Are Spiraea and Snow Willow the Same Plant? A Detailed Explanation of the Differences Between the Two

Spiraea and snow willow are two plants with their own distinctive features. Look closely and you will see that the two differ clearly in many ways. The following points will help you tell them apart with ease.

In terms of plant classification, snow willow (Fontanesia fortunei) belongs to the genus Fontanesia in the olive family (Oleaceae), and plants in this family and genus often have the distinctive characteristics of Oleaceae. Spiraea is different: it belongs to the genus Spiraea in the rose family (Rosaceae), and most flowers in Rosaceae are especially beautiful, as is spiraea. Just from the family and genus alone, you can see how they differ.

In terms of morphological features, the differences between spiraea and snow willow are even more obvious. Snow willow leaves are slender and long, lanceolate or ovate-lanceolate, with serrated edges. Spiraea leaves are ovate or elliptical, a little more rounded than snow willow leaves, and also have serrated edges, though the serrations are finer and denser.

They are different when they bloom, too. Snow willow produces small white flowers, and many of these little flowers cluster together to form a cyme. Spiraea flowers can be white or pink, and the flowers form umbels or corymbs, looking like clusters; their flowering period is longer than that of snow willow, lasting from spring all the way into summer.

After the flowers fade and fruit forms, snow willow bears flat samaras, a unique shape that helps it spread its seeds with the wind. Spiraea produces small follicles, which split open on their own when ripe to release the seeds.

In terms of growing environment, spiraea and snow willow are not quite the same either. Snow willow is especially tough, tolerating both cold and drought, and it is often seen on hillsides and by rivers in temperate regions; no matter how harsh the environment, it manages to grow tenaciously. Spiraea prefers full sun; although it is also cold-tolerant, it is better suited to temperate and subtropical regions, and as long as it gets plenty of sun it will grow very lushly.

Finally, their uses. Snow willow is often planted along roadsides as a hedge, row upon row, neat and attractive, and it can also screen off different areas. Because of its handsome shape, some people also train it into bonsai, which looks very stylish at home. Spiraea is mainly grown for ornament; it is often seen in park flowerbeds, in a riot of colors and especially eye-catching. It can also be cut and placed in a vase to add a touch of nature to the home.

In short, snow willow and spiraea differ significantly in family and genus, morphology, growing environment and uses, and once you have grasped these key points, you can tell them apart with ease.