The British love their lawns. The perfect emerald-green, velvet-smooth sward is a thing of envy, especially in parts of the world where the climate isn’t quite so lawn-friendly. But it takes much time and energy to achieve such a standard, not to mention lots of water.
There is another factor to consider: a tightly-clipped, weed-free lawn isn’t particularly wildlife-friendly. A fine ornamental lawn is likely to contain only three or so types of grass which limits the variety of creatures it can support. Blackbirds might use it to hunt for worms but the scope for wildlife is limited.
However, there’s no need to replace your lawn if you want to make your garden more attractive to wildlife. Simple steps, such as reducing mowing frequency and stopping feeding will all help.
Put away the weedkillers and fertilisers
Lawn weedkillers and fertilisers are designed to eliminate any plant that is not a grass and to boost the growth and greenness of the lawn grasses. Stopping using them won’t mean your lawn becomes immediately brown or unsightly, but it will at least give the flowering plants a chance, meaning they can provide nectar and pollen for bees and other pollinating insects. Dandelions, for example, are an excellent early source of pollen for flies, bumblebees and solitary bees, flowering even in the winter months.
It's also not a bad idea to reduce unnecessary input of pesticides (which includes weedkillers) and fertiliser in a garden, many of which may have hidden environmental costs either in their use or manufacture.
Give the mower a rest
Just setting the mower on a higher cut might be sufficient to allow a few low-growing daisies and dandelions to flower. Leaving the grass a little longer also provides extra protection from the sun and so helps make the lawn more resilient during a drought.
Or step it up a notch by reducing the mowing frequency. Experiment with mowing on a 3, 4 or 6 week cycle to give lawn flowers such as speedwell, selfheal and buttercup time to bloom. Bees are especially fond of clover.
Another approach is to simply stop mowing altogether between March and the end of August. Many grasses are food plants for a wide range of invertebrates including the caterpillars of butterflies and moths so this will give them chance to lay eggs and complete their life cycle. Butterflies you might attract include the skippers, meadow brown, speckled wood, gatekeeper, ringlet and small heath. If the grass growth is very lush you may need to mow once or twice in the summer but try to keep at least one patch unmown to avoid disturbing any hungry caterpillars.
Add in some wildflowers
If your lawn doesn’t seem to contain many ‘weeds’ or you fancy adding some more wildflowers, sow seed under cover in early spring in seed trays and when they are big enough, plant them out into the lawn. Alternatively, plant wildflower plugs which can be sourced from nurseries. Spring flowering bulbs such as fritillaries, or crocus can be planted in autumn. Cut the grass short first to help the plants or bulbs establish. Scattering wildflower seed onto an area of grass doesn’t usually work.
Attractive wild flowers for short turf;
Lotus corniculatus (bird’s-foot trefoil)
Euphrasia (eyebright)
Prunella vulgaris (self heal)
Viola (violets)
Thymus polytrichus (wild thyme)
And for long grass left uncut for most of the summer;
Succisa pratensis (devil’s-bit scabious)
Knautia arvensis (field scabious)
Eupatorium cannabinum (hemp agrimony)
Heracleum sphondylium (hogweed)
Centaurea (knapweeds)
Malva sylvestris (mallow)
Dipsacus fullonum (teasel)
Origanum vulgare (wild marjoram)