Plant Wiki

The open plant encyclopedia

Know any plant.
Grow it well.

Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.

  • 13,000+plants with full pages
  • 365,000+plant species worldwide
  • 220+countries covered

Common in

See all

The plants people record most in your country, and ones that grow there wild.

What do you want to do?

Popular plants

Browse all plants

See them in 3D

All plants in 3D

Browse plants

Filter by what you want to do, shape, origin, country, care and safety.

Plant Wiki › Browse plants

Bog laurel

Kalmia polifolia

Also called Swamp Laurel, Bog Kalmia, Northern Bog Laurel, Pale Bog Laurel, Pale Laurel, Box Laurel

Bog laurel
Photo: photo by user Meggar, CC BY-SA 3.0

Bog laurel is a small evergreen shrub of cold, acidic bogs and wet peatlands in northern North America, typically reaching about two feet tall. It thrives in cool, wet, acidic conditions and does not tolerate dry or alkaline soils.

Family
Ericaceae (Heather family)
Grows as
Shrub, Perennial
Light
Full sun, Part shade
Water
Keep the soil consistently moist and never let it dry out.
Soil
Acidic, peaty, moist soil or bog mix
Temperature
Hardy to deep cold, suited to cool climates; avoid hot summers
How easy
Hard
Safety
Toxic: All parts, including leaves, flowers and nectar, contain grayanotoxins that can cause vomiting, weakness and low blood pressure if eaten.
Native range
Subarctic America to NC. & NE. U.S.A.
Climate
temperate

About

Kalmia polifolia, previously known as Kalmia glauca and commonly called bog laurel, swamp laurel, or pale laurel, is a perennial evergreen shrub of cold acidic bogs, in the family Ericaceae. It is native to north-eastern North America, from Newfoundland to Hudson Bay southwards.

Where it grows

Kalmia polifolia is common throughout Northern North America, thriving along the Eastern American states and in Montana, as well as in every Canadian province except in British Columbia, although spottings have been reported of Kalmia polifolia at Rhododenron Lake, located near Vancouver Island. Within Canada, Kalmia polifolia is very commonly found in east Nova Scotia where bog conditions are more frequent. Kalmia polifolia has also been spotted in a bog in Surrey, England.

Other Kalmia plants

Sheep laurel · Mountain laurel

Text excerpted from the Wikipedia article Kalmia polifolia by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Credits & terms

Identify a plant

Point at a leaf or flower and snap. One plant in frame works best.

Your photo
Starting camera…