Organic Catalogue - Fertilisers

https://www.organiccatalogue.com/equipment/feeds-compost/feeds-fertilisers/

The Organic Catalogue has been dedicated to promoting organic growing for more than 50 years, with the original company being formed in 1912.  We produce an annual printed Seeds and Supplies catalogue, and everything we sell is available here in our online shop: a great range of seeds, plants, fertilisers, composts, pest controls, weed controls, tools and other gardening supplies.

Tamar Organics

https://tamarorganics.co.uk/product-category/miscellaneous/compost-fertilisers/fertilisers

We are on a mission to encourage people to grow at least some of their own food and to do it organically. Organic growing helps to protect the environment, improves soil and encourages biodiversity.

Tamar Organics started as a small organic market garden in 1994. We have been registered as producers with the soil association since that time.

6X

https://www.ctsgardensupplies.co.uk/plant-and-garden-care/fertilisers/professional-general-purpose-fertiliser/6x-pelleted-chicken-fertiliser-20kg

Six times richer than farmyard manure! 6X 100% Natural Fertiliser contains no peat or chemicals and is a sterilised, weed and pathogen-free natural organic fertiliser so it is safe to use on all plants. It provides balanced nutrition for shrubs, flower beds, vegetables and lawns and is extraordinarily economical.

Fruit Hill Farm (Organic Fertilisers)

https://www.fruithillfarm.com/organic-soil-plant-fertilisers/granular-fertilizers.html

The aim of fertilization in organic farming is to ‘feed the soil to feed the plant’. 

The aim of our organically approved fertilizers is to allow biological soil processes (microbial activity) to progressively release the nutrients contained in the fertilizer so plants get a more balanced and continuous supply.

Fruit Hill Farm (Organic Liquid Feeds)

https://www.fruithillfarm.com/organic-soil-plant-fertilisers/liquid-fertilizers.html

Plants can absorb liquid fertilizers through both their roots and leaf pores. Foliar feeding can supply nutrients when they are lacking or unavailable in the soil. It is especially effective for giving fast-growing plants like vegetables an extra boost during the growing season.