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Pruning

When to Prune Shrubs - Pruning Calendar for shrubs.

Buddleja hard pruned in spring - ready to send a lot of new growth and large flowers.

The shrubs mentioned in this calendar for pruning do NOT HAVE TO BE PRUNED in many instances. These are simply optimum times if you so wish. For instance, some of the evergreens are best pruned back by mid summer in order that they gain sufficient 'hardy;' growth before the onset of the following winter..You will soon be aware of why 'when to prune shrubs' is as important as 'how to prune shrubs'

Pruning is necessary for some shrubs - not because they actually need it, but more because we have either planted them in the wrong place, or they are simply not conforming to what we think they should look like.

There are many other shrubs that simply need pruning to do their best for us - whether new lush foliage, stems or flowers. The downfall of pruning in many cases - certainly as our mailbox suggests - is that many shrubs are pruned at the wrong time.

This results in either cutting off the flower buds for the season - hence no flowers for a year; cutting off the stems in autumn which would normally give us a great display through the winter; or even pruning some types of shrubs/trees at the wrong time of year, which then allows fungal spores to enter!

Buddleja Pruned Hard in Spring seasonWhen to prune your Shrubs - Calendar Of Pruning For Shrubs and Hardy Plants.

One of the problems of writing a Calendar of Shrub Pruning, is the fact that every year brings seasons which are either earlier or later than usual - particularly spring and autumn, and of course, being a world wide website, there will be different hardiness zones in different countries, together with different general climatic conditions which will also affect the optimal timing of any pruning for some types of shrubs. This can affect the time when you prune your shrubs. You will have to gain knowledge about your own particular time zone to know this.

The basis of our calendar, is that of minimum average temperature of approximately -7deg. This corresponds to most areas within the UK. It is roughly equivalent to Group 8B on the USDA Hardiness Zones Table. As with all things in life, times change. So do temperatures - regardless of your feeling about global warming.

The calendar below will be added to.

January - February Pruning

February - March Pruning

March - April Pruning

April - May

May - June

June - July

Pruning at this time of year is normally confined to shrubs that flower on growths that were produced in the previous year. Therefore by pruning now, you are giving the plant time to produce new growth this year, which will also bear the flower buds for next year. Leave it too late, and there will be no time for the shrub to produce next year's flower buds. For this group of shrubs - prune immediately after flowering.

However, there are also several evergreens that can be pruned at this time - if they are simply being grown for foliage effect.

July - August

August - September

September - October

October - November

November - December

December - January

 

 

By David Hughes - info@gardenseeker.com 


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