Bog laurel (Kalmia polifolia)

Bog laurel

Also known as: Western bog laurel, Box laurel, Swamp laurel

Bog laurel (Kalmia polifolia) is native to northeastern North America. It is pollinated by bees, but when the bees have pollinated this plant, the honey they produce is poisonous. The plant is highly toxic to humans and animals. Caribou, however, can eat most plants, including this one.

Scientific classification

Species

Bog laurel (Kalmia polifolia)

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Toxic to Pets

Toxicity

Perennial

Lifespan

Herb

Plant Type

Spring, Early summer

Bloom Time

15 cm to 76 cm

Plant Height

Pink, Purple

Flower Color

Green

Stem Color

Evergreen

Leaf type

0 - 35 ℃

Ideal Temperature

Slow

Growth Rate

Images of Bog laurel

Attributes of Bog laurel

Growth Rate

Despite the bog laurel's modest growth rate, its vigor is evident in spring and summer when bog laurel commences a slow, steady pattern of development. Notably, it manifests in a compact, bushy form with glossy evergreen foliage, reflective of its slow growth. This timing aligns with its preference for cooler temperatures, avoiding energy-intensive growth in harsh climates.

Distribution of Bog laurel

Distribution Map

Bog laurel is native to the northern parts of the North American continent, thriving in its cool, boggy habitats. While it remains predominantly within its indigenous range, bog laurel has also been introduced and cultivated in regions corresponding to northern Europe. The plant's adaptability allows for its survival and growth in these introduced areas, though it retains a strong presence in its original locales.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Cold bogs, cold, wet, mt

Hemisphere Trend Curve

Northern

Sorthern

Culture

Symbolism

Ambition, Success, Renown

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Toxicity

Bog laurel is highly toxic to cats and dogs. Consumption can cause symptoms from vomiting to coma or death due to grayanotoxin. Immediate veterinary attention is required.

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Quickly Identify Bog laurel

Distinct pink bell-shaped flowers

Dense mat-forming low growth

Woody capsules less than 1 inch

Tolerance to shaded and flooded environments

Vegetative reproduction via stem cuttings

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Care Guide for Bog laurel

Every week

Water

Partial sun

Sunlight

0 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Bog laurel thrives in moist environments, requiring weekly watering to maintain hydration. Preferring high humidity, it is typically grown outdoors, benefiting from rainfall to support its lush foliage year-round, while being moderately intolerant to drought.

Fertilize: Bog laurel thrives with balanced fertilizer in spring for growth and blooms. Use high-phosphorus for better flowering. Fertilize every 2-3 months during growth, ensuring moist soil to prevent root burn. Reduce application in fall and winter, and monitor plant health to adjust care.

Pruning: Bog laurel has evergreen leaves and vibrant pink flowers. Prune in early spring to late winter, removing dead branches and shaping lightly for bushier growth. Moderate trimming encourages blooms and improves air circulation, reducing fungal disease risk, ensuring bog laurel remains healthy and attractive.

Propagation: Bog laurel is a hardy evergreen shrub that prefers wet, acidic soils. Propagation through softwood cuttings in late spring or early summer is recommended. Use rooting hormone and maintain high humidity for best results. Once established, bog laurel thrives with minimal maintenance in partial shade.

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