Index / Search / Kalmia microphylla

§1 Plant

Kalmia microphylla (Hook.) A. Heller

vernacular alpine laurel — species · Ericaceae


USDA
KAMI
GBIF
2882998
Rank
species
alpine laurel (Kalmia microphylla)
Platephotograph · Milli VedderCC BY-NC source · iNaturalist ↗

§2Habit & range

Habit and range

Growth habit
Shrub, Subshrub
Duration
Perennial
Group
Dicot
Family
Ericaceae Juss.
Genus
Kalmia
§2a

Native status, by region

  • AK Alaska Native
  • CAN Canada Native
  • L48 Lower 48 States Native
§2b

County-level range

· 2 counties across 1 state
Legend Native · 2 Introduced · 0 Both · 0 Hover a county for detail.

§3Cultivation specs · USDA

Recorded by the USDA Plant Materials Program.

§3a

Tolerances

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

Climate & soil

Cold tolerance
-28 °F minimum
Frost-free days
85 min.
Precipitation
12–20 in/yr
pH range
6–7.3
Root depth
12 in min.
Fertility need
Low
Soil texture
coarse, medium
§3c

Form & growth

Growth form
Multiple Stem
Growth rate
Slow
Lifespan
Long
Mature height
1 ft
Height @ 20 y
1 ft
Foliage texture
Coarse
Foliage colour
Dark Green
Porosity (summer)
Moderate
Porosity (winter)
Moderate
Flower colour
Purple
Fruit colour
Brown
Fire resistant
No
N fixation
None
Toxicity
None
§3d

Reproduction

Bloom period
Late Spring
Seed abundance
Low
Seed begins
Summer
Seed ends
Summer
Spread rate
Slow
Stratify
No
Seeds / lb
25,000,000
Propagation
seed, cuttings, bare root, container
§3e

Use & availability

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

§4Counties, by state

Recorded in 2 counties across 1 state.


§5Sources & provenance

USDA PLANTS

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

plants.usda.gov/KAMI ↗

GBIF Backbone

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

gbif.org/species/2882998 ↗

Record version

Cached and built locally. Source version on this record:

usda-plants-mt-2026-05-25

fetched 2026-05-25T18:27:19Z