Index / Search / Rhododendron lapponicum
§1 Plant
Rhododendron lapponicum (L.) Wahlenb.
vernacular Lapland rosebay — species · Ericaceae
§2Habit & range
Habit and range
- Growth habit
- Shrub
- Duration
- Perennial
- Group
- Dicot
- Family
- Ericaceae Juss.
- Genus
- Rhododendron
§2a
Native status, by region
- AK Alaska Native
- CAN Canada Native
- GL Greenland Native
- L48 Lower 48 States Native
§2b
County-level range
· 17 counties across 4 states/territories§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Shade
- Low
- Fire
- Medium
- Hedging
- Low
§3b
Climate & soil
- Cold tolerance
- -62 °F minimum
- Frost-free days
- 60 min.
- Precipitation
- 10–50 in/yr
- pH range
- 4.4–6.1
- Root depth
- 24 in min.
- Fertility need
- Medium
- Soil texture
- coarse
§3c
Form & growth
- Growth rate
- Moderate
- Lifespan
- Short
- Mature height
- 3 ft
- Height @ 20 y
- 4 ft
- Foliage texture
- Coarse
- Foliage colour
- Green
- Flower colour
- Purple
- Fruit colour
- Yellow
- Fire resistant
- No
- N fixation
- None
- Toxicity
- Severe
§3d
Reproduction
- Bloom period
- Late Spring
- Stratify
- Yes
- Propagation
- seed, cuttings, corm, sprigs
§3e
Use & availability
- Nursery stock
- No
- Browse palatability
- Low
- Graze palatability
- Low
- Palatable, human
- No
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 17 counties across 4 states/territories.
Alaska view state ↗ 12 N ▾
New York view state ↗ 1 N ▾
Vermont view state ↗ 1 N ▾
Wisconsin view state ↗ 3 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/RHLA2 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2883075 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z