The mature plants you find at a nursery were started in one of these three ways, and are established and ready for transplant into the ground, or a container. The rooted stem portion is then detached from the parent and transplanted. It is then covered with soil and weighed down with a rock. In the layering method, a long, arching stem is bent to the ground, partially severed, and coated with rooting hormone. In the summertime, soft, supple young stems are cut, dipped in rooting hormone, and planted in potting medium.Īlternatively, hard woody stems are cut just before spring, dipped in rooting hormone, and placed in potting medium.
Spirea may be propagated from cuttings or by layering.Ĭuttings are taken in one of two ways. By fall, the leaves take on bronze tones.Īs the last of the leaves drop and winter gets underway, exfoliating bark is the predominant feature, punctuating the barren landscape with a maze of stark, textural lines. Golden leaves follow the flowers, deepening to bright green, for a nice contrast to dark evergreens in the landscape. It puts on a show in spring, its cascading stems laden with petite white blossoms that resemble tiny English roses. The ‘Ogon’ cultivar is an early bloomer with a loose, mounding habit that reaches a height and width of 3 to 5 feet. It is prized as a Plant of Merit in the Midwest. thunbergii is considered invasive in parts of the US, including: Alabama, Mississippi, Louisiana, Maryland, Pennsylvania (Blair County), New York (Fulton County), Connecticut (New Haven). It is known by various names, including baby’s breath, golden bridal wreath, and Thunberg spirea as well as Thunberg’s meadowsweet. The true species and its cultivars are suitable for US Hardiness zones 4 to 8. The Spiraea thunbergii species is native to China and Japan.
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