Balanced Fertilizer: A balanced, slow-release granular fertilizer with an N-P-K ratio (nitrogen-phosphorus-potassium) of 10-10-10 or 14-14-14 is a suitable choice. This provides a well-rounded supply of essential nutrients for healthy growth and blooming.

Acidifying Fertilizer: If you’re aiming for blue hydrangea blooms in acidic soil, choose a specialized acidifying fertilizer that contains sulfur or aluminum sulfate. This helps lower soil pH, intensifying the blue coloration.

Organic Fertilizers: Organic options like compost, well-rotted manure, or fish emulsion are excellent choices for hydrangea fertilization. They enrich the soil with organic matter and provide a slow-release source of nutrients.

How to Fertilize Hydrangeas

Now that you know when and what to fertilize with, let’s discuss how to properly fertilize your hydrangeas:

Measure the Area: Calculate the square footage of the area where your hydrangeas are planted. This will help determine the amount of fertilizer needed.

Follow Instructions: Read the instructions on your chosen fertilizer carefully and follow the recommended application rates. Over-fertilizing can harm your plants, so it’s crucial to apply the correct amount.

Apply Evenly: Sprinkle the fertilizer evenly around the base of the hydrangea plants, avoiding direct contact with the stems. Gently work it into the soil using a rake or hand tool.

Water Thoroughly: After fertilizing, water the area thoroughly to help the nutrients penetrate the soil and reach the root zone.

Mulch Application: Applying a layer of mulch around your hydrangeas can help retain moisture, regulate soil temperature, and reduce weed competition. This further supports healthy growth and flowering.

Conclusion

Fertilizing hydrangeas for bigger blooms is a simple yet essential aspect of their care. By understanding their specific needs, choosing the right fertilizer, and applying it at the appropriate times, you can enjoy the spectacular beauty of your hydrangea plants as they flourish with larger and more vibrant blossoms. So, roll up your sleeves, grab your gardening tools, and let your hydrangeas thrive in all their glory!