Although the weather is feeling decidedly chilly for the time of the year, during May the threat of frost will pass and, with spring well under way, David Coton is in no doubt that this is going to be a busy month in the garden.
Pruning involves the selective removal of a branches from a tree or plant to improve its health and shape, encouraging it to grow, flower and fruit. Many gardeners find pruning baffling, so here's an overview by David Hall of a subject that can get over complicated.
Pruning includes jobs as large as cutting off tree limbs to deadheading flowers, some plants will thrive with only limited pruning while others need hard pruning. All we are doing is accelerating a natural process.
When pruning we also have to bear in mind that the result needs to be attractive, i.e. the gardener needs to balance appearance with keeping the plant vigorous.
Shrubs need to be a well balanced and shaped, with sturdy new shoots replacing old ones.
Although initial pruning may be little more than cosmetic, eliminating crossing or weak shoots, before starting serious pruning you need to understand the plant's flowering habit and growth pattern.
Naturally you are reluctant to remove healthy growth, however in the long term most trees will benefit from early training and pruning to create a strong framework of branches, especially if they are grown formally.
Disease and pests usually see their chance to strike when a plant is in poor condition, so it's important to prune out all damaged, dead and diseased wood, the '3 D's' as the RHS book calls them.
Cut back to healthy wood, preferably a growth bud, from where replacement shoots can grow.
Clearing out the centre of a tree to rid it of weak shoots is important to increase air circulation and allow healthy ones to develop unhindered.
Awkwardly placed shoots may upset the symmetry of many shrubs and trees, these should be cut out. Sometimes plants become unbalanced due to one portion growing faster than the remainder, in this case lightly prune strong shoots but cut weak shoots back hard.
Always remember the mantra 'weak growth, hard prune, strong growth, light prune.'
As I've already mentioned, knowing fruiting and flowering characteristics is vitally important, whether it takes place on the current year's shoots or on ones that are more than a year old. This clearly governs if and how often you prune.
Knowledge of the plant's life cycle will also determine when to prune, generally pruning should allow the maximum growing period to produce flowering shoots or growth that will flower during the following season.
Once you understand the importance of pruning and why it is vital for healthy growth, you can go on to discover its intricacies, and that might take a lifetime!
If you're interested in carrying out your own Autumn pruning then you can visit our plant care products page.
Timber garden decking never seems to lose its popularity, and why should it, when it's such a useful way of extending your living and entertaining space. Andy Taylor explains why decking is so easy to install and how best to look after it.
You can create the spookiest Halloween Party in town with a spine chilling cast of para-normal misfits including ghosts, ghouls, zombies, vampires and many other sinister characters who inhabit the dark side. David Coton tells you how to transform your home and garden into a thoroughly scary experience.
In October, David Coton is getting the garden prepared for the onset of colder weather but, at the same time, the arrival of spring bulbs in the garden centre is a reminder that you should also now be planning ahead for next year.
GardenSite have secured the final delivery of Henri Studio cast stone garden ornaments to be distributed through Kelkay. We will be looking at ways of continuing to supply this popular range but at the moment we have only a limited amount of stock.