Mountain Laurel

(Kalmia latifolia)

Contact: Diane Relf, Extension Specialist, Environmental Horticulture

August 1996

Summary:

Foliage: Evergreen broadleaf
Height: 3 to 15 feet
Spread: 3 to 15 feet
Shape: Bushy

Foliage is thick and leathery with a glossy, dark green color at maturity. Large flowers bloom in summer and vary in color from pink to rose to red.

Plant Needs:

Zone: 4 to 9
Light: Partial shade to full sun
Moisture: Wet or moist
Soil Type: Sandy, loam, or clay
pH Range: 3.5 to 5.5

Functions:

Suggested uses for this plant include border, massing, naturalizing, foundation, screen, and specimen plant.

Planting Notes:

Easy to transplant because of its fibrous root system.
Place in a moist, cool location with acid soil.
When using as a foundation plant, do not plant under a window, unless using a dwarf variety.

Care:

Mulch to keep soil moist around the plant.
Remove flower heads after fading occurs.

Problems:

Susceptible to a number of insect pests, such as borers, scale insects, lacebug, and whitefly.
Cercospora leaf spot will be found on almost all Mountain Laurel.

Alternatives:

Consult local sources, including historic or public gardens and arboreta, regarding cultivars and related species that grow well in your area.

Cultivars of KALMIA LATIFOLIA:
`Alba' has white flowers.
`Myrtifolia' and `Obtusifolia' are compact plants that are less than 6 feet tall.

Related species:
KALMIA RUBRA has deep, pink flowers.

Comments:

One of the prettiest shrubs available for both sun and shade locations. Native to portions of Virginia.
Ideal for shady, naturalized settings.

Additional Materials:

The PRUNING SERIES videotape can be ordered through your local Extension office.
The following Extension publications are available through your local Extension office or directly from: Virginia Tech Extension Distribution Center 112 Landsdowne St. Blacksburg, VA 24061
#426-500 "Winter Injury to Trees and Shrubs"
#426-607 "Selecting Landscape Plants - Broad-leaved Evergreens"

This material was developed by Carol Ness as part of the Interactive Design and Development Project funded by the Kellogg Foundation. Mary Miller, Project Director. Diane Relf, Content Specialist, Horticulture. Copyright 1989 by VCE.

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