This fertilizer provides Nitrogen to encourage growth and rich green foliage, slow release phosphate for vigorous root development, and potash to help improve flower colour and the ripening of fruit and vegetables. Blood, Fish and Bone can be applied prior to sowing or planting and as required throughout the growing season. It is available in pack sizes from 1.25kg to 10kg. A traditional style fertilizer that is still favoured by many gardeners and, because it is produced from natural ingredients, is 100% organic.