Plant Taxonomy of Gold Mound Spirea: The taxonomy of Gold Mound spirea is Spiraea japonica 'Gold Mound.' The latter is the cultivar name, which is a propos on two levels: the color of the leaves and the shape or habit of the bush (see below).Plant Type: Gold Mound spirea is a deciduous flowering shrub. The genus is part of the rose family.he taxonomy of Gold Mound spirea is Spiraea japonica 'Gold Mound.' The latter is the cultivar name, which is a propos on two levels: the color of the leaves and the shape or habit of the bush (see below). Plant Type:
Holly Leaf Spot Symptoms. The symptoms of this holly disease are easy to see. Most types of holly plants will first show black, yellow or brownish spots on the leaves. Eventually, the leaves will start to fall off the bush. Typically, the holly leaves will start to fall off the bottom of the plant and work its way up the plant. Leaves will normally fall off the plant in the spring, but the spots will first appear in the late fall or winter.
Black Fungus on Holly Bushes Sooty mold infection, which produces black, soot-like spots on your plantsâ foliage, comes from honeydew â and not the good kind of honeydew. This type of âhoneydewâ refers to a sticky syrup excreted by the terminal opening in a bugâs gut when it eats too much of your plantsâ sap. Basically, it eats until it pops.