A good lawn is one of those things that looks effortless and absolutely is not. That thick, green, spring-in-your-step turf you see in other people's gardens does not happen by luck, it happens because the lawn is being fed and cared for properly. The good news is that keeping a healthy lawn is far simpler than it looks once you understand what grass actually needs. Here is a straightforward, natural guide to feeding and caring for your lawn through the year.
By Kel Dickson, Senior Brand Marketing Manager at Gro Worm, organic, peat-free grower. Reviewed by Brian McCuskey. Updated August 2026.
Why lawns need feeding
It is easy to forget that a lawn is a living crop, and a hungry one at that. Every time you mow, you remove a little of the plant and, with it, some of the nutrients the grass has worked to produce. Over a season of regular cutting, that adds up to a real drain. Rain washes nutrients down out of reach, and heavy use from children, pets and garden furniture takes its toll too.
A lawn that is running low on food shows it. The colour fades from deep green to a tired yellow-green, growth slows, bare patches are slow to fill in, and moss and weeds start to move into the gaps where the grass has thinned. Feeding puts back what mowing and weather take away, so the grass grows thick and strong enough to crowd out those weeds and moss on its own. A well-fed lawn is its own best defence.
When to feed your lawn
Timing matters more than people expect, and in the UK the year breaks down into a few clear windows.
Spring is the main feed, and the most important one. As the soil warms and the grass wakes up and starts growing, it is hungry for nitrogen to fuel a flush of green leafy growth. A feed from around March to May sets the lawn up for the whole season, thickening it up and helping it green up quickly after winter.
Summer is about keeping things ticking over. A gentle feed during the growing season keeps the colour and vigour going, especially if the lawn is getting a lot of use. In a dry spell, hold off feeding until rain is due or you are able to water, because grass cannot take up nutrients from parched soil.
Autumn is the feed most people skip, and it is a mistake to. As growth slows, the lawn benefits from a feed that focuses less on leafy top growth and more on strengthening roots to see it through the winter. A strong root system going into the cold months means a lawn that bounces back far faster in spring.
Through winter, the lawn is largely dormant and needs no feeding. This is a time to simply stay off it when it is frosty or waterlogged, since walking on frozen grass damages the blades.
How to feed your lawn
There are two main ways to get food to your grass, and each has its place.
Granular feeds are scattered over the lawn and release their nutrients steadily over several weeks as they break down. They are ideal for the main spring and autumn feeds, giving a long, even supply of food. For the best results, apply granules to slightly damp grass and, if rain is not forecast within a day or two, water them in so they start working and do not sit on the surface. Spreading evenly is the key, since a heavy handful in one spot can do more harm than good.
Liquid feeds are diluted and watered on, and they work fast. Because the grass can take them up almost straight away, they are perfect for a quick boost of colour before an event, or for reviving a lawn that is looking tired mid-season. They are gentle and easy to apply evenly with a watering can or a hose feeder.
Many people use both across the year: granules for the big seasonal feeds that do the heavy lifting, and a liquid feed for a quick pick-me-up whenever the lawn needs it.
The natural approach
You do not need a cupboard full of harsh chemicals to keep a lawn healthy, and there are good reasons to avoid them. A natural, organic feed nourishes the soil as well as the grass, supporting the worms and microbes that keep the ground aerated and healthy underneath. That living soil is what makes the difference between a lawn that merely survives and one that genuinely thrives, and it is far kinder to the wildlife, pets and children who share the garden.
Worm castings deserve a special mention here. A light top dressing of worm castings works wonderfully on a lawn, feeding the grass gently while improving the soil structure below, and there is no risk of the scorching that can come with strong synthetic feeds. It is one of the oldest tricks for a healthy lawn and one of the easiest.
The rest of lawn care in brief
Feeding is the foundation, but a few simple habits keep a lawn at its best. Mow regularly but never cut too short, since scalping the grass stresses it and lets weeds in; aim to remove no more than a third of the height at a time. Keep the mower blades sharp so they cut cleanly rather than tearing. In autumn, rake out the build-up of dead moss and thatch and spike compacted areas with a fork to let air and water reach the roots. And in dry spells, an occasional deep watering does far more good than a daily sprinkle, encouraging roots to grow down deep where they are more resilient.
The simple takeaway
A thick, green lawn comes down to feeding it well at the right times: a strong feed in spring, a gentle top-up through summer, and a root-strengthening feed in autumn. Choose a natural feed that looks after the soil as well as the grass, mow and water sensibly, and your lawn will reward you with the kind of turf the neighbours quietly envy.
Frequently asked questions
When should I feed my lawn in the UK?
The main feed is spring, roughly March to May, when growth takes off. Add a gentle top-up through summer if the lawn is well used, and a root-strengthening feed in autumn. Do not feed in winter while the grass is dormant.
How often should I feed my lawn?
For most lawns, two to three feeds a year is plenty: a strong spring feed, an optional summer top-up, and an autumn feed. Granular feeds release slowly over several weeks, so you do not need to apply often.
Can you overfeed a lawn?
Yes. Too much feed, especially a heavy-handed granular application, can scorch the grass. Spread evenly, follow the rates, and water in if rain is not due. Gentle organic feeds are far more forgiving.
Is organic lawn feed better?
Organic feeds nourish the soil as well as the grass, supporting the worms and microbes that keep it healthy, and they are kinder to pets, children and wildlife. That living soil is what makes a lawn thrive rather than just survive.
Ready to give your grass what it needs? Take a look at our Lawn Boost range, an organic lawn feed that greens up your lawn while feeding the living soil beneath it.
