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Besides, what plants can I use Holly tone on?
Holly-tone ® is a fertilizer designed to feed plants that prefer to live in acidic soils. Some examples of acid-loving plants are: azalea, dogwood, rhododendron, ferns, hemlock, holly, hydrangea, juniper, arborvitae, magnolia, Japanese Andromeda (pieris), pachysandra, vinca and many other evergreens.
Similarly one may ask, what is Holly Tone good for?
Holly-tone is an organic & natural fertilizer that's not just for Hollies. It can be used for any acid-loving plants, such as blueberries, camellias, rhododendrons, evergreens, hydrangeas and more. When you apply the fertilizer in late fall, only use half of the recommended dosage.
Feeding them with Holly-tone in spring creates bigger blooms — and more of them. Feeding them again in the fall will ensure year-round health and beauty of your Acid-Loving plants. Fertilize evergreens, like spruces, firs, hemlock and pines, to encourage a deep, healthy green color.