A Family Run Company Growing With You. FREE NEXT DAY DELIVERY FOR 5KG BAGS AND ABOVE CHECK ZONES BELOW BEFORE ORDERINGAS WE DO NOT COVER ALL OF THE UK ALL OTHER ZONES CARRY A SURCHARGE PLEASE SEE BELOW FOR ZONES. Bags under 20kg will be sold in White/clear bags. PRE-SEED FERTILISER NITROGEN 6% PHOSPHORUS 9% POTASSIUM OXIDE 6% Spread 3-5 days before sowing grass seed Using Ivisons Pre-seeder fertiliser before turfing or seeding is a great way of ensuring that your new lawn gets off to the best possible start. It is especially good when used on thin or low nutrient soil. Its high Phosphorus content not only aids seed germination but also improves root development. It is also excellent when applied as a lawn tonic throughout the growing season. Treatments must me At least 6 weeks apart.