Profile

SalsifyTragopogon porrifolius

Salsify is a nearly forgotten jewel of the monastery garden. Its delicate flavor, reminiscent of oysters, makes it a true delicacy among winter vegetables. This biennial plant forms a sturdy taproot in its first year, followed by beautiful purple flower heads in the second year that open only during morning sunshine.

Salsify (Tragopogon porrifolius): plant portrait for plant portrait - Vegetables, Daisy family, Harvest Jan, Feb, Oct, Nov
Salsify: plant portrait. harvest: Jan, Feb, Oct, Nov, Dec.

Quick profile

Key data

Harvest

Oct, Nov, Dec, Jan, Feb

Water

medium

Good neighbors

AlliumOnionCarrotOnion

Avoid

ScorzoneraLettuceBlack Salsify

Growing data

Salsify Growing data

Seed depth

2 - 3 cm

Plant spacing

8 - 12 cm

Row spacing

25 - 30 cm

Germination temp

10 - 20 °C

Sowing and germination

Seed depth2 - 3 cm
Germination temp10 - 20 °C
Germination time10 - 20 days
Seed viability1 - 2 years
Light germinatorNo
Dark germinatorYes
Cold germinatorNo
Stratification neededNo
Pre-soaking recommendedNo
Direct sowing possibleYes
Pre-culture recommendedNo

Planting and spacing

Plant spacing8 - 12 cm
Row spacing25 - 30 cm
Plants per m²30 - 40 per m²
Bed widthfrom 60 cm
Spacing1/9

Temperature and site

Soil temperature8 - 15 °C
Growing temperaturefrom 5 °C
Optimal temperature15 - 22 °C
Frost sensitiveNo
Late frost sensitiveNo
Heat tolerancemedium
Cold tolerancehigh

Water, nutrients and care

Watermedium
Critical water phasesGermination phase, Main root growth in summer
Watering methodbase watering
Droughtmedium
Waterlogging sensitiveYes
Mulching recommendedYes
Nutrient needmedium_feeder
Compost recommendedYes
Fertilizer sensitivitymedium

Container, support and growth

Container suitableYes
Pot sizeVolume: from 10 l; Recommended: from 15 l; Diameter: from 25 cm; Depth: from 40 cm
SupportNo
Height60 - 120 cm
Width20 - 30 cm
Root depth20 - 30 cm
Root spread5 - 8 cm
Yield0.05 - 0.1 kg

Year plan

Salsify Calendar

All plants
Indoor sowingDirect sowingPlantingHarvest

Indoor sowing

No data

Pre-culture not recommended as roots are easily damaged during transplanting.

Direct sowing

MarAprMay

Early sowing from March encourages root development before summer heat.

Planting

No data

Direct sowing is preferred for straight root development.

Harvest

OctNovDecJanFeb

Frost hardy; harvest as needed from autumn through early spring.

Year plan
  1. Sowing
  2. Thinning

Growing

Salsify Site, soil and care

Spacing

8 - 12 cm

Storage

Storage methods: Leave in the ground (hardy), Heeling in moist sand, Cold storage

Milky sap: The milky sap of the root stains hands brown; wear gloves or peel under running water.

Pruning

Salsify Pruning

Deadheading and foliage management

Goal

Deadheading and foliage management

Pruning timing

summer

JunJulAug

Preventing premature bolting Remove flower stalks immediately so energy is directed to the root.

Remove

  • Flower stalks in the first year (if present)
  • Yellowed or diseased leaves
  • Seed heads in the second year to prevent self-seeding

Preserve

  • Healthy leaf rosette in the first year
  • Heart leaves for continuous growth

Avoid

  • Radical cutting of healthy leaves
  • Damaging the root crown

Tools and hygiene

Use clean knives to prevent rot at the root crown.

Companion guide

Salsify Companion guide

Companion guide

Good neighbors

AlliumOnionCarrotOnion

Avoid

ScorzoneraLettuceBlack Salsify

Health

Pests, Diseases

Deficiencies

Boron deficiency

Heart rot, cracked root surfaces.

Plant health

FAQ

Why are my salsify roots so branched?

This is usually due to stony soil or the use of fresh manure before sowing.

Can I leave salsify in the bed during winter?

Yes, it is completely frost-hardy and often tastes even milder after exposure to frost.

Related plants

Black Salsify

Same family

Both are Asteraceae with edible roots.

Parsnip

Same crop group

Deep-rooting vegetable.

Lettuce

Shared diseases

Susceptible to powdery mildew.

Carrot

Similar nutrient needs

Both are medium feeders.

Leek

Similar water needs

Both require consistent moisture for best quality.

Sources

Public sources

  1. Wikidata entity

    Wikidata · 2026-05-13

  2. GBIF species match

    GBIF · 2026-05-13

  3. Deutschsprachige Wikipedia: Haferwurzel

    Wikipedia · 2026-05-13

  4. English Wikipedia: Tragopogon porrifolius

    Wikipedia · 2026-05-13

Details

More public plant data

Names
Common

Salsify

Plural

Salsifies

BotanicalTragopogon porrifolius
Botanical authorL.
Synonyms
  1. Purple Salsify
  2. Common Salsify
  3. Oyster Plant
  4. Vegetable Oyster
  5. Goat's Beard
  6. Jerusalem Star
  7. Jack-go-to-bed-at-noon
Common synonyms
  1. Purple Salsify
  2. Common Salsify
  3. Oyster Plant
  4. Vegetable Oyster
  5. Goat's Beard
  6. Jerusalem Star
Regional names
Historical names
  1. Haberwurzel
Market names
  1. Salsify
  2. Purple Salsify
Misspellings
  1. Haberwurz
International names
Fr
  1. Salsifis cultivé
  2. Salsifis à feuilles de poireau
Es
  1. Salsifí
  2. Barba de cabra
It
  1. Scorzobianca
  2. Tragopogo
Pl
  1. Kozibród porolistny
Ambiguous names
  1. NameAusternpflanze
    Languagede
    Shared with
    1. Mertensia maritima
    Clarification

    In culinary contexts this refers to the root of Tragopogon porrifolius, but botanically it usually refers to Mertensia maritima.

Search terms
  1. Salsify
  2. growing salsify
  3. vegetable oyster seeds
  4. purple salsify
Taxonomy
KingdomPlantae
Clades
  1. Tracheophyta
  2. Angiosperms
  3. Eudicots
  4. Asterids
OrderAsterales
Family botanicalAsteraceae
Family

Daisy family

Family idasteraceae
SubfamilyCichorioideae
TribeCichorieae
GenusTragopogon
SpeciesTragopogon porrifolius
Hybrid statusnot_hybrid
Related crops
  1. Scorzonera hispanica
  2. Tragopogon pratensis
Classification
Main groupVegetables
Sub groupRoot Vegetables
Crop groupRoot and tuber crops
Life cyclebiennial
Perennialno
Woodyno
Treeno
Shrubno
Edible parts
  1. Root
  2. Young shoots
  3. Flower buds
Nutrient groupMedium-feeder
Calendar
Sowing indoor
Notes

Pre-culture not recommended as roots are easily damaged during transplanting.

Sowing outdoor
Months
  1. 3
  2. 4
  3. 5
Earliest month3
Latest month5
Notes

Early sowing from March encourages root development before summer heat.

Planting out
Notes

Direct sowing is preferred for straight root development.

Harvest
Months
  1. 10
  2. 11
  3. 12
  4. 1
  5. 2
Earliest month10
Latest month2
Notes

Frost hardy; harvest as needed from autumn through early spring.

Month tasks
3
  1. Prepare direct sowing in the open ground.

4
  1. Thin out seedlings to final spacing.

6
  1. Weed regularly and water during dry spells.

10
  1. Start of the main root harvest.

Month tasks structured
3
  1. Tasksowing
    Label

    Sowing

    Priorityhigh
    Months
    1. 3
    2. 4
    Notes

    Sow in rows 25-30 cm apart.

4
  1. Taskthinning
    Label

    Thinning

    Prioritymedium
    Months
    1. 4
    2. 5
    Notes

    Adjust spacing in the row to 10 cm.

Book content
Overview

Salsify is a nearly forgotten jewel of the monastery garden. Its delicate flavor, reminiscent of oysters, makes it a true delicacy among winter vegetables. This biennial plant forms a sturdy taproot in its first year, followed by beautiful purple flower heads in the second year that open only during morning sunshine.

Structured month tasks
3
  1. Tasksoil_preparation
    Label

    Soil loosening

    Priorityhigh
    Months
    1. 3
    Notes

    Loosen soil deeply to prevent forked roots.

11
  1. Taskharvesting
    Label

    Harvesting

    Prioritymedium
    Months
    1. 11
    2. 12
    3. 1
    Notes

    Dig up roots when soil is not frozen.

Cultivation specs
Seed
Seed depth cm min.2
Seed depth cm max.3
Light germinatorno
Dark germinatoryes
Cold germinatorno
Stratification neededno
Pre soaking recommendedno
Germination temperature c min.10
Germination temperature c max.20
Germination days min.10
Germination days max.20
Seed lifespan years min.1
Seed lifespan years max.2
Direct sowing possibleyes
Pre culture recommendedno
Spacing
Plant spacing cm min.8
Plant spacing cm max.12
Row spacing cm min.25
Row spacing cm max.30
Recommended density per sqm min.30
Recommended density per sqm max.40
Thinning distance10 cm
Min. bed width60 cm
Square foot gardening spacing1/9
Spacing notes

Close spacing results in smaller roots; wide spacing wastes area.

Growth dimensions
Height cm min.60
Height cm max.120
Width cm min.20
Width cm max.30
Root depth cm min.20
Root depth cm max.30
Root spread cm min.5
Root spread cm max.8
Growth speedmedium
Final size notes

Forms leaf rosette and root in the first year, flowers in the second.

Temperature
Min. growing temperature5 °C
Optimal temperature c min.15
Optimal temperature c max.22
Max. heat tolerance30 °C
Soil temperature for sowing c min.8
Soil temperature for sowing c optimal15
Frost sensitiveno
Late frost sensitiveno
Heat tolerancemedium
Cold tolerancehigh
Temperature notes

Roots are frost hardy and can overwinter in the ground.

Water
Water needmedium
Critical water phases
  1. Germination phase
  2. Main root growth in summer
Drought tolerantno
Drought sensitivitymedium
Waterlogging sensitiveyes
Mulching recommendedyes
Water notes

Consistent moisture prevents roots from becoming woody.

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

Avoid fresh manure as it may attract carrot fly.

Container
Container suitableyes
Min. pot volume10 l
Recommended pot volume15 l
Min. pot depth40 cm
Min. pot diameter25 cm
Plants per container min.1
Plants per container max.3
Drainage requiredyes
Repotting neededno
Container notes

Requires very deep containers for the taproot.

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

No support needed in the first year.

Cultivation modes
Outdoor bed suitableyes
Raised bed suitableyes
Container suitableyes
Balcony suitableyes
Greenhouse suitableno
Polytunnel suitableno
Indoor suitableno
Windowsill suitableno
Hydroponic possibleno
Permaculture suitableyes
No dig suitableyes
Yield density
Yield per plant min.0.05
Yield per plant max.0.1
Yield unitkg
Yield per sqm min.1.5
Yield per sqm max.3
Yield reliabilityhigh
Yield notes

Yield refers to cleaned roots.

Site
Exposuresunny
Shelter neededno
Microclimate notes

Sunny locations enhance the root's flavor.

Soil
Soil typesandy loam
PH min.6
PH max.7.5
Depth requirementdeep
Soil notes

Deep, stone-free and rich in humus; avoid waterlogging.

Watering
Frequencyregular
Method

soil level

Notes

Never let the soil dry out completely.

Nutrition
Main fertilizercompost
Additional notes

Work in well-rotted compost before sowing.

Cultivation planning
Succession sowing
Possibleno
Bed planning notes

Do not plant after other Asteraceae like lettuce or black salsify.

Rotation prioritymedium
Interplanting potentialhigh
Mechanization relevancelow
Crop rotation
Rotation period years4
Previous crops favorable
  1. Leeks
  2. Onions
  3. Cereals
Previous crops unfavorable
  1. Black Salsify
  2. Lettuce
  3. Jerusalem Artichoke
  4. Other Asteraceae
Successive crops favorable
  1. Heavy feeders in following year
  2. Brassicas
Notes

Maintain a 3-4 year rotation break from other Asteraceae due to risks of soil-borne diseases like Powdery Mildew and Sclerotinia.

Deficiencies
Boron
Name

Boron deficiency

Symptoms

Heart rot, cracked root surfaces.

Problems
Forking
Name

Forking / Root branching

Cause

Stony soil or fresh manure.

Problem management
Common pest groups
  1. Root flies
  2. Aphids
  3. Voles
Common disease groups
  1. Mildew fungi
  2. Rust fungi
  3. Rot pathogens
Prevention principles
  1. Do not use fresh manure.
  2. Deep soil loosening before sowing.
  3. Strictly follow crop rotation.
  4. Use insect netting against carrot flies.
Diagnosis notes

If wilting occurs despite moisture, always check the root for feeding damage.

Disease graph
ScopeTragopogon porrifolius care
Profiles
  1. Slugalbugo_tragopogonis
    Severitymedium
    Conditions
    1. Warm, humid weather
    2. High air humidity
    Affected parts
    1. Leaves
    Prevention
    1. Wide spacing
    2. Weed control
    Organic control
    1. Removing infected leaves
    2. Horsetail extract
Diagnostic rules
  1. Symptom

    Root is branched or crooked

    Possible causes
    1. rocky_soil
    2. fresh_manure
    3. transplanting_damage
    First checks
    1. Check soil quality (stones?)
    2. Clarify fertilization history
    3. Was the plant transplanted?
Prevention strategy
Cultural
  1. Site selection: sunny and airy
  2. Soil preparation: loosen at least 30cm deep
Monitoring
  1. Check for white coating on leaves from June onwards
Organic first response
  1. Apply netting from May
  2. Sticky traps for monitoring
Notes

Salsify is generally more robust against diseases compared to black salsify.

Diagnosis
Common issues
  1. Symptom

    Root tastes bitter or is woody

    Cause

    Water deficiency during growth or late harvest (bolting).

Phenology
Stages
  1. Germination
  2. Leaf rosette formation
  3. Root thickening
  4. Overwintering
  5. Bolting (in second year)
  6. Flowering
  7. Seed maturation
Notes

Biennial plant; vegetative development (root) occurs in the first year, generative (flower/seed) in the second.

Flowering pollination
Flowering period

May to July (in the second year)

Flower color

Purple-violet

Harvest
Harvest window

October to February

Main harvest month

November

Harvest details
Harvest frequency

Single harvest per plant (root); leaves and buds can be harvested continuously.

Harvest indicators
  1. Root has reached a diameter of approx. 2-3 cm
  2. Foliage begins to die back in late autumn
  3. Harvest window from October reached
Post harvest handling

Dig up roots carefully to avoid damaging the delicate skin; brush off soil loosely.

Storage
Storage methods
  1. Leave in the ground (hardy)
  2. Heeling in moist sand
  3. Cold storage
Storage details
General storage category

Cool root vegetable storage

Storage life

In the ground all winter; in a cellar in sand approx. 2-4 months.

Processing options
  1. Freezing (after blanching)
  2. Pickling
  3. Fermenting
Processing use
Culinary value

High; considered a delicacy with an oyster-like flavor.

Kitchen usage
Preparation tips

Peel roots under running water or peel after boiling to avoid staining hands with the milky sap.

Flavor profile

Mild, sweet, nutty, reminiscent of oysters or artichokes.

Safety and edibility
Edible parts
  1. Root
  2. Young shoots
  3. Leaves
  4. Flower buds
Inedible or caution parts
  1. Old, woody stems in the second year
Toxicity notes

No known toxicity; contains inulin, which may cause flatulence in sensitive individuals.

Raw consumption

Young roots can be eaten finely grated in salads.

Seed saving
Difficulty

Medium

Isolation distance

500 m to other stands of Tragopogon porrifolius.

Seed saving advanced
Method

Leave the best roots in the ground or replant in spring. Harvest seeds as soon as the fluffy dandelion-like heads form.

Seed cleaning

Separate seeds from the pappus hairs (parachutes) and store dry.

Varieties
  1. NameSandwich Island Mammoth
    Description

    The most common variety featuring thick, whitish roots and excellent flavor.

Woody crop details
Notes

As this is a herbaceous root vegetable, grafting or training systems are not applicable.

Ecology
Pollinator valuehigh
Wildlife valuemedium
Biodiversity notes

In the second year, the flowers provide ample nectar for wild bees and hoverflies. The seed heads serve as a food source for birds.

Practical notes
Milky sap

The milky sap of the root stains hands brown; wear gloves or peel under running water.

Seasonal content
Spring

Time for direct sowing in a deeply prepared bed.

Winter

Harvest time! Roots can be dug up all winter long.