Bog Laurel

Kalmia polifolia

Native to:
Canada, Labrador, Prince Edward I., United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Ericaceae
Genus:
Kalmia
Species:
Kalmia polifolia
USDA Symbol:
KAPO

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub
Height:
60 cm
Light Requirements:
Full Sun,Part Shade,Shade
Drought Tolerance:
Low
Bloom Months:
may,jun,jul
Bloom Colors:
pink, rose
Landscaping Shrub:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:
★★★☆☆ Butterfly & moth species supported by this genus (NWF)
Pollen Specialist Bee Keystone:
★☆☆☆☆ Native pollen specialist bee species supported by this genus (NWF)

Host Plant for Caterpillars

Apharetra dentata, arcadia sallow moth (Xylotype arcadia), lanceolate dagger moth (Acronicta lanceolaria), Idas blue (Lycaeides idas)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies
Deer Resistant:
Yes

Soil Requirements

Soil Type:
peaty, acidic, nutrient-poor soil
pH:
4.0 - 5.5 (strongly acidic)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
Commonly found in bogs and wetlands

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–42 days
Notes:
Seeds require light for germination. Surface sow on moist peat-based medium.

The above propagation data sourced from Claude AI

Pre-treatment: Not given

Establishment: The provided protocol lacks specific information on propagation source, pre-treatment, establishment protocol, temperature, germination rate, and germination time range for Andromeda polifolia.

Source: npn.rngr.net

ORGHPS Germination Guide: Sow @ 20°C. Seed germinates within 3 months Requires light or the seed is very fine. Surface sow and expose to light. * protect from damping off

Source: Ontario Rock Garden & Hardy Plant Society