1 tuber 229350-1 £3.95 Delivery late February
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When in stock, please allow up to 1 week for delivery.
3 tubers 229350-3 £7.95 Delivery late February
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When in stock, please allow up to 1 week for delivery.
1 x 3 litre plant 229350-3L £9.95 Delivery mid May
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When in stock, please allow up to 1 week for delivery.

Or buy this as part of our Rubens Dahlia Collection and Rajasthan Dahlia Collection.

More Details

If I was asked to select a dahlia which looked most like a peony, it would be 'Islander', with vast, curvaceous, luscious blooms. I absolutely love it.

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 Islander
Type Tender Perennial Tuber
Common Name Dahlia
Border Position Container, Middle
Bulb Size I
Soil Type Acid, Alkaline, Chalky, Clay, Fertile, Neutral, Sandy
Scent Unscented
Site Full Sun
Moisture Moist but Well-drained
Height 1.5m (4ft 11in)
Spacing Plant just under the soil surface, 75cm (30in) apart.
Sowing, Seeds, Planting 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.
Harvesting Flower production 5 months
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
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.

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.

Planting up your dahlia tubers

In this video Sarah shows you how to plant up your dahlia tubers.

How to plant and grow dahlia tubers

Find out how to grow strong, healthy dahlias this spring – how to plant, look after and overwinter them, and what to do with your bulbs when...

Delivery

Bulb Delivery - When in stock, please allow up to 1 week for delivery.

Plant Delivery - When in stock, please allow up to 1 week for delivery.

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

Dahlia 'Islander' reviews

* * * * - Average based on 16 reviews

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Reviewed 21st August 2019 by Sarah

I bought this one for my mum's garden and it seems to be doing well although it's not flowered yet but I think it will soon.

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Reviewed 20th August 2019 by Sarah

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Reviewed 16th August 2019 by Mrs Lycett

Yes, the colours of both dahlias was not what I thought theg would e. Especially the Islander. The Bishop of Canterbury also was a bit disappointing although nice and bright

Reply from the Sarah Raven Team:

"Thank you for your review. We are sorry to hear of your disappointment with your dahlias and have refunded you for them."

Posted 17th August 2019

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Reviewed 12th August 2019 by Frances

Flowers very large but fun

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Reviewed 3rd August 2019 by Graham

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Reviewed 1st August 2019 by Michelle

I have tended these tubers lovingly,following Sarah Raven’s instructions,they have been really hard work and very expensive for the end result! I,so far,at the beginning of August have no buds on them and hence had no flowers at all and am not convinced I am going to get any. I’m so disappointed and not sure I would buy them again. If it had been something else I’d purchased I would have asked for a refund,but a bit difficult when you have to wait for something to grow from a tuber or seed! Very expensive purchase and postage for no flowers!

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Reviewed 31st July 2019 by Jane

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Reviewed 31st July 2019 by Mrs Lycett

Yes, the colours of both dahlias was not what I thought theg would e. Especially the Islander. The Bishop of Canterbury also was a bit disappointing although nice and bright

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Reviewed 31st July 2019 by Jill

Lovely Dahlia and it lasts well as a cut flower

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Reviewed 31st July 2019 by Tracy

Beautiful, a bounty of loveliness that keeps on giving.

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Reviewed 31st July 2019 by Clare

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Reviewed 31st July 2019 by Chris

Another good Dahlia good growth

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Reviewed 31st July 2019 by Susan

This year making huge flowers on a very short plant - I hope it will get taller next year

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Reviewed 31st July 2019 by Dawn

Did not produce anything.

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Reviewed 31st July 2019 by David

I bought "Islander" and "After Dusk" tubers. I potted them up but "Islander" did not produce any shoots so I reported this and you sent me another tuber. Eventually both my "Islander" tubers sprang into life but by then "After Dusk" was in bud! I pinched the tops out of all 3 plants as per your instructions. It is now 31 July and both "Islander" plants have grown to 22 inches but are yet to show any sign of buds. Also, "After Dusk" has produced a stunted and deformed plant which is only 6 inches tall, although it has produced some blooms. All 3 plants are growing in large containers. None of them have lived up to expectations and are very poor in comparison to my own home-saved tubers.

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Reviewed 31st July 2019 by Caroline

Lovely good sized healthy looking plants