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Spiraea plants are hardy, deciduous-leaved shrubs. The leaves are simple and usually short stalked, and are arranged in a spiralling, alternate fashion. In most species, the leaves are lanceolate (narrowly oval) and about 2.5 to 10 centimetres (0.98 to 3.94 in) long.
These plants benefit from deadheading, according to the PennState Extension and Colorado State University Extension: Basil (remove any flower to encourage leaf growth) Bee balm. Bellflower.
Deadheading flowers with many petals, such as roses, peonies, and camellias prevents them from littering. Deadheading can be done with finger and thumb or with pruning shears, knife, or scissors. [2] Ornamental plants that do not require deadheading are those that do not produce a lot of seed or tend to deadhead themselves.
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Spiraea japonica is a deciduous, perennial shrub native to Japan, China, and Korea. Southwest China is the center for biodiversity of the species. [ 4 ] It is naturalized throughout much of the Northeast, Southeast, and Midwest areas of the United States, and parts of Canada.
Spiraea tomentosa grows to up to four feet high and prefers moist to wet soil and full sun. It blooms in summer. It blooms in summer. Each tiny, pink flower is about 1/16 of an inch wide and arranged in narrow, pyramid-shaped flowerheads that grow up to eight inches long.
Spiraea prunifolia, commonly called bridalwreath spirea, [1] is a species of the genus Spiraea, sometimes also spelled Spirea. It flowers mid-spring, around May 5, and is native to Japan, Korea, and China. It is sometimes cultivated as a garden plant elsewhere.
Spiraea alba, commonly known as meadowsweet, [2] white meadowsweet, [3] narrowleaf meadowsweet, [4] pale bridewort, [5] or pipestem, [6] is native to the wet soils of the Allegheny Mountains and other portions of eastern North America, [7] but is currently endangered in the state of Missouri. It is naturalized in other parts of the world.