Plants every gardener should move now for more 'vigorous growth' according to Monty Don

Certain plants will grow with more vigour next spring if moved to a sunnier location in the garden, according to Monty Don.

The expert says plants that benefit the most from being relocated in September are herbaceous perennials.

Monty Don explained: “September is a good month for moving herbaceous perennials.

“By doing this when they are in full flower you can see clearly how they look in their new position and how they relate to the other planting around them.

“It also means that the roots will continue to grow and become established by winter so that next spring they will grow with extra vigour.

“Also climate change means that spring is often dry and this can be damaging for newly planted or moved plants.

“Having moved them, it is a good idea to cut them back so that the plant has a rest and can recover from the trauma of being uprooted.”

According to Britannica, herbaceous perennials are those that die down to the ground every year, but whose roots remain alive and send up new top growth the following spring.

The term perennial simply denotes that the plant will live for more than two years, while herbaceous means the plant does not have woody stems.

The Royal Horticultural Society stated: “Dividing perennials regularly will ensure healthy, vigorous plants that will continue to perform year after year.

“It also offers the opportunity to multiply your plants.”

While Monty recommends moving the plants while they're in full bloom, some gardeners typically wait until the spring or autumn to move their plants.

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This is when roots are more likely to re-establish in the ground before pushing out more leaves and flowers.

It is equally important to remember that some plants sulk when introduced to a new location in the garden.

Experts at Richard Jackson Garden say it is "important to remember that generally, plants lose about half of their root system when being moved".

"That means you need to keep an eye on them and if it doesn't rain, you need to water them," they add.