Spring Lawn Care
What your lawn actually needs in spring, the eco way. Scarifying out the winter moss, overseeding thin patches, and the first cuts done right. No chemicals, ever.
What your lawn actually needs in spring, the eco way. Scarifying out the winter moss, overseeding thin patches, and the first cuts done right. No chemicals, ever.
Spring is the moment a lawn either gets going for the year or gets left behind. After a wet South East London winter most lawns wake up thin, mossy and flattened, and what you do in the next few weeks decides how the grass looks all the way through to autumn. The good news is that good spring lawn care is mostly simple, and you do not need a single chemical to do it well.
This guide covers when to actually start, the spring jobs that matter most, and the eco-friendly scarify-and-overseed approach we use to revive tired lawns across South East London every spring. It is grounded in Royal Horticultural Society guidance and in what we see on real lawns here on the heavy local clay.
The single most common spring mistake is starting too early. A lawn does not run to a calendar, it runs to soil temperature. The Royal Horticultural Society is clear that you wait until the weather warms up and the grass is genuinely back into growth, which in the UK is usually late March into April, before giving the lawn its extra attention. Scratching at a cold, dormant lawn in February does nothing useful. Once it is growing, the spring jobs in order of importance are:
Here is the honest part. You will not change the heavy London clay, and you do not need to. A good spring is not about expensive ground works or a shelf of products. It is timing, a proper scarify, fresh seed in the gaps and a sensible first cut. The rest of this guide is exactly that, in order.
Every garden centre in the country sells a spring weed, feed and moss-kill in one bag, and it is the default spring lawn routine for most people. We do not use it, on any lawn, ever. It blackens the moss without removing it, so the moss is still there and grows straight back, and the weedkiller in it does not stop at the dandelions.
A chemical that kills weeds and moss is indiscriminate. We have seen a serious decline in insects, and in the small birds and other wildlife that depend on them, and the steady spread of lawn chemicals across millions of gardens is very likely part of that story. Your lawn is a small piece of habitat. We are not willing to poison it for a quick spring shortcut.
The eco approach is not harder, it is just more physical. Scarify the moss out rather than dyeing it black, overseed the gaps so thick grass crowds weeds out on its own, and pull the few weeds that appear by hand. You end up with a genuinely healthier lawn, not a chemically suppressed one.
A lawn that comes out of winter thin and mossy is not a write-off, it is a spring job. One proper scarify and overseed while the grass is waking up does more than a whole summer of mowing a weak lawn. Get the timing right and the same lawn that looked dead in March is thick and green by June. We do exactly this on tired lawns across South East London every spring.
If you only do one thing for your lawn in spring, make it this. Scarifying is mechanically raking the moss and dead thatch out of the lawn with an electric scarifier. Over a wet South East London winter that layer of moss and dead growth builds up and smothers the grass, and no amount of mowing or feeding fixes a lawn that cannot breathe.
People ask whether a spring-tine rake will do instead. It helps, but the difference is depth and power. A hand rake mostly tickles the surface. A proper electric scarifier pulls out a surprising amount of material, often several bags' worth from even a small lawn, which is what actually clears the winter moss and lets light and air back to the roots.
Scarifying does leave the lawn looking thin for a week or two, which is exactly why it is always paired with overseeding in spring. The full spring checklist below puts it in order, start to finish.
This is the order we work in on a spring lawn revival. You can do it yourself with the right kit, or book us to do the whole thing in one visit.
Patience is the first job. Hold off until the soil has warmed and the grass is clearly back into active growth, usually late March to April in the UK. Everything else works far better on a lawn that is awake, and nothing you do to a cold, dormant lawn in February is worth the boot prints across wet clay.
Pick up fallen branches, leaves, and anything the winter dumped on the lawn, then give it a light rake to lift the flattened grass and pull off loose surface debris. This is also when you get a true look at how much moss and bare patch the winter has left you.
The first cut of the year should just take the tips off with the mower set high. The RHS recommends mowing roughly once a fortnight in early spring, moving towards weekly as growth speeds up. Never scalp a lawn in spring. A short, stressed lawn in April is a weedy, mossy lawn in July.
The big one. Work an electric scarifier across the whole lawn to pull out the moss and dead thatch the winter built up. Go over the worst areas more than once. Expect a lot of material, often several bags' worth from a small lawn. No chemicals, no blackening, just the moss physically gone.
Scarifying always leaves the lawn looking thin, so seed straight into the gaps. The RHS confirms mid-spring overseeding works once the weather is milder. We use a pet and child friendly seed that establishes well even in the shady, heavy-clay gardens common across South East London. Keep it damp while it germinates.
Nothing makes a spring lawn look cared for faster than a clean, re-cut edge against the borders. It is quick, it is free, and it instantly turns a scruffy lawn into a deliberate one while the rest of the work establishes.
Spring is when lawn weeds appear. The RHS notes hand-weeding is an effective method, and it is what we do. Lift the obvious ones out rather than spraying the whole lawn and everything living in it. Thick grass from the scarify and overseed does most of the weed control for you.
If a lawn is genuinely starved, the RHS advises a spring high-nitrogen feed at the manufacturer's rate in mid-spring, only when needed. We never use chemicals, so our version is to build a thick, vigorous sward through scarifying and overseeding rather than a feed-and-spray programme. A dense lawn feeds itself far longer than a sprayed one.
Spring lawn care does not have a fixed start date, it has a trigger: active growth. In most UK gardens that means late March into April, but a cold spring pushes it later and a mild one brings it forward. Watch the grass, not the calendar.
The heavy scarify-and-overseed work is best done once the soil has warmed in mid-spring, when seed germinates fast and there is still natural rainfall to help it establish. Doing it too early on cold, sodden clay just wastes the seed.
Through the rest of spring it is mostly mowing, rising from roughly once a fortnight to weekly as growth speeds up, plus the odd hand-weed. A scarify and overseed once a year is enough for most lawns, with a tired or long-neglected one best done in both spring and early autumn for its first year.
This worries a lot of people in spring, so it is worth being straight about it. A freshly scarified spring lawn looks rough. It can look almost bare, with thin, scratched-up soil on show, right when you wanted it looking its best for summer. That is normal, and it is actually a good sign.
Here is the part nobody explains. Scarifying mostly pulls up everything that is not grass: the winter moss, dead thatch, weeds and old debris. A lawn that looked green to you in March was often only part real grass, the rest moss. So when it looks patchy in April, that is not damage. That is the scarifier having removed exactly what it was meant to, and showing you how thin the real grass underneath always was.
That is precisely why spring scarifying and overseeding go together. The new seed fills those gaps while the soil is warming, and within a few weeks you have a lawn that is genuinely grass, thicker and healthier than the moss-and-weed mix you started the year with. The only real spring mistake is scarifying and then doing nothing. Overseed straight after, keep it damp, and stay off it while it establishes.
You can absolutely do spring lawn care yourself, and plenty of people do. The single biggest factor in the result is the scarifier. A professional electric scarifier removes far more winter moss and thatch than a manual rake or a cheap consumer model, which mostly scratch the surface. Even seed distribution matters too, as hand spreading leaves clumps and bare spots that show up weeks later.
If you would rather have the whole spring revival done properly in one go, we scarify, overseed and tidy lawns across South East London in a single visit. You know the price before you book, there are no quotes or site visits, and your garden is guaranteed to be tidier than when we found it.
One visit, one price, everything included. Your gardener Josh scarifies out the winter moss, overseeds the thin patches and tidies the edges, then leaves you with a lawn that thickens up over the following weeks into summer. The same named gardener every visit, never a chemical in sight.
Go by the grass, not the calendar. Wait until the soil has warmed and the grass is visibly back into active growth, which in the UK is usually late March to April. Working a cold, dormant lawn in February achieves very little and can do more harm than good.
Yes. Spring is one of the two best windows for it, the other being early autumn. Winter leaves most lawns full of moss and dead thatch, and raking or scarifying it out in mid-spring once the weather is milder, then overseeding the thin patches, is the single biggest thing you can do for the lawn that year.
The RHS advises a spring or summer high-nitrogen lawn fertiliser applied at the manufacturer's rate in mid-spring while the lawn is actively growing, and only when it is actually needed. We never use chemicals on any lawn, so our spring work is scarifying and overseeding to thicken the grass naturally rather than a feed-and-spray programme.
Higher than you think. Take the tips off with the blades raised for the first cuts and never scalp it. Mow little and often, around once a fortnight early in spring and moving towards weekly as growth speeds up. Cutting too short in spring weakens the grass and lets moss and weeds straight back in.
Scarify it out mechanically and overseed the gaps. A chemical moss killer only blackens the moss and it grows straight back, as well as harming the wildlife your garden supports. We never use chemicals. Physically removing the moss in spring and thickening the grass is what actually works.
Yes. Early autumn is the ideal time, but the RHS confirms overseeding can also be done in mid-spring once the weather is getting milder, as long as you keep the new seed damp while it germinates. We use a pet and child friendly seed that establishes well even in the shady, heavy-clay gardens common across South East London.
Our all-in spring restoration, which scarifies out the winter moss and overseeds in one visit, starts at £249 for a regular lawn and £349 for a large lawn, with no travel charges anywhere in South East London.
The big spring job has its own deep-dive in our guide on how to scarify a lawn, and there is a full cost breakdown in our lawn care prices guide. To see the whole service, including the pet-friendly seed we use, visit our lawn care service page.
Book online in 60 seconds. Instant confirmation, transparent pricing, no quotes needed.