10 Best Garden Fertilizers 2025 in the UK

Miracle-Gro All Purpose Water Soluble Plant Food is a popular choice among gardeners for its ability to significantly enhance plant growth. This synthetic fertilizer is renowned for doubling the size of plants compared to those not fed with it, making it ideal for gardeners aiming for lush and vibrant plants. The blend includes essential micronutrients such as boron, copper, iron, manganese, molybdenum, and zinc, which play a crucial role in boosting plant health and development.

This fertilizer is easy to use—simply dissolve the required amount in water and apply with a watering can or through a Miracle-Gro hose-end feeder. This water-soluble form ensures nutrients are delivered efficiently and effectively. It's recommended to apply every two weeks, from March to September, for the best results.

Some potential drawbacks include its synthetic nature, which may not appeal to those seeking organic gardening solutions. The repeated application could be seen as a disadvantage for those looking for a low-maintenance option. Additionally, while Miracle-Gro’s effectiveness is well-documented, overuse could lead to nutrient runoff, affecting the environment.

Miracle-Gro All Purpose Water Soluble Plant Food is a top-tier option for those who prioritize rapid and noticeable plant growth and are comfortable with a synthetic fertilizer. It suits gardeners who are eager for impressive displays and are willing to adhere to a regular feeding schedule.

The Westland Fish, Blood and Bone All Purpose Plant Food is a versatile garden fertilizer that offers several benefits for gardeners. One of its key strengths is its ability to prolong flowering and fruiting, which is ideal for those looking to enhance both ornamental and edible plants in their gardens. Additionally, it promises greater crop yield and improved fruit color and flavor, making it suitable for vegetable and fruit gardeners aiming for high-quality produce.

This fertilizer is presented in a liquid form, which can be beneficial for even distribution across a garden space, although the mixing ratio requirement of 70-110g per square meter may require careful measuring to avoid over-application. The large 10 kg package provides good value, particularly for sizable gardens, but it could be cumbersome for those with limited storage space.

With a high customer review rating of 4.6 out of 5 from over 2,000 ratings, it is a well-received product in the multi-purpose fertilizer category, ranking highly in best sellers. This suggests that many users have found it effective for a variety of gardening needs. It is best suited for gardeners who need a reliable all-purpose fertilizer and are less concerned with the specific nutrient breakdown or organic certification.