Bulbs
Flower Basics
Flower Beds & Specialty Gardens
Flower Garden
Garden Furniture
Garden Gnomes
Garden Seeds
Garden Sheds
Garden Statues
Garden Tools & Supplies
Gardening Basics
Green & Organic
Groundcovers & Vines
Growing Annuals
Growing Basil
Growing Beans
Growing Berries
Growing Blueberries
Growing Cactus
Growing Corn
Growing Cotton
Growing Edibles
Growing Flowers
Growing Garlic
Growing Grapes
Growing Grass
Growing Herbs
Growing Jasmine
Growing Mint
Growing Mushrooms
Orchids
Growing Peanuts
Growing Perennials
Growing Plants
Growing Rosemary
Growing Roses
Growing Strawberries
Growing Sunflowers
Growing Thyme
Growing Tomatoes
Growing Tulips
Growing Vegetables
Herb Basics
Herb Garden
Indoor Growing
Landscaping Basics
Landscaping Patios
Landscaping Plants
Landscaping Shrubs
Landscaping Trees
Landscaping Walks & Pathways
Lawn Basics
Lawn Maintenance
Lawn Mowers
Lawn Ornaments
Lawn Planting
Lawn Tools
Outdoor Growing
Overall Landscape Planning
Pests, Weeds & Problems
Plant Basics
Rock Garden
Rose Garden
Shrubs
Soil
Specialty Gardens
Trees
Vegetable Garden
Yard Maintenance
Does Spirea Grow in Shade?
Does Spirea Grow in Shade?. Spireas (Spiraea spp.) are prized for their sometimes colorful foliage and always prolific blooming, but their flowers come at a price: Spirea shrubs need a lot of sunlight. Although more than 80 spirea species and numerous cultivars exist, they all require full sunlight for their optimum growth. In general, spirea...
Spireas (Spiraea spp.) are prized for their sometimes colorful foliage and always prolific blooming, but their flowers come at a price: Spirea shrubs need a lot of sunlight. Although more than 80 spirea species and numerous cultivars exist, they all require full sunlight for their optimum growth. In general, spirea shrubs are hardy in U.S. Department of Agriculture (USDA) plant hardiness zones 4 through 8, although the USDA zones may vary by species and cultivar.
Light Requirement
The term "full sunlight" is defined as six or more hours of direct sunlight per day. In the case of drought-tolerant spirea shrubs, however, a general rule to follow is: The more sunlight, the better. A spirea may grow in shade, but it will not grow well; it will develop a loose, leggy shape, and its blooming will be greatly reduced.
Other Cultural Requirements
Although full sunlight is important for spireas, so are other environmental factors. The shrubs grow best in rich, moist soil, according to a Fine Gardening website article. They tolerate poorer soil conditions, however. Spireas grow very quickly and need to be pruned, which they tolerate very well. Like many other flowering shrubs, some Spirea species bloom on the previous season's new wood. Those species should be cut back soon after their flowers fade. Shrubs that bloom on the current year's new wood should be pruned as their buds begin to develop in spring.
Appearance
Spireas range greatly in size, but they all can be distinguished from other kinds of shrubs by their fine, small leaves and slender branches. Spireas grow in one of two forms: an upright shrub with gracefully arching branches tipped with white flowers or a low-growing, spreading shrub. The species and cultivars that grow in the former form feature white flowers and often are called "bridal wreath" spireas. Low-growing, spreading spireas have pink, red or white flowers.
Selected Species
Varieties of spireas with yellow leaves are the best performers in shady conditions, according to the Bachman's website. They include Japanese spirea (Spiraea japonica "Goldflame"), which features pink flowers and golden foliage that deepens in fall. This colorful spirea is hardy in USDA zones 4 through 8.
