Facing a winter wonderland? While a snowy landscape can be breathtaking, the recent cold snaps across the UK have likely left many gardeners worried about their plants. But don't despair! With a few proactive steps, you can protect your precious greenery from the worst of the winter weather.
Mark Sage, Horticultural Buying Manager at B&Q, explains, 'January is typically one of the coldest months, and the damage from frost, snow, and cold winds can be devastating to vulnerable plants.' However, he reassures us that most damage is entirely preventable with some forward planning, especially for container plants and tender shrubs.
So, what can you do if you're caught off guard by a sudden snowfall? The good news is, there's still plenty you can do to shield your garden from the chill.
- Shield Your Plants Before the Frost Arrives
Prevention is always better than cure. If frost or snow is in the forecast and you haven't prepped your garden, here's what to do.
'The best defence for tender shrubs and non-hardy exotics is a protective cover to protect them from frost and snow,' advises Mark. 'Gently wrap vulnerable plants in insulating horticultural fleece or fleece jackets. This keeps the wind and frost off while still allowing light and air circulation. Be sure to cover the base of the plant as well.'
Mark adds, 'Don't forget to insulate your containers, too. Potted plants are most at risk because their roots are exposed to the cold on all sides. Prevent root balls from freezing solid by insulating the pots themselves. Use bubble wrap secured with twine, or, for the most secure protection, bury the entire pot into the ground until the rim is level with the soil. You can then mulch the surface for extra protection.'
- Mulch Your Borders for Protection
When it comes to garden beds and borders, mulching is key to insulating the soil and shielding shallow roots from deep frost penetration, Mark advises.
'Apply a thick layer (around 10cm) of bark chippings, compost, or even fallen leaves around the base of vulnerable plants like roses, salvias, and tender herbs. This acts like a blanket, keeping the soil temperature stable.'
- Check and Secure Structures
Besides frost and snow, high winds are common in January, so it's essential to check any garden structures as well as plants, advises Mark.
'Loose fence panels, shed roofs, and climbing plant supports should be checked and repaired,' says Mark. 'And for exposed sites, consider installing temporary woven hurdles or wind-permeable fencing to break up strong winds and prevent 'wind scorch' on evergreens.'
- Avoid Walking on the Grass After Frost or Snow
It's tempting to frolic in the snow, but if you want to protect your lawn, avoid walking on it when it's frosty or snowy.
'It’s best to avoid walking on the lawn for as long as possible after it has snowed or when it is frosty,' says Mark. 'When the grass is wet, frozen, or covered in snow, it becomes much more susceptible to damage. Walking on it can compact the soil and bruise the delicate grass blades, which are brittle. Treading on them crushes the cell structure, causing brown patches and making the turf susceptible to disease when it thaws.'
If you must walk on the grass, consider using stepping stones or a temporary path.
- Brush Snow Off Shrubs and Trees
While snow can insulate the soil, the weight of it can damage fragile branches.
'You should brush snow off conifers, large evergreens, and hedges as quickly as possible,' advises Mark. 'Heavy snow can be surprisingly weighty, and leaving it in place risks causing the branches to splay outwards or even snap under the pressure.'
Using a soft broom to gently knock the snow off will help the plant maintain its shape and prevent permanent structural damage.
- Check Plants as the Snow Thaws
'Once the snow starts to thaw or has cleared, check newly planted trees and shrubs to ensure that frost or heavy snow hasn't ‘heaved’ them, lifting the roots out of the ground,' advises Mark. If they have become loose, you should gently heel them back in (firm the soil around the base with your foot) to ensure the roots are in good contact with the earth.'
'For newly planted trees, adding stakes can provide extra stability against wind and heavy loads during their first few years.'
- Repair Any Damage After the Thaw
'After a thaw, you can carry out lawn repairs and general garden maintenance, provided the soil is not too wet or still partially frozen,' suggests Mark. 'If the lawn has become compacted or puddled, you can spike it with a garden fork or aerator to improve drainage and help the grass recover.'
'It’s also a good time to check for any branches that were damaged or crossing and prune them back to healthy wood. But resist heavy pruning now, it’s best to wait until spring to see what's truly dead, as early pruning can remove buds for spring flowers. Prune only broken, damaged wood now.'
But here's where it gets controversial... Some gardeners swear by a heavy blanket of snow as a natural insulator, while others are more cautious about the weight. What's your take? Do you agree with these tips, or do you have other methods for protecting your garden in winter? Share your thoughts in the comments below!
