How to trim embroidery thread?
Spiraea does not need to be pruned frequently during the management period, and it is usually pruned once a year. The time is chosen in early spring. Cutting off some dry, overgrown, weak and aging branches can save a lot of nutrient consumption, thus promoting the plant shape to be more beautiful and leafy. In addition, if pests and diseases are found in the growing period, the withered branches and leaves should be cut off to preserve nutrition and avoid further infection.