Best Organic Flower Fertilisers of 2025

Phostrogen Ericaceous Plant Food is designed for healthier, more beautiful acid-loving plants. This organic formula is ideal for azaleas, camellias, and rhododendrons, making it perfect for your garden. It helps prevent leaf yellowing by being rich in iron, ensuring greener and healthier leaves. The easy application process allows you to simply apply it to the base of the plant and hoe before watering, making plant care straightforward and effective.

Vitax Q4 Fertiliser is an all-purpose solution perfect for flowers, vegetables, fruits, and more. This professional-quality fertiliser promotes bigger, brighter blooms and bumper crops, ensuring your garden thrives. It contains essential nutrients and trace elements for healthy growth, making it ideal for any gardener. Additionally, its easy-to-handle, low dust, pelleted format means you can apply it without the mess. Simply work it into the soil and water it in for optimal results.

Vitax Liquid Seaweed is a concentrated, all-natural nutrient solution designed to support healthy growth in your garden. It can be used as a liquid root drench or foliar spray, making it versatile for flowers, fruit, and vegetables. Regular application not only promotes larger, tastier crops but also enhances the resilience of your plants against environmental stress and pests. With easy application methods, it simplifies the process of maintaining the health of your garden plants.

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.

Will & Al's Bloom Fertiliser is a nutrient-rich solution made from 100% natural ingredients, designed to enhance plant strength and promote stunning blooms. By using this fertiliser, you can ensure healthier plants throughout the growing season, whether in pots, baskets, or garden beds. Its balanced composition includes essential nutrients like nitrogen for lush growth, phosphorous for strong roots, and potassium for sturdy stems, giving your plants a comprehensive boost. Plus, it’s safe for pets and wildlife, creating a nurturing environment for all.

The SOW 'N' GROW Fertiliser is a versatile organic solution for your garden needs. This 1.75 kg pouch can cover up to 50 square metres, making it ideal for lawns, flower beds, and vegetable patches. It is both pet-friendly and child-safe, allowing you to apply it easily by hand or using a spreader. By optimising soil pH and structure, this fertiliser enhances nutrient availability, ensuring your plants receive the best possible start for healthy growth.

The Vitax Shrub Fertilizer is a high-quality feed designed specifically for all ericaceous plants. Its organic-based formula, enriched with added iron, promotes robust growth and vibrant flowers, ensuring your plants thrive. This product is particularly ideal for heather, acid-loving plants, blueberries, and raspberries, helping you cultivate a flourishing garden. Supplied in a convenient resealable pouch, it makes application easy and mess-free, allowing you to keep your fertiliser fresh and ready for use.

The CULTIVERS Flower Fertilizer is designed to enhance the beauty and fragrance of your flowers. It boosts flowering, ensuring you enjoy vibrant blooms in your garden. Additionally, it intensifies the colours, making your plants more visually appealing. Being 100% organic and of vegan origin, you can use it with confidence, knowing it is safe for the environment. This fertiliser also helps reinforce resistance to diseases, promoting healthier plants overall.

The Parle Ropvatika Flower Booster is a powerful organic fertiliser designed to enhance your flowering plants. It contains natural, Non-GMO probiotics that improve floral production, ensuring your blooms look vibrant and smell delightful. This product helps create a symbiotic relationship between beneficial microbes and your plants' roots, promoting better nutrient absorption. Additionally, it enhances water retention in the root zone, providing the exact nutrients needed for optimal growth from seed to harvest.

The R&R SHOP Earthworm Humus is a premium organic product that enhances the soil in your gardens. With 80% dry matter and 60% organic matter, it provides essential nutrients such as nitrogen and phosphorus in immediately available forms. The neutral pH of 7.5 ensures a balanced environment for your plants. This humus improves water retention and aeration in the soil, helping your plants thrive. The convenient resealable zip bag allows for easy storage and long-lasting use, making it an excellent addition to your gardening supplies.