaintenance
    Label

    Earthing up

    Prioritylow
    Months
    1. 6
    2. 7
    Notes

    Slight earthing up can encourage yield.

Cultivation specs
Seed
Seed depth cm min.2
Seed depth cm max.5
Light germinatorno
Dark germinatoryes
Cold germinatorno
Stratification neededno
Pre soaking recommendedyes
Germination temperature c min.15
Germination temperature c max.25
Germination days min.14
Germination days max.28
Seed lifespan years min.2
Seed lifespan years max.5
Direct sowing possibleyes
Pre culture recommendedyes
Spacing
Plant spacing cm min.25
Plant spacing cm max.35
Row spacing cm min.30
Row spacing cm max.45
Recommended density per sqm min.8
Recommended density per sqm max.12
Min. bed width60 cm
Square foot gardening spacing1 per square
Spacing notes

Plants spread in a clump-forming manner.

Growth dimensions
Height cm min.30
Height cm max.60
Width cm min.20
Width cm max.40
Root depth cm min.15
Root depth cm max.30
Root spread cm min.20
Root spread cm max.50
Growth speedmedium
Final size notes

Grass-like growth, forms underground runners with tubers.

Temperature
Min. growing temperature12 °C
Optimal temperature c min.20
Optimal temperature c max.30
Max. heat tolerance40 °C
Soil temperature for sowing c min.15
Soil temperature for sowing c optimal20
Frost sensitiveyes
Late frost sensitiveyes
Heat tolerancehigh
Cold tolerancelow
Temperature notes

Originates from warm regions; frost kills the above-ground foliage.

Water
Water needmedium
Critical water phases
  1. Tuber formation in late summer
Drought tolerantyes
Drought sensitivitylow
Waterlogging sensitiveyes
Mulching recommendedyes
Water notes

Consistent moisture promotes tuber development, avoid waterlogging.

Nutrition
Nutrient groupmedium_feeder
Heavy feederno
Medium feederyes
Light feederno
Nitrogen needmedium
Phosphorus needmedium
Potassium needhigh
Calcium needlow
Magnesium needlow
Compost recommendedyes
Mulching recommendedyes
Fertilizer sensitivitylow
Nutrition notes

Potassium-heavy fertilization supports tuber ripening.

Container
Container suitableyes
Min. pot volume10 l
Recommended pot volume20 l
Min. pot depth25 cm
Min. pot diameter30 cm
Plants per container min.1
Plants per container max.3
Drainage requiredyes
Repotting neededno
Container notes

Excellent for containers; facilitates harvesting by tipping out.

Support
Needs supportno
Support recommendedno
Climbingno
Viningno
Trellis recommendedno
Training requiredno
Support notes

Stable, upright growing sedge.

Cultivation modes
Outdoor bed suitableyes
Raised bed suitableyes
Container suitableyes
Balcony suitableyes
Greenhouse suitableyes
Polytunnel suitableyes
Indoor suitableno
Windowsill suitableno
Hydroponic possibleno
Permaculture suitableyes
No dig suitableyes
Yield density
Yield per plant min.0.1
Yield per plant max.0.5
Yield unitkg
Yield per sqm min.1
Yield per sqm max.3
Yield reliabilitymedium
Yield notes

Yield depends heavily on summer warmth.

Site
Exposurefull sun
Wind protection neededno
Site notes

Prefers full sun, warm and sheltered locations.

Soil
Soil typesandy loam
PH min.5.5
PH max.7
Drainage importancehigh
Soil notes

Light, sandy soils are ideal for tuber development and easy harvesting.

Watering
Strategyregular
Drought responsestunted growth
Watering notes

Water regularly during dry spells to ensure tuber formation is not interrupted.

Nutrition
Strategymoderate fertilization
Organic preferredyes
Nutrition notes

Incorporate well-rotted compost at planting; excessive nitrogen only promotes foliage.

Cultivation planning
Succession sowing
Possibleno
Bed planning notes

Can become invasive if tubers remain in the ground; in cool regions usually limited by frost.

Rotation prioritymedium
Interplanting potentiallow
Mechanization relevancemedium
Crop rotation
Rotation break years3
Preceding crops
  1. Legumes
  2. Early radishes
  3. Lettuce
Following crops
  1. Light feeders
  2. Green manure
Notes

Since tiger nuts are harvested late, following crops are usually planted the next spring.

Deficiencies
Nitrogen

Pale, light green foliage; stunted growth.

Potassium

Poor tuber formation, weak cell structure.

Problems
Weed competition

Tiger nuts grow slowly initially and are easily suppressed by weeds.

Invasiveness

Remaining tubers may sprout unintentionally the following year.

Problem management
Common pest groups
  1. Rodents
Common disease groups
  1. Fungal diseases (if too wet)
Prevention principles
  1. Strictly avoid waterlogging.
  2. Regular weeding during the early stages.
  3. Use of wire baskets against voles.
Diagnosis notes

Wilting leaves despite moist soil often indicate root problems or pests attacking the tubers.

Disease graph
ScopeCyperus esculentus specific
Profiles
  1. Slugrhizoctonia
    Severitymedium
    Conditions
    1. Cool, very wet weather
    2. Compacted soil
    Affected parts
    1. Roots
    2. Tubers
    Prevention
    1. Improve soil aeration
    2. Observe crop rotation
    Organic control
    1. Remove affected plants
    2. Loosen soil
Diagnostic rules
  1. Symptom

    Yellow leaf tips

    Possible causes
    1. waterlogging
    2. nutrient_deficiency
    First checks
    1. Check soil moisture
    2. Review fertilization
Prevention strategy
Cultural
  1. Ridge cultivation for better drainage
  2. Pre-cultivation for strengthening
Monitoring
  1. Check for vole tunnels from August onwards
Organic first response
  1. Reduce watering
  2. Remove weeds mechanically
Notes

Tiger nuts are generally very robust and not very susceptible to diseases.

Diagnosis
Leaf yellowing

Often a sign of nitrogen deficiency or overly wet conditions.

Stunted growth

Usually due to lack of light or temperatures being too low.

Phenology
Stages
  1. Tuber germination
  2. Vegetative growth of grass-like foliage
  3. Stolon formation (rhizomes)
  4. Formation of new daughter tubers at rhizome ends
  5. Flowering (rare in Central Europe)
  6. Senescence and yellowing of foliage in autumn
Notes

In Central Europe, the growth cycle is usually terminated by the first frosts before the plant can fully mature.

Flowering pollination
Flowering period
Months
  1. 7
  2. 8
  3. 9
Notes

Rarely flowers in cooler regions; propagation occurs primarily vegetatively via tubers.

Flower description

Inconspicuous, yellowish-brown spikelets in a terminal umbel.

Harvest
Harvest period
Months
  1. 10
  2. 11
Notes

Harvesting occurs after the first frost or when the foliage has turned completely brown.

Yield estimate

Up to 500g per plant under ideal conditions.

Harvest details
Harvest frequency

Single main harvest at the end of the season.

Harvest indicators
  1. Foliage is completely withered and brown
  2. Tubers have developed their typical brown, wrinkled skin
  3. First frost has stopped growth
Post harvest handling

Wash tubers thoroughly, remove root remains, and dry in an airy spot until they become hard.

Storage
Storage conditions

Dry, cool, and dark.

Storage temperature10 °C
Storage details
General storage category

Dry storage

Storage life

Up to 2 years when dried.

Processing options
  1. Drying
  2. Milling into flour
  3. Roasting
  4. Pickling
Processing use
Preparation steps
  1. Soak for 12-24 hours before consumption (if dried)
  2. Clean with a brush
Kitchen usage
Culinary applications
  1. Raw as a snack
  2. Base for Horchata de Chufa (tiger nut milk)
  3. Ingredient in muesli or yogurt
  4. Gluten-free baking flour
Flavor profile

Sweet, nutty, reminiscent of almonds or hazelnuts.

Safety and edibility
Edible parts
  1. Underground tubers
Inedible or caution parts
  1. Green foliage (very fibrous and sharp-edged)
Toxicity notes

No known toxicity; safe for human consumption.

Raw consumption

Edible raw, but very hard when dried (soaking recommended).

Seed saving
Strategy

Maintenance by overwintering tubers.

Selection criteria
  1. Select largest and healthiest tubers
  2. No signs of rot
Seed saving advanced
Storage method

Store tubers in slightly damp sand in a frost-free cellar.

Viability check

Tubers should be firm and not give way under pressure.

Varieties
  1. Slugchufa-de-valencia
    NameChufa de Valencia
    Description

    Traditional Spanish variety, known for high oil content and sweet flavor; ideal for Horchata.

  2. Slugblack-tiger
    NameBlack Tiger
    Description

    Dark-skinned selection, often slightly larger and with an intense, nutty aroma.

Woody crop details
Rootstock relevancenot_applicable
Renewal pruning relevancenot_applicable
Notes

As a herbaceous sedge, tiger nut requires no grafting or woody pruning.

Ecology
Wildlife valuelow
Biodiversity notes

Provides little benefit for pollinators but can offer cover for small ground-dwelling organisms.

Practical notes
  1. Title

    Harvest Tip

    Text

    Use a fine-mesh sieve to sift the small tubers out of the soil.

Seasonal content
Spring

Time for pre-cultivation on the windowsill.

Autumn

After the first frost, the big sifting begins.