Index / Search / Pseudotsuga menziesii var. glauca
§1 Plant
Pseudotsuga menziesii (Mirb.) Franco var. glauca (Beissn.) Franco
vernacular Rocky Mountain Douglas-fir — variety · Pinaceae
§2Habit & range
Habit and range
- Growth habit
- Tree
- Duration
- Perennial
- Group
- Gymnosperm
- Family
- Pinaceae Spreng. ex Rudolphi
- Genus
- Pseudotsuga
§2a
Native status, by region
- CAN Canada Native
- L48 Lower 48 States Native
§2b
County-level range
· 57 counties across 7 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- High
- Shade
- Medium
- Moisture use
- Medium
- Fire
- None
- Salinity
- None
- Anaerobic
- Low
- CaCO₃
- Medium
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -32 °F minimum
- Frost-free days
- 65 min.
- Precipitation
- 22–45 in/yr
- pH range
- 5.9–7.2
- Root depth
- 26 in min.
- Fertility need
- Medium
- Soil texture
- coarse, medium
§3c
Form & growth
- Growth form
- Single Stem
- Growth rate
- Moderate
- Lifespan
- Long
- Mature height
- 110 ft
- Height @ 20 y
- 25 ft
- Foliage texture
- Medium
- Foliage colour
- Green
- Porosity (summer)
- Dense
- Porosity (winter)
- Dense
- Flower colour
- Yellow
- Fruit colour
- Brown
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Mid Spring
- Seed abundance
- High
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Slow
- Stratify
- Yes
- Seeds / lb
- 38,080
- Propagation
- seed, bare root, container
§3e
Use & availability
- Commercial availability
- Contracting Only
- Nursery stock
- No
- Browse palatability
- Low
- Graze palatability
- Low
- Palatable, human
- No
- Lumber
- Yes
- Fuelwood
- Medium
- Christmas tree
- No
§4Counties, by state
Recorded in 57 counties across 7 states/territories.
Arizona view state ↗ 10 N ▾
Colorado view state ↗ 23 N ▾
- Alamosa 08003
- Boulder 08013
- Conejos 08021
- Costilla 08023
- Custer 08027
- Dolores 08033
- Douglas 08035
- El Paso 08041
- Grand 08049
- Jefferson 08059
- La Plata 08067
- Lake 08065
- Larimer 08069
- Mesa 08077
- Mineral 08079
- Moffat 08081
- Montezuma 08083
- Montrose 08085
- Rio Blanco 08103
- Rio Grande 08105
- Routt 08107
- San Juan 08111
- Teller 08119
Minnesota view state ↗ 1 N ▾
Montana view state ↗ 4 N ▾
New Mexico view state ↗ 14 N ▾
New York view state ↗ 4 N ▾
Texas view state ↗ 1 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/PSMEG ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2685825 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T10:50:45Z