It's the summer of dahlias

Summer wouldn’t be the same without dahlias. We’ve put some tips together from our friends at BBC Gardeners’ World Magazine so that you can grow beautiful pops of colour in your garden, with some dahlia garden inspiration from our previous shows.

Dahlias come in many shapes and sizes and make beautiful additions of colour to the garden, whether in bedding, pots, or as cut flowers for indoors. Remember, the more you cut them, the more flowers they produce.

How to grow

  • Plant dahlias in fertile, moist soil that is well-drained
  • Place in a sunny, sheltered spot
  • If growing from tubers, pot them up individually with the new shoot facing upwards and position it so it sits just below the soil surface. Water well.
  • Keep tubers in a frost-free place and keep the compost moist. New shoots should appear five weeks after plants. Plant out in the garden in May when no more frosts are forecasted. 
Dahlia Melody Allegro


  • When planting out your tubers, you might need to remove some shoots. Leave about five remaining to encourage lots of flowers.
  • Before planting outside, harden off the plants by putting them outside during the day and bringing them in at night for about a week.
  • Grow your plants around 60cm apart, in holes around 30cm across.
  • If planting in a pot, use containers 30cm wide and deep.


  • When the plant is 20cm tall, encourage flowering side shoots by pinching out the main growing tip. Cut the main shoot down to the top pair of leaves. 
  • Deadhead to prolong flowering. 
  • For cut flowers, cut the flowers when they are fully open.


  • Dahlia tubers can be divided in spring – press the tubers down onto a tray of shallow compost and leave them to start growth in a sunny room. Once shoots begin to grow, divide them using a knife so each section has at least one shoot and set of roots. 
  • Pot on the divisions.

Take a look at the gallery below 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!