Posts Tagged ‘protecting garden from frost’

How to Prepare Your Garden Against Frost

November 5th, 2018 | News | 0 Comments

Temperatures have noticeably dropped over the past few weeks. The garden has gotten close to freezing on a number of occasions, so it’s safe to say the first frosts of winter will be with us any minute. Preparing the garden for the colder months ahead is a wise move to keep overwintering plants and your hard-working soil happy.

Read on or watch the video to discover simple, cost-effective ways to do just that.

Mulch Bare Soil

Leaving soil exposed risks depleting the beneficial life contained within it. Keep the likes of worms, bugs and fungi happy by laying organic matter over the surface before it gets too cold. A layer of  material such as well-rotted compost or manure, spread 1-2in (3-5cm) deep is thick enough to keep soil life fed while nourishing the soil itself, yet thin enough to enable hard frosts to penetrate the soil below, thereby helping to control overwintering pests.

Row Covers at the Ready

Keep row covers or horticultural fleece at the ready.


Store it somewhere dry, ideally neatly rolled up and off the ground out of the way of vermin such as mice.

Dirty polythene covers should be washed down then dried so they’re ready to deploy.

When frost threatens, or if you simply want to extend your cropping period, the row covers can quickly be put into position, held down at the sides with stones, bricks or staples.

Homemade Protection

Don’t forget the many homemade options for cold weather protection. Clear plastic bottles, cut in half, are great for slipping over individual small plants, either outside or as an added layer of warmth inside the greenhouse.

Cold frames can be costly but it’s very easy to make your own. For example, one can be made by securing a rigid piece of polycarbonate onto a simple wooden frame, with hinges at the back to allow for the lid to be opened and closed – very simple, but very effective.


Temporary Hoop Houses

Row covers may also be secured onto homemade hoops, making a handy hoop house. A way of achieving this is by using lengths of PVC water pipe secured onto lengths of rebar hammered into the ground and connected at the top by a central ridge of piping. It’s an effective way to keep winter hardy salads and vegetables safe from harsh weather.


Protecting Root Crops

Many root crops such as carrots and beetroot can be left in the ground until they’re needed. Some, like parsnips, actively improve with frost, becoming more tender and sweeter.

Lay a mulch of compost, straw, dried leaves or leaf mould about 6 inches (15cm) thick to help keep frosts at bay, but if the ground is likely to freeze solid for weeks on end, dig up your root crops to store them somewhere cool, dry and frost-free.

Protect Containers

In winter the biggest threat to containerised plants like herbs is wet. Persistently wet potting soil can freeze, turning lethal in cold weather. Make sure excess moisture can drain away by lifting up containers onto pot feet. You can use elegant purpose-sold pot feet, or just improvise with stones, for example.

Delicate containers can also crack if potting soil freezes solid and expands. You can stop this happening by wrapping pots up in bubble wrap, burlap or hessian, or look for pots sold as frost-resistant. Sensitive plants and pots can also be moved somewhere more sheltered – against the house for instance, or into a greenhouse.


Warmer Greenhouse

Inside a greenhouse it makes more sense to protect individual plants rather than trying to heat up the entire structure. Wrap frost-sensitive plants up in row covers or fleece, or section off an area of the greenhouse and heat this smaller space instead.

Old polystyrene fish boxes are great for insulating smaller plants like winter salad leaves against the worst of the cold. Most already include drainage slots at the corners, so you can fill them with potting soil and plant directly – or just drop trays and pots into the boxes for a snug fit. Cover with fabric or plastic overnight for extra temporary protection on extra-cold nights.

Know Your Frost Date

Knowing when to expect your first frost is important for planning your frost protection. The GrowVeg Garden Planner uses your precise location to anticipate the date when this is likely to occur, so you’re pre-warned and can take action to winter-proof your plot. Check the calender to find your expected first frost date, but don’t forget to keep an eye on the weather forecast too.

Help your plants stay warmer or use the frosts to your advantage. Either way, being prepared will help you to successfully work with winter.

If you have any tips or tricks for getting your garden winter-ready, comment below or head over to our Facebook and Twitter page.

December Gardening Advice

December 2nd, 2017 | News | 0 Comments

December is the month where we swap our garden wellies for festive frocks and a glass of something bubbly. As well as looking ahead to 2018, we should also take a moment to reflect over this year’s gardening achievements. What worked, what didn’t, and what could you do better next year?

Frost in Winter


Now is the time to retreat to a cosy nook, or settle down in front of a warm fire and armed with a laptop, seed catalogues, and pen and paper, start drawing up lists, and make seed orders for next year. Maybe think about re-designing your garden, building a greenhouse, or growing something new on the vegetable patch?

As the days get shorter, the temperature drops further. But remember, this month sees the shortest day of the year (Thursday 21st December), and after that, the days get longer, with the promise of spring on the horizon.


In the flower garden


If you haven’t done so already, there’s still time to move those pots and containers. If you don’t have a greenhouse, polytunnel, or shed, then group them together in a protected area of the garden. Also, try to keep them raised and off the frozen ground. If your containers are too heavy, think about wrapping horticultural fleece around your treasured shrub. Bubble plastic is another option, a wrapped potted plant won’t only benefit from the added warmth, but your expensive pot won’t crack from the frost.

Dahlia 'Karma Choc'Storing tubers

It’s not too late to lift and store dahlia tubers. By cutting the foliage to a couple of cms above the tuber, any foliage dieback won’t reach and damage the tuber. Before storing them in a cool, dark place, let them dry-out upside down for a few days in the greenhouse, to drain the last of the moisture. Brush off the excess dirt, and place them carefully into a protected box or crate. Sand or old newspaper makes good insulation, but ensure the tubers aren’t touching. Check them regularly for any sign of rot. Dispose of those accordingly.


As December rumbles on, you may want to consider pruning deciduous trees. With leaves now fallen the tree’s structure is clearly visible. Think about the three ‘Ds’: dead, damaged and diseased. Prune any branches that fall under these categories, but remember overall structure, and try not to prune too hard. As winter is a time of dormancy, many ‘sap’ based shrubs and trees, such as vines and acers, can also be pruned. It’s also time to start winter pruning wisteria. Ensure you cut summer side shoots back to no more than three buds.


New Chelsea roses 2017: 'Simple Yellow' (left), 'Margaret Greville' and 'Vanessa Bell'


Another plant that will benefit pruning now is bush roses. Bare root varieties can now be planted up. Ensure all climbing roses are sufficiently tied-back, as winter winds can cause damage. A fresh supply of mulch around your garden plants will help protect them from the cold.

Root cuttings

Consider taking root cuttings from herbaceous perennials. This will increase your flower border supplies, and save you the expense of having to buy new plants next season.

Leaf mould

Continue to keep borders and paths clear; debris and foliage can make paths slippery as well as harbouring slugs, snails and other pests. If you have the space, why not create a large bin for leaves to break down naturally.  Four posts, forming a square, pegged into the ground, and surrounded with chicken wire is an easy and cheap solution. Twelve months from now, you’ll be looking at a wonderfully rich leaf mould that can be spread across the garden.

Christmas trees

With the festive season upon us, like many, you’ll be considering buying a Christmas tree. With so many pine varieties to choose from, it’s worth thinking about a pine tree that can be planted after the festive period. The potted Christmas tree has been steadily increasing in demand as consumers have become more environmentally conscious. Ten years from now that small tree you bought could be happily maturing in your garden, giving you and your family, not to mention the garden wildlife, great pleasure.

Failing that, don’t be so quick to throw away your tree. It can be chopped up, and used as mulch for acidic plants, such as blueberries. The branches could also find use as support canes for growing peas on your allotment.

Christmas wreath

If you’ve been growing ivy or holly, then you might want to consider creating your very own Christmas wreath. By using cuttings of evergreen, or branches of crab apples, and pyracantha berries, this is the time to let your creativity go wild.

Garden wildlife

Ensure all bird-feeding stations are clean and replenished regularly. A fresh water supply will also help our feathered friends at this time of year. Check all water features, including ponds, don’t freeze over, as this can damage the structures as well as being harmful to the fish and garden wildlife.

Freezing temperatures

Keep an eye on the weather reports and overnight temperatures. If you have plants in the greenhouse, then a heater might make all the difference on a cold night. If there is a snowfall, ensure all snow is removed from the greenhouse exterior, as any plants growing in the greenhouse, will need all the warmth they can get. However, a warm greenhouse does increase the risk of pests and diseases, so regularly check all plants, pots and trays.


On the veg patch

Winter veg carrots

Winter veg

With the festive season upon us, it’s time for your winter veg to play their part on the Christmas day menu. Continue to check crops for pests and diseases, removing any fallen, yellowing or rotten foliage. The later you can leave digging up the veg, the fresher it’ll be on the big day. However, take into account the possibility of the ground being hard or frozen. If you haven’t started growing your veg yet, have a look at our range, which includes salsify, kale, squash, broccoli, cabbage and much more!

Primary cultivation

As winter veg gets dug up, and plots start becoming bare, remove old debris and add to the compost heap. If the ground’s not too hard, turn over the soil to expose dozing pests and to aerate the soil. If you can, spread a thick layer of compost, or well-rotted manure over the plot. If you have a compost heap, turn it over, as this will help it break down.

Bare root strawberriesFruit

If you’re growing currants or gooseberries, take hardwood cuttings. If you’ve been growing rhubarb for some years, dig up the crowns. Split them, top to bottom, with a spade, and then re-plant. If you’ve purchased new varieties, get them into the ground also. Remember, leave a newly planted crown untouched for a year, that way it can become established, and produce quality stalks.

This is a good time of the year to plant bare root fruit bushes and trees, such as gooseberry and currant bushes or apple, fig and cherry trees. Again, if you have established fruit trees, these can now be pruned. Think about the three ‘Ds’, as mentioned earlier. Check all staked fruit trees. If not securely tied-in, windrock can cause damage, and potentially kill the plant.

Winter salad

Winter salad

Continue to successional sow winter salads; check leaves for any slugs and pests. And if not grown in a greenhouse or polytunnel, ensure they are protected with a cold frame, cloche or horticultural fleece.

Prepping tools

If the weather has taken a turn for the worse, retreat to the potting shed. Once warm, set about cleaning and sharpening all hand tools. Service all power tools, including the lawn mower. Thoroughly clean all empty pots and trays, in hot water and diluted washing up liquid. Carrying out these tasks now will ensure your tools last for years to come.



Indoor plants

Add colour to the home with poinsettias, hyacinths or cyclamen persicum. However, keep watering to a minimum, and place them in a draught-free environment, out of direct sunlight.

Finally, rather than buying decorations from the shop, why not bring the outside in. Cuttings of evergreen, and sprigs of holly, can make excellent mantle and table displays. Of course, with mistletoe hanging from a doorway, it’s a great way to make friends and share the spirit of the season. And for the ones that simply can’t get enough of gardening, we have a little indoor option: the herb grow kit, which may be the perfect Christmas present for a loved one.