Selecting the right fertilizer is crucial for promoting healthy growth and abundant blooms. A balanced, slow-release fertilizer with an N-P-K ratio of 10-10-10 or 12-4-8 is generally recommended for hydrangeas.
For those looking to enhance bloom color, specific fertilizers that adjust soil pH can be used. For instance, aluminum sulfate can be added to encourage blue blooms, while superphosphate can help maintain pink hues.
5. How to Apply Fertilizer Correctly
Proper application of fertilizer is key to avoiding damage and ensuring even distribution of nutrients. Begin by spreading the fertilizer evenly around the base of the plant, keeping it away from the stems to prevent burning.
Water the fertilizer in thoroughly to help it penetrate the soil and reach the roots. Be sure to follow the manufacturer’s instructions regarding the amount to use, as over-fertilizing can lead to excessive foliage growth at the expense of blooms.
6. Popular Fertilization Hacks: What Works and What Doesn’t