10 Best Fertilizer For Hydrangeas 2025 in the United States

Miracle-Gro Pour & Feed Plant Food is a convenient, ready-to-use liquid fertilizer that requires no mixing with water, making it very easy to use. It's designed to instantly feed all potted plants, including hydrangeas, whether they are indoors or outdoors. You simply apply it directly to the soil, which simplifies the feeding process significantly.

The product is intended for use every 1-2 weeks, which fits well with regular plant care routines. Being a liquid form, it ensures quick absorption by plants, which can be beneficial for fast-acting nutrition.

This product might appeal more to general plant enthusiasts rather than those specifically looking for a fertilizer tailored to hydrangeas, as it does not specify its N-P-K ratio or detail its content of soil pH adjusters or micronutrients crucial for hydrangeas. Additionally, it is a synthetic fertilizer, which may not appeal to those looking for organic options. If ease of use and quick feeding are your top priorities, this could be a great choice, but if you're looking for a specialized hydrangea fertilizer, you might want to consider other products that provide more specific nutrient information.

Miracle-Gro Shake 'N Feed All Purpose Plant Food offers a convenient solution for feeding a variety of plants, including hydrangeas, both in-ground and in containers. One of its notable strengths is the inclusion of essential micronutrients, which support stronger and more vibrant plant growth.

The fertilizer's formulation, which feeds plants for up to three months, is another beneficial feature, reducing the frequency of applications needed. Additionally, this plant food incorporates natural ingredients that nourish the soil both above and below the surface, promoting healthier root systems and plant health.

Miracle-Gro Shake 'N Feed All Purpose Plant Food is versatile and user-friendly, suitable for gardeners looking for a broad-spectrum fertilizer.

Jobe’s Slow Release Evergreen Fertilizer Spikes are designed primarily for acid-loving trees like cypress, arborvitae, pine, and cedar, but can also be applied to plants that thrive in similar conditions. Each package contains 15 spikes, simplifying application and ensuring a steady supply of nutrients directly to the plant roots. The spikes have a 13-3-4 NPK ratio, which is beneficial for root development and plant growth but may not be perfectly balanced for hydrangeas specifically, which often benefit from a higher phosphate content for better blooming.

These spikes are slow-release, reducing the risk of over-fertilization and unnecessary waste, and application needs to be done just twice a year – early spring and late fall – making them very user-friendly. The pre-measured spikes help avoid messes and smells typically associated with fertilizer application. However, these spikes do not adjust soil pH, which is critical for hydrangeas, as they prefer slightly acidic soil.

Additionally, while the product is synthetic rather than organic, which might not appeal to gardeners looking for a natural option. This product is best suited for gardeners looking for a low-maintenance fertilizing option for acid-loving trees and shrubs but may not be the ideal choice for those focusing specifically on hydrangeas due to its NPK ratio and lack of pH adjustment.