Spiraea is a large genus of showy, flowering shrubs in the Rosaceae (rose) family, and cold-hardy garden varieties typically handle most cold or wet weather conditions with ease – but there are a few exceptions.
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The many landscape varieties common in cultivation feature dazzling clusters of pink, mauve, or white flowers that bloom in spring or summer, depending on the type.
Many have fantastic, color-changing foliage that emerges in fiery tones then transforms into shades of bronze, gold, and a range of greens over summer, finishing the growing season with a pretty fall display of burgundy, orange, scarlet, and purple.
Robust and tough, most are hardy in USDA Zones 4 to 9, with a few that can survive in colder Zone 3 climates.
Once established, they don’t need a lot of special care to survive frigid temperatures – but a few steps can help ensure their vibrant return in spring.
To keep your shrubs in top shape, join us now for a look at how to care for spirea shrubs in winter.
Here’s what’s coming up:
Deciduous Dormancy
All varieties of spirea are deciduous, which means they prepare for winter by losing their leaves and entering a dormant period.
Healthy, mature shrubs that are rated hardy for your area require little extra protection from the elements.
However, newly planted varieties and container plants can benefit from some protection from cold temperatures, freeze/thaw cycles, or soaking rains.
Protection from freeze/thaw cycles is important because they can cause a few problems like heaving, which can expose the crown to drying winds and freezing temperatures, or cause broken
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