description Spirea Overview
Spirea is a genus of around 80 flowering shrubs in the rose family (Rosaceae), native to the Northern Hemisphere and widely cultivated since the 17th century for dense clusters of small white or pink flowers.
help Spirea FAQ
What is spirea?
Spirea is a genus of roughly 80 flowering shrubs in the rose family, Rosaceae. The plants are grown for dense clusters of small white or pink flowers and have been cultivated since at least the 17th century.
When do spirea shrubs bloom?
Bloom time depends on the species and cultivar. Some types flower on older wood in spring, while others bloom on new growth in summer, so pruning time should match the plant’s flowering habit.
How large does spirea get?
Spirea size varies widely among species and garden cultivars, from compact mounding plants to larger shrubs. The final height should be checked for the named cultivar rather than assumed from the genus alone.
Where should spirea be planted?
Most spireas prefer a sunny site with reasonably well-drained soil. Regular pruning can help maintain shape, but removing branches at the wrong season may reduce the next display of flowers.
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