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.
Christmas Cactus - leaves get limp and fall off. I have trouble with my Christmas Cacti every winter. I keep the plants outside all summer where they flourish. After bringing them in, they usually do well for a month or so, then I see leaves get limp and sometimes they appear to dry up and fall off. I water lightly ever couple weeks. My house is very dry - I have a woodstove. I do not see any pests.