Miracle-Gro Miracid Plant Food is applied to actively growing plants. They do not have to be blooming, just actively growing to apply the Miracid. You will apply every 7-14 days during the growing season.
The manufacturer states that Miracle-Gro Miracid Plant Food would actually raise the PH. Since your PH is so high they do not recommend using the Miracid.
Miracle-Gro Miracid Plant Food is not labeled for application to edibles. You may want to consider using something like Miracle-Gro Liquid All Purpose Plant Food Concentrate instead.
We apologize but we are not the manufacturer of the product, or specialist in silver buttonwood shrubs. In general most fertilizers should be safe to use, but the manufacturer can likely point you in a more specific direction to make sure the Miracle Gro Miracid Plant food will be adequate for your needs. You can reach Scotts, at 1-888-270-3714.
Miracle-Gro Miracid Plant Food is labeled for use with Acid Loving Plants such as Rhododendrons, Azaleas and Hydrangeas. You would need to research the best growing conditions for the specific plants that you have in order to know what kind of fertilizer will work best for them.
Miracle-Gro Miracid Plant Food is designed for acid-loving shrubs such as azaleas and hydrangeas. We recommend a pH test or full Soil Kit test if you have not done one in several years. If you do need to lower the pH, then you can use a sulfur product such as Hi-Yield Soil Sulfur for this application.
Miracle-Gro Miracid Plant Food is ideal for acid loving plants including Rhododendrons, Azaleas, and Hydrangeas. You could consider using Ferti-lome Hibiscus and Tropical Plant Food 17-7-10 which provides the unique needs of Hibiscus and other tropical plants with its 17-7-10 N-P-K formulation, and is formulated to increase the development of the blooms, particularly with its size, color, and quantity.
Miracle-Gro Miracid Plant Food is only labeled for application to flowering plants such as azaleas, camellias, and gardenias, so we cannot say whether this would work. We suggest contacting the manufacturer directly at 888-270-3714 to see if they would recommend it for this use.
Only time will tell if there is injury from applying Miracle-Gro Miracid Plant Food too soon. What happens more is the nutrients are not in the soil still when the plants are actively growing and needing them so you may need to reapply following the instructions on the label.
Wintergreen (Gaultheria Procumbens) seldom need fertilization, but should be in well drained soil, rich in organic matter, which a PH of 5.5-6.5. If needed to lower the PH levels in the surrounding soil, you could consider using Miracle-Gro Miracid Plant Food as directed on the label to increase the acidity levels.
You could also contact the master gardener at your local extension office for more specific information on caring for Wintergreen plants.
As long as the plants, flowers, etc are actively growing, Miracle-Gro Miracid Plant Food should be applied every 7-14 days.