In general terms fertilising your grass lawn in autumn or winter will improve the grass' health and appearance. It will ensure your lawn is fed the correct nutrients it needs to stay healthy.
Why fertilise my lawn?
Using lawn fertilisers in autumn will ensure your lawn is kept strong and dense and therefore able to cope with and recover well from difficult conditions such as drought, cold snaps or heavy traffic. Healthy lawns are tough and therefore more resilient to moss, weeds and disease.
Most lawn fertilisers will contain nitrogen, potassium and phosphorus, identified as NPK on the label, but can contain other trace element nutrients that can be beneficial for lawns. Autumn/winter lawn fertilisers contain more phosphate and potassium which will encourage the growth of roots and strengthen the lawn.
QUICK RELEASE: Autumn/Winter Fertiliser is designed for root strength over the cold winter months. The compound levels are NPK 3.12.12. It is low nitrogen fertiliser with high phosphate and potassium to strengthen the roots and stiffen the leaf blades. This will protect the grass plant from servere weather conditions during the Winter. This results in a healthier sward once growth begins the following spring.
SLOW RELEASE: Autumn/Winter Fertiliser compound levels are 10.5.20 of N,P,K. It is a late season fertiliser with low nitrogen and high potassium and magnesium, designed to feed all grassed areas just enough to aid late-season growth without causing gluts of growth of lush grass that will be susceptible to frosts and disease as the days get shorter. The potassium and magnesium strengthen grass roots and leaves to give protection throughout the winter resulting in a healthier sward the following spring.
It is important to note that spring/summer fertilisers should never be used in autumn or winter months. Spring/summer fertilisers tend to have increased levels of nitrogen and therefore encourage growth of grass. This is something we do not want in the winter as the harsher temperatures can damage new growth. Fertiliser should not be applied when the lawn is frozen or there is a drought as it will only be wasted – the soil will not absorb it properly.
After applying any fertiliser, it is important to water the granules particularly if there is no rainfall. If left dry, the fertiliser will burn and damage the existing grass. Our time-saving tip is to fertilise on a day when you are expecting a good amount of rain so it does the job for you, otherwise just water it off yourself using a hose/sprinkler system.