Species Western Mountain Heather
white flowers with brown sepals and green foliage

Western Mountain Heather

Cassiope mertensiana subsp. mertensiana

The Western Mountain Heather, also known as Cassiope mertensiana subsp. mertensiana is a low-growing evergreen shrub that is native to the coastal mountains of the Pacific Northwest. It has soft, leathery dark-green foliage and bears clusters of pink, bell-shaped flowers in the spring. It prefers moist, well-drained soils and cooler climates and will grow in full sun to part shade. This species is an excellent choice for rock gardens, landscape borders, and mass plantings. It can also be used for erosion control and as a component in low-maintenance gardens.

Watering:

Minimal

Propagation:

Cutting,Layering Propagation,Division,Seed Propagation

Hardiness Zone:

Flowers:

Flowers

Sun:

full sun,part shade

Fruits:

brown Fruits Ready In Fall

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Drought Tolerant:

Yes

Care Level:

Medium

watering

Western mountain heather should be watered moderately when the soil is dry but not bone dry, about once a week. Water should be given to the plant in the morning so that the leaves dry during the day, avoiding any water spots. Try to keep the same consistency of watering; too much water could be as harmful as too little. Water thoroughly but avoid excess at the roots. If the leaves start to yellow, then the plant likely needs more water.

sunlight

Western Mountain Heather enjoys full sunlight for optimal growth. It does best when grown in an area that receives a minimum of 6 to 8 hours of sunlight a day, though it can tolerate a slightly lower intensity of light when necessary. In addition, it prefers afternoon shade in warmer climates as this will prevent the leaves from becoming scorched due to hot temperatures. In areas where Western Mountain Heather is able to receive full sun for part of the day, it is best to keep the plant in a location that receives the most light during the morning and some shade during the afternoon.

pruning

The Western Mountain Heather should be pruned in late winter or early spring. Pruning should remove the oldest, toughest stems and help keep the shrub from becoming too leggy. Depending on the size of the shrub, pruning can be as simple as removing the weakest, oldest stems at the base of the plant, or a more extensive process. When pruning, you should aim to remove up to 1 third of the shrub’s older wood. Western Mountain Heather can also be very successfully pruned into a tree shape or topiary form. Always use sharp, clean pruning shears and cut just above a node (where the stem attaches to a branch) to ensure it is kept looking tidy. Removing any dead, diseased, or broken stems is beneficial to the health of the plant.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Western Mountain Heather typically starts flowering in July.

Harvest Fruit

The harvesting season for Cassiope mertensiana subsp. mertensiana typically begins in July and ends in August.