Index / Search / Penstemon whippleanus

§1 Plant

Penstemon whippleanus A. Gray

vernacular Whipple's penstemon — species · Scrophulariaceae


USDA
PEWH
GBIF
3171516
Rank
species
Whipple's penstemon (Penstemon whippleanus)
Platephotograph · Mac LewisCC BY-NC source · iNaturalist ↗

§2Habit & range

Habit and range

Growth habit
Forb/herb, Subshrub
Duration
Perennial
Group
Dicot
Family
Scrophulariaceae Juss.
Genus
Penstemon
§2a

Native status, by region

  • L48 Lower 48 States Native
§2b

County-level range

· 87 counties across 7 states/territories
Legend Native · 87 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

Drought
Medium
Shade
Medium
Moisture use
Medium
Fire
High
Salinity
None
Anaerobic
None
CaCO₃
High
Hedging
High
§3b

Climate & soil

Cold tolerance
-34 °F minimum
Frost-free days
117 min.
Precipitation
13–35 in/yr
pH range
7–8
Root depth
6 in min.
Fertility need
Low
Soil texture
coarse, medium
§3c

Form & growth

Growth form
Multiple Stem
Growth rate
Rapid
Lifespan
Short
Mature height
3 ft
Foliage texture
Medium
Foliage colour
Green
Porosity (summer)
Moderate
Porosity (winter)
Porous
Flower colour
Purple
Fruit colour
Brown
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Late Summer
Seed abundance
High
Seed begins
Fall
Seed ends
Fall
Spread rate
Moderate
Stratify
Yes
Seeds / lb
800,000
Propagation
seed, container
§3e

Use & availability

Commercial availability
Contracting Only
Nursery stock
Yes
Browse palatability
High
Graze palatability
High
Palatable, human
No
Protein potential
High
Lumber
No
Christmas tree
No

§4Counties, by state

Recorded in 87 counties across 7 states/territories.

Arizona view state ↗ 2 N
Colorado view state ↗ 32 N
Idaho view state ↗ 7 N
Montana view state ↗ 2 N
New Mexico view state ↗ 10 N
Utah view state ↗ 24 N
Wyoming view state ↗ 10 N

§5Sources & provenance

USDA PLANTS

Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.

plants.usda.gov/PEWH ↗

GBIF Backbone

Canonical taxonomic identity, synonym resolution, cross-refs. CC0.

gbif.org/species/3171516 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-26

fetched 2026-05-26T20:46:58Z