Spiraea are deciduous shrubs with simple leaves and short racemes, panicles or corymbs of small, 5-petalled white or pink flowers which appear in Spring or Summer depending on the variety.
The plant is best positioned in full sun though can also do well in light shade. Spiraea are happy in loamy, sandy or chalky soil in a situation. The preference is for moist soils, though they can survive in all but extreme conditions.
Plants will grow to a maximum of one and a half metres, but may need to be cut back hard to rejuvenate them after a few years. This is dependant on the variety however.
Some variants have a habit of suckering, but division of plants can be made by splitting in Autumn or Spring, though soft wood cuttings can be made in Summer.