Spiraea thunbergii, called Thunberg spirea, baby's breath spirea or breath of spring spirea, is a dense, twiggy, upright, deciduous shrub with wiry, outward-arching branching. It typically grows 3-5' tall and as wide, often becoming somewhat open and leggy over time.
Spiraea Thunbergii Care
Spiraea Thunbergii
What is the plant
humidity
Normal
lighting
Full Sun
temperature
-30°C - -20°C
hardiness zone
4 - 8
difficulty
Medium
How to Care for the Plant
Water
Water until it all soaks in and then repeat. Gently tamp down a second time.
Pruning
If overgrown, can be renovated by cutting back hard immediately after flowering
Fertilizer
Young plants need extra phosphorus to encourage good root development. Look for a fertilizer that has phosphorus, P, in it(the second number on the bag.) Apply recommended amount for plant per label directions in the soil at time of planting or at least during the first growing season.
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Sunlight
A full sun lover, this plant is easily grown in average
Soil
Soil Type Chalk, Loam, Sand Soil pH Acid, Alkaline, Neutral Soil Drainage Moist but Well-Drained, Well-Drained
Temperature
Spiraea thunbergii is tolerant of temperatures down to about -20°c
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Additional
Noted for its spectacular spring blossoms, Spiraea thunbergii (Thunberg Spirea) is a dense, twiggy, upright, deciduous shrub with gracefully outward-arching branches. In mid to late spring, abundant clusters of tiny white flowers line the slender, naked branches producing an incredible pretty display.
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