Index / Search / Tragopogon pratensis
§1 Plant
Tragopogon pratensis L.
vernacular Jack-go-to-bed-at-noon — species · Asteraceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Biennial
- Group
- Dicot
- Family
- Asteraceae Bercht. & J. Presl
- Genus
- Tragopogon
§2a
Native status, by region
- CAN Canada Introduced
- L48 Lower 48 States Introduced
§2b
County-level range
· 196 counties across 13 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Medium
- Shade
- Medium
- Moisture use
- Medium
- Fire
- Low
- Salinity
- None
- Anaerobic
- None
- CaCO₃
- High
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -33 °F minimum
- Frost-free days
- 105 min.
- Precipitation
- 14–55 in/yr
- pH range
- 5.2–8
- Root depth
- 10 in min.
- Fertility need
- Medium
- Soil texture
- coarse, medium
§3c
Form & growth
- Growth form
- Single Crown
- Growth rate
- Rapid
- Lifespan
- Short
- Mature height
- 4 ft
- Foliage texture
- Coarse
- Foliage colour
- Green
- Porosity (summer)
- Porous
- Porosity (winter)
- Porous
- Flower colour
- White
- Fruit colour
- Brown
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Mid Spring
- Seed abundance
- Low
- Seed begins
- Spring
- Seed ends
- Summer
- Spread rate
- Rapid
- Stratify
- No
- Seeds / lb
- 30,000
- Propagation
- seed
§3e
Use & availability
- Commercial availability
- No Known Source
- Nursery stock
- No
- Palatable, human
- Yes
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 196 counties across 13 states/territories.
Arizona view state ↗ 4 I ▾
Kentucky view state ↗ 11 I ▾
Maine view state ↗ 11 I ▾
Massachusetts view state ↗ 12 I ▾
Montana view state ↗ 22 I ▾
- Beaverhead 30001
- Big Horn 30003
- Carbon 30009
- Carter 30011
- Chouteau 30015
- Deer Lodge 30023
- Flathead 30029
- Gallatin 30031
- Glacier 30035
- Judith Basin 30045
- Lake 30047
- Lewis and Clark 30049
- Madison 30057
- Meagher 30059
- Mineral 30061
- Missoula 30063
- Park 30067
- Phillips 30071
- Sweet Grass 30097
- Teton 30099
- Toole 30101
- Wheatland 30107
New Hampshire view state ↗ 8 I ▾
New Jersey view state ↗ 11 I ▾
New York view state ↗ 40 I ▾
- Albany 36001
- Bronx 36005
- Chemung 36015
- Columbia 36021
- Delaware 36025
- Dutchess 36027
- Erie 36029
- Essex 36031
- Genesee 36037
- Hamilton 36041
- Jefferson 36045
- Kings 36047
- Lewis 36049
- Livingston 36051
- Madison 36053
- Monroe 36055
- Nassau 36059
- New York 36061
- Niagara 36063
- Oneida 36065
- Onondaga 36067
- Ontario 36069
- Orange 36071
- Putnam 36079
- Queens 36081
- Rensselaer 36083
- Richmond 36085
- Rockland 36087
- Saratoga 36091
- Schoharie 36095
- St. Lawrence 36089
- Suffolk 36103
- Tioga 36107
- Tompkins 36109
- Ulster 36111
- Warren 36113
- Washington 36115
- Wayne 36117
- Westchester 36119
- Wyoming 36121
Pennsylvania view state ↗ 34 I ▾
- Allegheny 42003
- Bedford 42009
- Berks 42011
- Blair 42013
- Bradford 42015
- Bucks 42017
- Cambria 42021
- Centre 42027
- Chester 42029
- Crawford 42039
- Dauphin 42043
- Delaware 42045
- Erie 42049
- Huntingdon 42061
- Lackawanna 42069
- Lancaster 42071
- Lebanon 42075
- Lehigh 42077
- Luzerne 42079
- McKean 42083
- Monroe 42089
- Montgomery 42091
- Northampton 42095
- Philadelphia 42101
- Pike 42103
- Potter 42105
- Schuylkill 42107
- Somerset 42111
- Sullivan 42113
- Susquehanna 42115
- Tioga 42117
- Venango 42121
- Warren 42123
- Wayne 42127
Rhode Island view state ↗ 3 I ▾
Vermont view state ↗ 13 I ▾
Virginia view state ↗ 13 I ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/TRPR ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/5386897 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T05:45:41Z