SPIRAEA x vanhouttei
Description
A compact, bushy, deciduous shrub with thin, curved sprigs. The darkgreen leaves, from rhomboid to ovate, are from 4 to 5 cm in length, crenated and slightly dentate with a greenish-blue colour on the undersides. At the beginning of summer it produces white flowers gathered in dense corymbs measuring about 5 cm in diameter.
-15°C / -45°C USDA 1-6