Pruning jasmine in late summer will ensure your plants bloom better than ever next year

Jasmine has long been celebrated for its intense and intoxicating aroma which, I think, is one of the ultimate flower garden scents. The utility of this fragrance was not lost on the Ancient Egyptians, who used the blooms to perfume bath water, or in ancient China, where the petals were used to add flavor to black tea. Even today, after thousands of years of use, it remains a scent of significance, with many food, drink and hygiene products enhanced by jasmine oil.

While I cannot claim to have mastered the art of essential oil extraction, enjoying the fragrance of climbing jasmine in garden borders and pot displays is good enough for me. I have grown different varieties of jasmine in gardens where I have worked across England and Wales, including pink jasmine, Jasminum polyanthum, and common jasmine, Jasminum officinale, both of which have remarkable fragrances.

Whether you grow jasmine in pots or the ground, caring for jasmine is relatively simple, but one important job to get right is pruning. Timing is critical, and pruning at the wrong time can damage your plant and reduce flowering the following year. Here, a gardening expert shares all the information you need to learn how to prune jasmine correctly.

How to prune jasmine climbers

Jasmine is often considered one of the best climbing plants, renowned for its long-lasting foliage and floral display. To ensure that your climbers continue to grow and produce as many flowers as possible, pruning at the right time is essential.

When to prune jasmine

'Jasmine plants are known for their moderate to fast growth rate, averaging about 12 to 24 inches of new growth each year,' says Mike Murphy, garden expert and owner at You Had Me At Gardening.

'Pruning should be done after the main flowering period in late summer to control size and shape, and to encourage bushy lateral growth,' Mike adds. 'By August and September, you will see many long, whip-like stems that can appear slightly messy. At this point, it is time to tidy your climber.'

When growing jasmine, remember that flowers bloom on the previous year's growth, so pruning in late summer gives your climber enough time to produce new stems that will harden off before winter. Future flowers will bloom on these stems that grow in late summer and early fall, so getting the timing right is vital.

The exact timing will depend on your local climate. For example, in northern regions, such as US hardiness zone 5, this will typically be in August, whereas in southern regions, such as US hardiness zone 9, this could be September or even October.

Mike Murphy

Mike is the owner of You Had Me At Gardening. He grew up gardening with his parents and grandparents. He enjoys his backyard orchard of dwarf fruit trees, raspberry and blackberry patches, and raised garden boxes. In addition to his perennials, Mike enjoys sprouting new fruit and vegetable seeds every spring.

How to prune jasmine

To begin with, take a step back and inspect the shape of your jasmine. It is always best to prune with intention, so decide the desired shape and scale for your jasmine before you reach for the pruners.

'Firstly, remove dead or damaged stems,' Mike continues, 'which will help to maintain a healthy plant with a natural form.' It is then a good idea to 'prune long stems down to a few feet, cutting just above a leaf node.'

In some instances, you might want your jasmine to climb up high, but if you are like me and prefer to be able to smell jasmine at ground level, keeping it growing lower down is optimal. If you grow your jasmine along a fence or garden wall, prune your jasmine so that it is contained and compact. You do not have to worry about cutting back too hard, so long as you prune above a leaf node, you will see fresh new shoots in the coming weeks.

'After pruning, it is a good idea to support your climbing plants,' Mike continues. 'These vines will benefit from support, so installing a trellis or wire framework against the wall or structure is recommended if you have not already got one.

'As your plant grows over the late summer period, gently tie new growth to provide support using soft ties. Avoid tying too tightly to allow for natural movement and prevent damage to the stems.' Reusable plant ties are available from Amazon.

FAQs

Is it a good idea to fertilize jasmine plants after pruning?

If you have been feeding your plants during spring and summer, they should have all the nutrients and goodness they need to produce new growth. I would not recommend fertilizing jasmine once you have pruned in the latter months of the growing season. It is best to wait and feed your plants the following spring.

Pruning your jasmine plants during late summer will help them produce a bounty of star-like, aromatic blooms next year. For more scented plant inspiration, see our guide on how to grow winter jasmine, for a fragrant plant that will add impact to your yard during the cold months of the year.