1 tuber 229254-1 £3.95
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3 tubers 229254-3 £7.95
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1 x 3 litre pot 229254-3L £10.50 Delivery mid June
When in stock, please allow up to 4-6 weeks for despatch. For fruit & veg bare roots/crowns or potatoes, please allow up to 2 weeks for despatch.
More Details

A rich purple heart with a white halo surround - elegant, beautiful and excellent for mixing with whites.

This can be gift wrapped in our exclusive hessian sack, with ribbon and a Sarah Raven gift card. You will be able to add this to your basket once you begin the checkout process. To add a gift message to your order, simply fill out the details at the delivery stage of the checkout.

Please note: only items which are showing ‘in stock’ can be gift wrapped.

Genus Dahlia
Group/Species Decorative Group

Broad and flat petals, normally bluntly pointed, with no central disc showing. Click here for more information about dahlia groups.

Variety Edge of Joy
Type Tender Perennial
Common Name Dahlia
Border Position Cutting Garden
Bulb Size I
Soil Type Broad Tolerance
Scent Unscented
Site Full Sun
Moisture Moist but Well-drained
Height 90cm (36in)
Spacing 75cm (30in)
Sowing, Seeds, Planting Plant just under the soil surface after the last frosts. Alternativley pot them up undercover March or early April in a generous pot (at least 2 litre) filled with multi-purpose potting compost. Place them in a light, frost-free place and keep the compost moist. Pinch out their growing tips when they have reached about 8" tall. They will have formed bushy plants by the time the frosts have ended and will be in flower by the beginning of July. If you don’t have anywhere to grow the potted tubers, you can put them straight into the ground when the frosts are nearly over, mulching them or protecting with a cloche or protective horticultural fleece if the foliage appears before the frosts are over, but this will delay flowering.
Care Tips Support with a stout stick, tie in every couple of weeks. In the south you can mulch deeply and overwinter them in the ground, alternatively, lift and overwinter your dahlias frost free undercover.
Flowering July - November
Vase Life Only pick dahlias in full flower. Recut the hollow stem ends under water to avoid airlocks.
Cooking Notes All dahlia flowers are edible. I use the petals scattered over salad and to decorate a range of puddings.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Sow Under Cover/Plant Indoors
  • Direct Sow/Plant Outdoors
  • Flowers/Harvest
Advice & Videos
Understanding dahlia groups

A list of the different dahlia groups, along with some classification info and an example of a variety in each group.

History of the dahlia

First discovered by Aztec Indians and used for food and medicine, this tuber has an interesting history of cultivation.

How to plant and grow dahlia tubers

Discover how to grow strong, healthy dahlias – how to plant, look after and overwinter them, and what to do with your bulbs when they arrive.

How to overwinter dahlia tubers

Sarah discusses the best options for overwintering dahlias – lifting or mulching.

Sublime dark dahlia flower arrangement

Sarah shows you how to make a gorgeous large arrangement of dahlias.

Planting narcissi bulbs with dahlias

Have a beautiful display of flowers in your garden from March to the first frosts with this simple planting technique.

New favourite dahlia arrangement

Sarah shows you how to make a quick arrangement of colourful dahlias.

Growing dahlias in pots

Sarah shows you her favourite dahlia varieties for pots, and gives you some tips on how to grow them successfully.

How to take dahlia cuttings

Watch and learn how to take dahlia cuttings – turn 1 tuber into 10.


Bulb Delivery - When in stock, please allow up to 5 days for despatch.

Plant Delivery - When in stock, please allow up to 4-6 weeks for despatch. For fruit & veg bare roots/crowns or potatoes, please allow up to 2 weeks for despatch.

Click here to find out more information about our delivery rates and times.

Dahlia 'Edge of Joy' reviews

* * * * - Average based on 18 reviews

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Reviewed 19th April 2020 by Valerie

Only one tuber has grown and is just starting to produce buds.

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Reviewed 11th August 2019 by Mary

Failed to grow despite perfect growing conditions that suited other varieties which have grown well

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Reviewed 5th August 2019 by Bob

I first bought Edge of Joy from you in 2016. By 2017 they were dead! However I did manage to find a beautiful sport on one tuber, this I have been propagating and have quite a few plants this year. I intend to register a name for the plant and hope to find a grower to trial it next summer.
This year I bought two tubers of Edge of Joy as I need these to stand at a trial. Sadly the plants are growing but the flowers are very disappointing - small and mainly white.

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Reviewed 5th August 2019 by Sue

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Reviewed 4th August 2019 by Duncan

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Reviewed 2nd August 2019 by Valerie

Only one tuber has grown and is just starting to produce buds.

* * * * -

Reviewed 1st August 2019 by Jennifer

The service was good.
The dahlia was slow to flower but now looks good.

* * * * *

Reviewed 31st July 2019 by Alison

Wonderful plant, lots of buds, has been blooming all summer. Beautiful and unusual flowers, the bees love them.

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Reviewed 31st July 2019 by Daniel

Very large and strong tubers ,have grown strongly with lots of flower heads/buds . Also great advice from the planting guides included. Would highly recommend :)

* * * * *

Reviewed 31st July 2019 by Maura

Lovely strong plants. Well packed on their arrival. Superb blooms. Excellent value. Other than that I can't think why I've given them 5 stars !

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Reviewed 31st July 2019 by Angie

Excellent thanks good dahlia

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Reviewed 31st July 2019 by Tony

Very good quality tubers that have grown into very healthy plants that are just about to flower

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Reviewed 31st July 2019 by Joanne

Good size tuber that was grown on in a pot in my cold greenhouse. Planted out at the end of May and is just coming up to flower. Strong plant with several stems.

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Reviewed 31st July 2019 by Bernard

Some of the Tubers were in a poor state and some that have been planted did not throw any shoots.

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Reviewed 31st July 2019 by Elizabeth

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Reviewed 31st July 2019 by Tim

Doing well. Lovely flowers

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Reviewed 31st July 2019 by Elizabeth

Perfect service good quality produce.

Very poor

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Reviewed 5th July 2018 by Tracey Smith

This is the third dahlia tuber purchased from Sarah Raven which has not taken. I bought 2 tubers a couple of years ago, both of which failed and this is the same. Not one single leaf. Other dahlia tubers purchased elsewhere are flowering well so it is not the way I grow them. Very disappointed as this looked a beautiful plant and the dahlia tubers from Sarah Raven are not cheap. I won't be buying any more dahlias from this company, which is a shame because their young plants are usually excellent.

Reply from the Sarah Raven Team:

"Thank you for taking time to review our site. We are very sorry to hear that your tuber failed to shoot. Please do contact our customer service team at info@sarahraven.com or by calling 0345 092 0283 and our team will assist you further and arrange for you to be refunded for the failed tuber.
Kind Regards, The Sarah Raven Team


Posted 12th July 2018