As the leaves begin to change colour and the temperatures cool down, you might think it's time to put your lawn care routine on hold until spring. However, if you want a lush, healthy, and vibrant lawn come next year, October is the good time to apply fertiliser. While many homeowners may not realise it, fertilising your grass in October offers several benefits that can make a significant difference in the long-term health and appearance of your lawn. In this blog post, we'll explore why you can apply fertiliser to your grass in October.

Root Development

One of the primary reasons to fertilise your grass in October is to promote strong root development. As the weather cools down, your grass shifts its focus from top growth to root growth. By applying fertiliser in October, you provide essential nutrients to your grass, helping it develop deep, robust root systems. Strong roots are the foundation of a healthy lawn, allowing your grass to withstand drought, pests, and other stressors.

Winter Preparation

Fertilising in October also helps your grass prepare for the harsh winter months. The nutrient in the fertiliser helps your grass to store energy reserves in its roots, which it will use to survive the winter. When spring arrives, your grass will have a head start, as it can tap into these reserves for early growth and greening. 

Weed Suppression

October is an good time to fertilise because it allows your grass to out compete weeds. Weeds tend to be less active as the temperatures drop, making it an ideal time for your grass to take up the nutrients from the fertiliser without as much competition. A well-fed lawn will have thicker, healthier grass that naturally suppresses weeds, reducing the need for herbicides and weed control measures.

Disease Resistance

Fertilising your grass in October can also boost its resistance to diseases. A well-nourished lawn is better equipped to fend off common lawn diseases. The nutrient from the fertiliser helps your grass maintain its vigour and overall health, making it less susceptible to fungal infections and other diseases that can plague lawns.


Fertilising your grass in October can lead to a healthier, more resilient, and visually appealing lawn. By promoting root development, preparing your lawn for winter, suppressing weeds, and enhancing disease resistance. October fertilisation sets the stage for a beautiful lawn in the coming year.