Cold hardiness

Heat tolerance

Where this plant fits

Suitable across 41 ecoregions — 40 climate-resilient through 2070 · 1 suited today. Best matches first.

What it needs

Lifecycle

Pollination

NC State documents an unusual spring-loaded pollination mechanism: "10 anthers on recurved filaments held under tension in the corolla. When triggered by visiting pollinators, the filaments spring toward the center, striking the pollinators with pollen." Bumblebees + other large native bees are the primary effective pollinators; honeybees also visit but the species's mechanism evolved for native bumblebee-sized visitors.

Plants don't grow alone

For people

NC State explicitly flags mountain laurel as HIGH-SEVERITY poisonous. ALL plant parts (bark, flowers, fruits, leaves, roots, seeds, stems) contain grayanotoxins (also called andromedotoxins) that cause severe gastrointestinal + cardiovascular symptoms in humans, dogs, cats, horses, and livestock. CRITICAL: honeybees that forage heavily on Kalmia produce "mad honey" — a regional phenomenon in parts of the southeast US + Mediterranean Turkey where Ericaceae-dominated landscapes lead to grayanotoxin-contaminated commercial honey. Do not consume any plant part. Wash hands after pruning.

Native range

Climate notes

In the designer

Seasonal interest

University extension service

Photo · CC BY-SA 4.0