Best Nitrogen Flower Fertilisers of 2025

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Nitrogen flower fertilisers are a type of plant food designed to provide essential nutrients to flowers and plants. These fertilisers contain high levels of nitrogen, which is essential for healthy plant growth and helps to promote strong stems, lush foliage, and vibrant blooms. Nitrogen flower fertilisers come in various forms, including granules, liquid concentrates, and slow-release capsules, and are suitable for use in both indoor and outdoor gardening. With regular use, these fertilisers can help to improve plant health and promote more abundant and long-lasting blooms.
At a Glance: Our Top Picks
Top 4 Nitrogen Flower Fertilisers
Vitax Clematis Feed Fertiliser for Growth
Vitax Clematis Feed is a balanced fertiliser designed to provide the essential nutrients your climbing plants need for vigorous growth. Supplied in a convenient pelleted form, it is easy to handle and apply, making the feeding process hassle-free for you. This fertiliser is particularly suitable for Clematis, ensuring they thrive beautifully in your garden. By using this product, you can support the healthy development of not just Clematis, but other climbing plants as well, resulting in a vibrant and flourishing garden.
Elixir Gardens Fruit & Flower Fertiliser
Elixir Gardens Fertiliser is designed for professional growers and gardening enthusiasts alike. This high nitrogen and calcium blend helps to strengthen cell walls, promoting vibrant and healthy leaves, fruits, and flowers. With a quick-release formula, you can give your plants the nutrients they need without delay, ensuring they thrive throughout the growing season. Suitable for a variety of plants, including grapes and strawberries, this fertiliser supports robust growth and enhances the overall beauty of your garden.
GardenNova Organic Liquid Fertilizer for Peace Lilies
GardenNova Peace Lily Fertilizer is expertly crafted for indoor peace lilies, ensuring they receive essential nutrients with its 3-1-2 concentrate of nitrogen, phosphorus, and potassium. This organic formula allows you to care for your plants without harmful chemicals, promoting a healthy and natural growth environment. You can expect abundant blooms with more frequent flowering, enhancing the beauty of your home. Additionally, this fertiliser strengthens the roots, which is crucial for overall plant resilience and vitality.
Elixir Gardens Blueberry Fertilizer for Acid-Loving Plants
The Elixir Gardens Blueberry Fertilizer is designed to provide a complete soluble NPK feed for your ericaceous plants. This means that you can maximise your yield with the balanced range of micro and macro nutrients it contains. With its extremely potent formula, you only need 0.5g per litre of water, allowing you to create up to 2000 litres of liquid feed, which makes it cost-effective. Additionally, it dissolves quickly in water, producing an acidic solution that boosts growth and helps adjust irrigation water pH.
Frequently Asked Questions (FAQs)
1. Which Fertilisers are high in nitrogen?
Comfrey, nettles and liquid from wormeries all make excellent liquid fertilisers. Comfrey is potash rich, so is useful for flowering and fruiting plants and vegetables; nettles are high in nitrogen, especially in spring, and the liquor from a wormery is a good general feed.
2. Is high nitrogen fertilizer good for flowers?
High Nitrogen in Soil Too much nitrogen present in the soil can be just as harmful to plants as too little. When there is high nitrogen in soil, plants may not produce flowers or fruit. As with nitrogen deficiency in plants, the leaves may turn yellow and drop.
3. Does nitrogen encourage flowering?
Nitrogen is an integral part of chlorophyll manufacture through photosynthesis, stimulates green leafy growth and promotes fruit and seed development; Phosphorus supports the transfer of energy throughout the plant for root development and flowering; Potassium is essential for photosynthesis and regulates many ...
During our nitrogen flower fertiliser research, we found 17 nitrogen flower fertiliser products and shortlisted 4 quality products. We collected and analyzed 5,985 customer reviews through our big data system to write the nitrogen flower fertilisers list. We found that most customers choose nitrogen flower fertilisers with an average price of £7.39.
The nitrogen flower fertilisers are available for purchase. We have researched hundreds of brands and picked the top brands of nitrogen flower fertilisers, including Vitax Ltd, Elixir Gardens, GardenNova. The seller of top 1 product has received honest feedback from 7,059 consumers with an average rating of 4.2.

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.