Winter Pruning of Limes, Hazels & Dogwoods

Posted on January 14, 2023 by johnshortlandwriter

Hard pruning takes courage and gardeners are often reluctant to carry it out for fear of harming or, even worse, killing the plant. Once it is understood that more trees and shrubs are lost through neglect than by pruning the task becomes somewhat easier. In far too many gardens woody plants are grubbed out because they have outgrown their allotted space when judicious pruning at an earlier stage of their life would have allowed them to thrive and give pleasure for many more years.

*Outgrown its space? Don’t remove it, prune it!*

January and February are the perfect months for carrying out coppicing and pollarding and some shrubs like willow and dogwoods, grown for the winter colour of their bark, are actually improved by the process. Coppicing and pollarding are traditional techniques that have been carried out for centuries in woods and forests to provide a plentiful supply of fuel and fencing materials. As with all procedures, jargon evolves and coppicing and pollarding are just words that describe the removal of branches back to the tree trunk (coppicing) or, in the case of pollarding, the removal of stems to ground level. Somehow, if you just say to yourself, “cut off every branch” the mystery of the process disappears and becomes less intimidating.

*Willows – some newly pollarded line a riverbank*

Limes (Tilia) are very beautiful when grown as full-sized trees but become far too large for most gardens. They are better planted as parkland trees in a field, if you are lucky enough to own one, where there stature and grace can be appreciated from a distance. Too often they are grown where their branches overhang driveways where they drop their sticky honeydew over vehicles and become a nuisance. Most limes are host to tens of thousands of aphids (greenfly) which feed on its sap and then secrete the unwanted waste. Somehow, the gardener’s jargon word ‘honeydew’ sounds so much nicer than ‘greenfly crap!’ If you are determined to plant a lime tree in a confined space the Caucasian Lime, Tilia x euchlora which doesn’t have this problem is the one to go for. Remember that any tree in a confined space will need its size controlled so read on to find out how to pollard it.

*Limes, when mature, are beautiful but very large trees*

The time to pollard a tree is winter and January, when there isn’t too much to do gardening-wise, is the perfect month. I always aim to complete by the 31st which allows time to continue into February, if need be. By the middle of that month the sap will be starting to rise within the tree so it is sensible to complete the task by then. It is very straightforward to remove the branches for which you will need secateurs for smaller twigs, loppers for larger ones and a sharp pruning saw for anything bigger still. Which tool to use when? That too is easy to know. Secateurs and loppers should cut through the stems easily – if you need to twist the tool or the stem, you should be using the saw.

*By midsummer there is plenty of new growth on this old willow pollard*

Common sense will tell you that if you remove all branches from a tree there will be nothing left to offer any screening. This isn’t always important and coppiced trees send out new growth very rapidly as the weather warms up. However, for privacy or a different ornamental effect more careful pruning is required. All that needs to be done is to cut back any branch or twig that has grown beyond the space you have allocated for it.

*A pollarded lime allee provides drama and a focal point*

*This lime allee has had its side branches retained to give denser summer screening*

Limes are not often grown for the colour of their winter twigs probably as they are up rather high and so less noticeable. Willows (Salix) (when coppiced, for they can also be pollarded) and dogwoods (Cornus) are very different for their bright yellow, orange or scarlet stems are very visible and a mainstay for any winter garden. They are also quite simple to prune as it is all carried out at ground level. When the plants are mature, I prefer to cut them over a three year period as this retains their overall height. Quite simply, it means that only a third of the stems are removed or, if you have plenty of shrubs, completely prune one in every three to their base. The purpose behind this pruning is not so much to control their size but to maintain the strength of colour which is at its best on younger shoots. If left, they gradually become quite dull.

Hazels are treated very much like willows and dogwoods, although the usual purpose is purely to maintain a convenient size or to provide ‘pea sticks’ to be used for supporting summer plants as well as peas and beans. For guidance take a look at my earlier post from 2021 which can be read by clicking on the link here.

*A hazel tunnel is created by partial coppicing to reduce the number of tall stems*

Coppicing Hazel – the how, the why, the where

Posted on February 18, 2021 by johnshortlandwriter

Lamb’s Tails (as country children call them), the pale-yellow catkins of the hazel, are a familiar sight at this time of year. A traditional component of our hedgerows, they are perhaps seen in more glory when growing unchecked along roadside verges where they can achieve a much greater height. There, up to 15 metres tall in favoured conditions, the soft golden shimmer of hundreds of catkins really is one of the earliest harbingers of spring.

*Lamb’s tails: their pollen is released by the wind*

Catkins begin to form early in the winter, small, stubby and dull in colour where they wait until, quite suddenly, they are as we see them now. The transition always goes unnoticed. Even less noticed are the female flowers – for catkins are male. Whereas the majority of plants are self-fertile, Hazel, Corylus avellana, is one of a number that carry both male and female flowers. Wind-pollinated, the breeze carries the pollen from the male to the female to fertilise. However, the pollen has to reach a different plant for it to be successful. The tiny, female flowers can be discovered by careful searching along the branches a few days after the catkins have fully formed.

*The short, stubby embryo catkins form* in early winter

The minute, female flowers take a bit of finding…

For gardeners, hazel is one of the most traditional and useful of plants and it is worth growing one or two in an odd corner if you have the room. There they will quickly create a multi-stemmed shrub. Visually, as a garden plant, when left to its own devices, it is of limited value (wildlife love it, of course). However, by coppicing the plant there will be a regular supply of poles for runner beans to climb and the twiggy top-growth is the perfect support for garden peas, mange-tout and the headily-scented sweet peas. They are also useful for supporting taller herbaceous plants, saving them from collapse and look so much more attractive than canes and string or wire netting. It’s far quicker to do, too!

So, what is coppicing and how do you do it? Well, for a start, it’s a dead easy and very uncomplicated form of pruning! All that has to be done is to cut with secateurs or garden loppers the stems to a few inches above ground level during the winter. If you do this over three years by removing only a third of the stems each year you will have stems of varying heights and diameters without losing any screening effect. Although coppicing may seem a drastic form of pruning they quickly regrow and it also prolongs the life of the plant considerably.

*Coppiced hazel can make a good summer screen in the garden*

Many years ago, coppicing of hazel (and, sometimes, ash and field maple too) was standard practice in many of our woodlands. These days it is still carried out as a conservation tool to encourage the breeding of our now endangered dormouse and other wildlife. Hazel is the food plant of many moths and the autumn supply of nuts are great favourites with jays, squirrels and wood mice – and, of course, humans. In the photo below of long-neglected woodland, the hazel is naturally regenerating as coppice as the old and heavy branches collapse onto the forest floor.

*Neglected storm-damaged hazel naturally regenerating as coppice*

Hazel can be useful, along with willow, to create living structures such as pergolas, arches, fencing and tunnels. They all involve regular pruning in much the same way as coppicing although in most instances the number of upright growths is reduced to one or two. The prunings make excellent kindling for wood burners and, if you’re feeling really creative, rustic furniture. Why not have a go? From just one native species we can have fun projects that are ideal for people of all ages. It can be used as an educational tool too: nature study and conservation, rural history and artistry make it the perfect resource for lockdown and home learning.

*This living hazel tunnel* *makes a fine garden feature and is also good for wildlife*

*An imaginative and practical way of using* *hazel branche*s

Discovering the Five Senses in Lockdown

Posted on April 19, 2020 by johnshortlandwriter

It sometimes takes a crisis to make us re-evaluate what is of importance in our lives and the present one of Coronavirus/Corvid-19 surely has to be the greatest that we will collectively face. Now, several weeks into lockdown we have all been developing new patterns to our daily regime, one of which may well be taking more exercise. Never before have we placed so much value on fresh air and being able to walk freely whether it be in our parks, gardens or open countryside.

Riverside path, Higginson Park, Marlow (before social distancing). The river is the River Thames in Buckinghamshire

Living where I do in the Cotswolds surrounded by fields and with woodlands and the river close by it is relatively easy for me to enjoy the open space. For others able to take advantage of their enforced free time, it may involve a longer walk and I have certainly noticed an increase in the numbers of walkers and cyclists here in the valley. I have also noticed that for many of them one aspect of their lives hasn’t changed: as they walk their eyes are glued to the screen of their mobiles and headphones are clamped to their ears, seemingly unaware of their surroundings. It has made me think all the more of our five senses and how we use (or should use) each one of them when out exercising.

Cycling in the Chiltern Hills

SIGHT For those of us blessed with the gift of vision, perhaps sight is the most important sense we use and perhaps the one we most take for granted. Without it, it is still possible to enjoy one’s surroundings for the other senses become heightened but I doubt if anyone would deny the pleasure of seeing the beauty that surrounds us on our daily walks. Even within cities there is much nature to be enjoyed although I admit that sometimes it has to be sought with more vigour and awareness.

Look everywhere – self-sown violas peep out from overhead guttering!

At this time of year, more than any other season, there is much to see. Tight leaf buds unfurl into an explosion of vivid green foliage, iridescent wherever sunlight filters through; young ducklings tumbling into the park pond to take their first swim. But it isn’t just the natural world to be seen anew, there are other things too. Although it had been there for more than a hundred and forty years (and I’d walked past it very day for twenty) the date scratched into the stone on this wall had gone unnoticed.

Who scratched this date into the old stone wall and why?

HEARING Along with sight the second most important sense we use on our daily amble. Apart from the glory of birdsong there are other sounds that bombard us when out walking. The wind flurry that makes the catkins tremble and shed their pollen, the stronger breeze that make the twigs and branches clatter gently against one another. Then there’s the rustle in the undergrowth. Stop and wait silently and with patience you may be rewarded by the sight of a little field mouse going about its daily chores or a rabbit venturing out to feed.

patience was rewarded when this little field mouse ventured into the open

… and also this rabbit

The sound of the river alters constantly. The smooth, barely audible glide of the water changes to a tinkling of soft musical sounds, its flow interrupted by a fallen branch. A few yards further downstream they rise to a crescendo as they crash and tumble over the old millrace before returning to silence as the flow stills in the calm of the millpond.

The old millrace

the calm of the millpond

TOUCH In the present crisis we are sensibly being discouraged from touching things unnecessarily. Out on walks perhaps care may be advisable when opening gates or climbing stiles but, if you do, take a moment to think about what you feel. Heed the cold steel of the metal five-bar gate and the way it slowly warms beneath your hand; feel the rough timbers of a stile worn smooth from much use over the years. Of less concern health-wise – and all the more pleasurable for that – become aware of the softness of new horse chestnut leaves; later in the year they will become as harsh as sandpaper. Run your fingers across the twisted, grooved bark of the sweet chestnut tree and stroke the furry softness of the aptly named ‘Lamb’s Ears’, the favourite garden herbaceous plant Stachys byzantina.

The deeply grooved bark of the Sweet Chestnut tree

Stachys byzantina Lamb’s Ears

SMELL The scent of spring is everywhere at the moment and to be delighted in. However, the sense of smell is also a powerful trigger of long-forgotten memories. In a few weeks’ time the sweet scent of drying hay in the meadows may recall childhood farm holidays but for now there is the unique smell of new-mown lawns. Both start off as freshly cut grass yet their scent is so surprisingly different. Likewise, compare the subtly differing fragrance of apple and cherry blossom, both in their full-blown glory right now.

Drying hay before baling

The smell of freshly-mown grass…

Without even leaving home, squeeze the leaves of the herbs on the kitchen sill and notice their variation in scent, their colours and textures too. Early morn in the woodland, especially after warm rain, the delicate perfume of bluebells quickly disappears as the sun becomes stronger. Half-close your eyes and glory in their colour, in the silence and in their perfume and leave all cares behind you – if only for a while.

discover the different textures & scents of herbs

The vivid greens & blues of an English beechwood in spring

In town, the scents are also there just waiting to be noticed. Rain falling on roads and pavements or scorched by hot sun both produce delightfully tarry smells, one mild, the other strong. In the formal beds of the local park flowering bulbs stand in regimental rows; each have a unique scent which rises in the air to mingle with the vanilla fragrance of wallflowers. The wallflowers, their dull green foliage barely noticeable throughout the winter, now shout out the arrival of spring through the colours of their flowers of brick red, orange and yellow.

Tulips & wallflowers – a favourite park bedding combination

TASTE In shaded places where the soil stays moist you may be greeted – even before you arrive – by the pungent scent of wild garlic. A prolific carpeter of the woodland floor its leaves and flowers make a useful ingredient to spring salads. Wild garlic or Ramsons to give it it’s country name, is fickle where it will grow. In some places that would seem suitable, not a single plant can be found. A less common member of the onion family to be found in the wild are the chives of our gardens, they grow along road edges and field boundaries locally. It is thought that they were spread by the old drovers of centuries ago so that they could harvest them along the way to liven up a bland meal. There is no doubting its identification, disturb the tubular green leaves and the familiar scent is immediately released.

Ramsons grow in damp, shaded places

It is not only the onion family that can be nibbled en route. Richard Mabey in his book Food for Free, published many years before foraging became a ‘craze’, suggests nibbling on the half-open buds of hawthorn. Many a country child has done so over countless generations and perhaps that is how they got their old name of Bread and Cheese. To me, they only have a slightly nutty taste and texture.

Hawthorn leaf buds are not really worth eating!

As a boy, brought up close to the River Thames, the hollow stems of the common reed were a regular source of pleasure for the soft pithy centre could be drawn out by pulling the stems through clenched teeth. Close to my present home there is also a small reedbed. These tall reeds have something to offer every one of the other senses too: sight – the pleasure of watching petrol-blue damsel-flies sunbathing on the stems; hearing – as they sway and rustle with the slightest breeze; touch – the coarseness of the leaves, a contrast to their smooth stems; smell – those of the river as it seeps around the roots, a heady mix of wet mud and wet greenery.

Only the male of the Beautiful Demoiselle damsel-fly has petrol-blue wings & body

So, within the bounds and restraints of the Covid-19 advice when out on your daily exercise, remove the earphones, place the phone in your pocket and use, really use, every one of your senses. Not only will you notice more, you will wonder how you never managed to notice them before. Stay safe, stay alert and take this unique opportunity to discover a new world on your doorstep.

Finally, one word of warning. Only try tasting wild plants if you are confident they have been identified correctly. If you decide to forage, do so responsibly and only pick a few leaves at a time. Make sure that all plants for consumption are free of pesticides and other contaminants, especially those growing in or near water.