Grass Seed Vs Turf For A New Lawn
Turf gives you a lawn the same afternoon but seed costs far less and copes better with shade.
Written by Archie Rich
Updated
The short answer
Grass seed is the better choice for a new lawn when budget matters, the area is shaded or you only need to patch bare spots. It costs far less than turf and comes in more grass types, including shade mixes. Turf is better when you want a usable lawn straight away, since it gives instant cover and needs a shorter spell of aftercare. Both need the same thorough ground preparation.
Seed and turf start from exactly the same place, a cleared, levelled and raked patch of soil, and once either has established you won't be able to tell them apart. The difference is everything in between. Turf costs more but gives you green cover the day it goes down, while seed is cheap and takes a few weeks of watering and patience before it looks like a lawn.
The side-by-side comparison below sums up how they differ, with the detail on each option underneath.
Grass Seed And Turf Compared
| Factor | Grass Seed | Turf |
|---|---|---|
| Cost for a large area | Far cheaper | Expensive |
| Time until it looks like a lawn | A few weeks | Straight away |
| Choice of grass types | Wide, including shade mixes | Limited |
| Shady or damp spots | Pick a mix to suit | Can struggle |
| When to buy it | Stores for years | Lay the day it arrives |
| Physical effort | Light | Heavy lifting and carrying |
| Aftercare | Longer spell of watering and bird protection | Shorter spell of daily watering |
The Pros And Cons Of Laying Turf
Turf earns its price on speed. You can lay turf yourself in a few hours on a modest garden, and the joints are hidden within weeks once the roots knit into the soil below.
- Instant green cover on the prepared ground
- Roots establish quickly, so it can be mown sooner than seed
- Neat, straight lawn edges are easy to cut in
- Heavy rain won't wash it away
- Can go down in winter as long as the ground isn't frozen or waterlogged
The downsides are mostly about cost and logistics:
- Expensive once you're covering a large area
- Little choice over the grass mix in the rolls
- Rolls are heavy, and barrowing a full delivery around the garden is hard work
- Standard turf can struggle in heavy shade or on wet ground
- It has to be laid as soon as it's delivered, before the rolls dry out or yellow
The Pros And Cons Of Sowing Grass Seed
Seed wins on price and flexibility. A box goes a long way and keeps for years in a dry shed, so there's no rush to use it. You can also buy a blend made for shade, heavy wear or a fine ornamental finish, and for a worn patch it's the easier fix, as you only sow what you need.
- Far more cost-effective than turf on bigger areas
- Ideal for patching bare spots and small corners
- Wide choice of seed mixes for shade and different soils
- Simple to spread by hand or with a spreader
- No rush to sow once you've bought it
The trade-off is time and attention:
- It takes a few weeks to grow from seed into a lawn
- Birds will happily pick at freshly sown seed
- Needs regular watering until it's established
- Heavy rain can wash seed into puddles and leave thin patches
- The grass needs to reach at least 7 to 8 cm before the first cut of new grass
Preparing The Ground For Seed Or Turf
Whichever you choose, the lawn will only be as good as the soil underneath it. Any shortcuts here come back later as bumps, puddles and thin patches, so put most of your effort into these steps:
- Clear the area: Strip out old grass, weeds, stones and debris so nothing competes with the new lawn for water and nutrients.
- Test the soil if you're unsure: A simple pH and nutrient kit from a garden centre tells you whether the ground needs anything adding.
- Break up compacted ground: Loosen it with a fork, or for bigger areas use a rotavator to turn the soil and improve drainage and root growth.
- Improve poor soil: Work in compost or well-rotted manure where the soil is thin, sandy or heavy clay.
- Level it out: Fill dips with topsoil, skim off high spots and firm the surface with a garden roller or by treading it in.
- Check the slope: Make sure water runs away from the house and doesn't pool in one corner.
- Final rake: Rake out stones and clumps to leave a fine, crumbly surface that's firm underfoot but loose on top.
The steps are the same for both, but the detail depends on your ground. A heavy clay garden needs more drainage work, while a sandy one benefits from extra organic matter to hold on to moisture.
Which Should You Choose For Your Lawn
Go for turf when the lawn needs to be usable quickly, such as before a rental goes back on the market or when children and dogs need somewhere to play this summer. It's also the safer bet on a slope, where seed can wash downhill in a heavy shower.
Pick seed for large areas, shaded corners and patch repairs, or whenever budget comes first. The best grass seed for UK lawns grows into a lawn that looks just as good as turf once it's established, and a large box covers a far bigger area for the money. Timing matters more with seed, so check the best time to plant grass seed before you start.
If neither appeals because you never want to mow again, our pick of the best artificial grass covers the fake alternative.
More Questions Answered
Is it cheaper to seed or turf a lawn?
Seeding a lawn is much cheaper than turfing it, and the gap grows with the size of the area. A single box of grass seed covers a large patch for the price of a few rolls of turf. Ground preparation costs the same for both, so the saving comes almost entirely from the material itself.
Does turf or seed make a better lawn?
Neither makes a better lawn in the long run. Once seed has established and turf has rooted in, the two look the same, as long as the ground was well prepared and the grass type suits the spot. Seed gives you more choice of grass mix, which can make it the better option for heavy shade.
Can you lay turf over grass seed that has failed?
You can lay turf where grass seed has failed, but clear and rake the area first rather than putting turf straight on top of thin grass and weeds. Turf needs to sit on loose, bare soil so its roots can grow down. Fix whatever caused the seed to fail, such as poor drainage or heavy shade, before laying.
How soon can you walk on new turf compared to grass seed?
New turf can take light foot traffic sooner than grass seed, once its roots have gripped the soil and the rolls won't lift when you tug a corner. Newly sown seed needs to be kept off until it has grown and had its first cut, because footsteps flatten seedlings and press seed into the mud.
Should I choose seed or turf for a sloping garden?
Turf is the safer bet on a slope. A heavy shower can carry fresh seed downhill and leave the top of the bank bare, while turf stays put. Whichever you choose, shape the ground so water runs away from the house rather than collecting at the bottom.
Can I lay turf in winter?
Yes, as long as the ground isn't frozen or waterlogged. Book the delivery for a day when you can lay it straight away, because rolls left stacked dry out and yellow. Seed is far fussier about the season, so if you're working in winter, turf is the one that'll take.
How do I stop birds eating newly sown grass seed?
Cover the sown area with fine netting or put up bird deterrents until the seedlings are up, as birds will happily pick at freshly sown seed. Lightly raking the seed into the surface also hides much of it from view. It's one of the extra jobs seed asks of you that turf doesn't.
What's the one mistake people make with a new lawn?
Rushing the ground preparation. It's tempting to get the seed or turf down quickly, but uneven or compacted soil gives you a lumpy lawn with puddles and thin patches that no amount of feeding will fix. Take the time to clear, loosen and level the ground, then finish with a fine rake.
Archie is our gardening specialist. He started out as an apprentice at a gardening firm, built up his own knowledge from there and now writes most of our garden content.