Mountain Laurel
Kalmia latifolia
Family Ericaceae
Look closely at mountain laurel's flowers and you find engineering: crimped pink-and-white cups with spring-loaded stamens that fling pollen onto arriving bees. Massed on a glossy native evergreen at the woodland edge, they make one of the finest late-spring displays in eastern North America.
It keeps its polish year-round in the high, dappled shade rhododendrons favor, and deer rarely bother it. Be clear-eyed: every part is seriously toxic, so this is a shrub admired, never eaten, and sited away from browsing pets. For a woodland garden with standards, few natives carry themselves better.
Part Shade / morning sun — like its cousin rhododendron
Moderate water
Slow growth
Deer-resistant
Native to North America
Attracts bees
Juglone-sensitive
From the print shop
Growing mountain laurel? Hang it.
Our Plant Library collection carries mountain laurel — Kalmia latifolia, print Nº 314, “Mountain Laurel.”
526 designsfrom $12.99white or black backgroundmatte poster, unframed
Will it thrive where you are?
Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what mountain laurel actually needs.
Hardy inZones 4-9Mountain Laurel · Common problems
Common mountain laurel problems
Mountain Laurel · Growing & propagation
Growing mountain laurel
- Light
- Part Shade / morning sun
Like its cousin rhododendron
- Water
- Moderate, even
Mulched shallow roots
Soil- ACID, humusy, PERFECT drainage · pH 4.5 - 6.0
Fertilizer- Acid feed lightly after bloom
Pruning- After flowering, minimally
Deadhead spent trusses if reachable; it's slow and naturally shapely. Site right and leave it alone.
Spacing- 4-6 ft
How to plant & propagate mountain laurel
- Propagate
- Seed (stratify), cuttings, or layering
Mountain Laurel · Seasonal care & spray guidance
The mountain laurel growing playbook
When to spray mountain laurel
Growing season. Right siting (high shade, acid, drained) prevents most problems.
Mountain Laurel · Calculators & field guides
A little help in the garden.
Mountain Laurel · Yearly calendar
The mountain laurel year, month by month
Jan
No calendar activity is listed for this month.
BloomBloomMay to June
What each band means
- Bloom — flowers open — pollinators working, frost on blossoms is the danger.
These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.
Mountain Laurel · Ecology & uses
Ecology & uses
Kalmia latifolia
Mountain Laurel in the garden system
- Shrub layer shrub
Attracts- Bees
- Habitat
- Woodland
- Moisture
- Facultative / average
- Deer
- Resistant
A safer unfenced choice
- Origin
- Native to North America
- Juglone
- Mountain Laurel is sensitive to juglone
The toxin exuded by black walnut, butternut, and their relatives. Keep it 50+ ft from any walnut or hickory, or its leaves will yellow, wilt, and die back for no obvious reason.
What mountain laurel is grown for
⚠ Toxic if eatenHIGHLY toxic to pets/livestock and people (grayanotoxins — 'mad honey')
Use- Native evergreen
- Use
- Woodland edges
- Use
- Spring bloom
Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.
Mountain Laurel · Varieties & cultivars
Choosing a mountain laurel variety
'Olympic Fire', 'Minuet' (compact), 'Sarah', 'Elf' (dwarf) — banded and bicolor selections
Sources & plant identity
Know what you’re growing.
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Mountain Laurel
Kalmia latifolia
The plant, at a glance.
- Botanical name
- Kalmia latifolia
- Plant family
- Ericaceae
- Growth habit
- Shrub · Perennial
- Origin
- Native to North America
- USDA plant symbol
- KALA
- Invasive risk
- Low
Hardiness, size and timing vary with your cultivar, soil and climate.
Rooted in research.
University extension research, brought together with hands-on growing experience at Story Thyme Farms.
Questions
Mountain Laurel questions, answered straight.
Do deer eat mountain laurel?
Rarely — mountain laurel is considered deer-resistant, which makes it one of the safer unfenced choices in deer country. Hungry deer in a hard winter test every rule, but it's a low-risk pick.
Is mountain laurel safe for kids and pets?
No — treat it as toxic if eaten. HIGHLY toxic to pets/livestock and people (grayanotoxins — 'mad honey') Site it accordingly if children or pets roam the garden. This is general reference, not medical or veterinary advice — call a vet or poison control if something has actually been eaten.
How do you propagate mountain laurel?
Seed (stratify), cuttings, or layering.
Elsewhere
Where mountain laurel sits in the library.
Rose
Hydrangea
Common Lilac
Forsythia