Five top tips for your dahlias this autumn

Find out more below about caring for your dahlias, with some help from our friends at BBC Gardeners’ World Magazine.

Discover how to grow dahlias from our previous blog here.

Tip 1: Extend blooming

To enjoy dahlias’ vibrant blooms into October and beyond, practice regular deadheading and feeding throughout the autumn months. This will encourage continued flowering until the first frosts arrive.


Tip 2: Frost protection

Once frost hits, it’s crucial to protect your dahlias. After the foliage has blackened, cut the stems back to about 12cm. Gently lift the tuber from the ground with a garden fork, removing soil with your fingers. Place the tubers upside down on a newspaper-lined tray to dry out for a couple of weeks in a dry, cool location.


Tip 3: Proper storage

After drying, store the dahlias in a cool, frost-free place. Use a shallow tray filled with dry compost or horticultural sand. It’s essential not to water them during this period. Dahlias do not require light, so a dark garage or cellar is an ideal storage space. Keep them here until it’s time to repot them in late March or early spring.  


Tip 4: Frost-prone areas

In regions with severe frost or excessive winter moisture, dahlias may not survive in the garden. It’s best to lift and store tubers as mentioned above. However, if you’re in a mild area with well-drained soil, consider covering the soil around the tubers with a thick layer of mushroom compost and straw. This protective layer will insulate the tubers from frost damage. In spring, simply remove the excess compost to reveal your dahlias.


Tip 5: Care for limited space

If you lack space for lifting and storing dahlia tubers, you can cover the soil with a generous layer of mushroom compost and straw to shield them from frost. This technique is especially useful in milder climates. When spring arrives, rake away the excess compost to allow your dahlias to flourish once again.


Take a look at the gallery below for inspiration from dahlias that bloomed at BBC Gardeners’ World Live 2023 to see just some of the varieties of dahlias you could grow in your own garden.

New year, new garden, new trends!

We’re through the garden gate into 2023, with a host of gardening trends blooming throughout the country. From house plants reaching dizzying heights of popularity, to the colour of the year ‘Viva Magenta’, read on for our full list of trends.

To get up close and personal with fresh garden inspiration, new plants, the latest gardening kit and more, join us in 2023.

Colour of the Year 2023

Hand-picked by Pantone, the colour of the year has been named as ‘Viva Magenta. 

Pantone describe the colour as ‘brave and fearless, and a pulsating colour whose exuberance promotes a joyous and optimistic celebration, writing a new narrative.’

Discover a world of colour and scent in the stunning Floral Marquee,  bursting with award-winning nurseries and display.

Sustainable gardening

Whilst your garden might seem to already be very green, it can always be greener!

Discover ways you can make gardening more sustainable, like upcycling common items to make stylish features. What was a pallet, hessian bags, bits of pipe, and tin cans, could become a planter, grow bags, water features, and wildlife habitats.

Be inspired by the BBC Gardeners’ World Magazine editorial team as they’re joined by experts to give tips and advice.

Grow your own food

Looking to go from soil to supper this year? Get brilliant advice from the National Allotment Society at the event.

Peat-free gardening

Learn about the latest peat-free compost from exhibitors who can offer face-to-face advice.

Indoor gardening

Foliage doesn’t just belong outside – bring nature indoors and be inspired by the Houseplant Hub.

Mindful gardening

Beautiful Borders returns with this year’s theme ‘My Garden Escape’ to give you space savvy ideas.

Gardening on a budget

Discover different ways you can let your garden bloom under a tighter budget, with advice from expert gardeners.

Fermented foods

Visit the BBC Good Food Summer Show (with free entry with your ticket!) and discover the latest foodie trends.

Feeling inspired? Find out what else is happening at BBC Gardeners’ World Live this June!