Best Spray Flower Fertilisers of 2025
* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Spray flower fertilisers are a range of products designed to provide essential nutrients to flowers and plants through a simple and convenient spraying process. These fertilisers come in a variety of formulas, each tailored to meet the specific needs of different types of flowers and plants. They are easy to use and can be applied directly to the foliage and flowers of plants, promoting healthy growth and vibrant colours. These products are an excellent option for gardeners looking to improve the health and appearance of their flowers and plants without the hassle of traditional fertilising methods.
At a Glance: Our Top Picks
#TOP 1
9.9
#TOP 2
9.8
#TOP 3
9.6
Top 6 Spray Flower Fertilisers
Plantsmith Houseplant Care Mist with Growth Aid
The Plantsmith Care Mist is a premium plant spray designed to enhance the health of your indoor plants. With 17 essential ingredients, including lavender and avocado oils, it promotes growth while naturally repelling pests. This mist is suitable for all types of leafy houseplants and succulents, thanks to the rich kelp extract and Humic Acid that stimulate growth. Using it is simple; just shake the bottle and mist the leaves, providing your plants with the nourishment they need for vibrant, long-lasting leaves and flowers.
AMK® Miracle Gro Nourish & Protect Spray
The AMK® Miracle Gro Spray offers a dual benefit for your roses, shrubs, and ornamental plants. It combines the nourishing effects of plant food with the protective properties of natural caster oil, helping to keep your garden healthy. By simply spraying the leaves every two weeks, you can create a transparent layer that feeds and protects your plants from pests and diseases. This product is also safe for children, pets, and wildlife, making it an eco-friendly choice for any gardener.
GroGreen® Rose Feed & Shine Spray 750ml
The GroGreen® Rose Feed is a convenient ready-to-use spray that promotes healthy and strong roses. By using it weekly, you can effectively protect your plants from various common rose diseases. This liquid fertiliser is specially formulated with micronutrients and natural plant oils, providing essential nourishment for all types of roses. It's environmentally friendly, ensuring that you can care for your garden without harming the planet. You will appreciate how easy it is to keep your roses vibrant and flourishing with this product.
Greenacres Sulphur Rose Spray with Refill
The Greenacres Sulphur Rose is an effective solution for keeping your roses free from common fungal diseases like blackspot and mildew. By using this natural plant tonic, you can ensure blemish-free roses without harming the environment. It is safe for children, pets, and wildlife, allowing you to garden worry-free. You can apply it throughout the year, including during the dormant season, promoting healthy growth with regular use. With a 1-litre ready-to-use spray and a 250g refill, it's convenient and easy to maintain your plants.
Vitax Organic Liquid Seaweed for Healthy Plants
Vitax Liquid Seaweed is a concentrated, all-natural seaweed extract that provides essential organic nutrients for your garden. It can be used as a liquid root drench or foliar spray, making it versatile for flowers, fruits, vegetables, shrubs, and trees. This product boosts crop quality, helping you achieve bigger and tastier harvests. Regular use enhances plant resilience, allowing your plants to better withstand environmental stress, pests, and diseases, ensuring a healthier garden overall.
Madame Grow Flower Karma Organic Fertilizer
Madame Grow Flower Fertilizer is a powerful bloom inducer designed to enhance flower production in therapeutic and hemp plants. It contains organic acids and amino acid derivatives that stimulate the metabolic processes involved in flowering. This means you can expect an increase in both the quantity and quality of flowers on your plants. With just a few days of application, you will notice an explosion of flowers, making it easier to cultivate heavier buds. This 100% organic product is suitable for foliar or spray application, particularly effective when used in the pre-flowering stage.
Frequently Asked Questions (FAQs)
1. Which fertilizer is best for flowers?
The best fertilizers for flowers contain nitrogen (N), which promotes growth; phosphorus (P), which enhances root systems and flower production; and potassium (K), which improves overall vigor and disease resistance).
2. Can you spray fertilizer on plants?
Foliar plant spray involves applying fertilizer directly to a plant's leaves as opposed to putting it in the soil. Foliar feeding is similar to humans putting an aspirin under their tongue; the aspirin is more readily absorbed into the body than it would be if it were swallowed.
During our spray flower fertiliser research, we found 12 spray flower fertiliser products and shortlisted 6 quality products. We collected and analyzed 6,859 customer reviews through our big data system to write the spray flower fertilisers list. We found that most customers choose spray flower fertilisers with an average price of £9.84.
The spray flower fertilisers are available for purchase. We have researched hundreds of brands and picked the top brands of spray flower fertilisers, including Plantsmith, AMK, GroGreen, Greenacres, Vitax Ltd. The seller of top 1 product has received honest feedback from 81 consumers with an average rating of 4.9.
Toby Butcher is a Horticulturist, and he earned his title as a Master Gardener in 2016. Toby has acquired a 25-year experience as a home gardener planting, designing, grooming vegetables and flowers. He is the leader of a plant group in Durham. Toby owns a blog where he publishes articles on growing and growing your flowers at home, in a vase, or in a garden.