How to overwinter dahlia tubers
Sarah discusses the best options for overwintering dahlias – lifting or mulching.
1 tuber 229243-1 | £3.95 |
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When in stock, please allow up to 2 weeks for delivery.
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3 tubers 229243-3 | £9.95 |
In stock
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When in stock, please allow up to 2 weeks for delivery.
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1 x 3 litre plant 229243-3L | £9.95 |
Delivery late May
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When in stock, please allow up to 2 weeks for delivery.
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Dahlia 'Indian Summer' is the best spiky, brilliant-red dahlia of all varieties we've trialled and excellent as a splash of brightness amongst the crimsons.
Our dahlias:
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.
Genus | Dahlia |
Group/Species | Semi-cactus Group |
Variety | Indian Summer |
Type | Tender Perennial Tuber |
Border Position | Back, Middle |
Bulb Size | I |
Soil Type | Acid, Chalky, Fertile, Neutral |
Scent | Unscented |
Site | Full Sun |
Moisture | Moist but Well-drained |
Height | 1m (3ft 3in) |
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. |
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 |
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Sarah discusses the best options for overwintering dahlias – lifting or mulching.
Sarah shows you how to make a gorgeous large arrangement of dahlias.
Have a beautiful display of flowers in your garden from March to the first frosts with this simple planting technique.
Sarah shows you how to make a quick arrangement of colourful dahlias.
Sarah shows you her favourite dahlia varieties for pots, and gives you some tips on how to grow them successfully.
Watch and learn how to take dahlia cuttings – turn 1 tuber into 10.
In this video Sarah shows you how to plant up your dahlia tubers.
A list of the different dahlia groups, along with some classification info and an example of a variety in each group.
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...
First discovered by Aztec Indians and used for food and medicine, this tuber has an interesting history of cultivation.
Bulb Delivery - When in stock, please allow up to 2 weeks for delivery.
Plant Delivery - When in stock, please allow up to 2 weeks for delivery.
Click here to find out more information about our delivery rates and times.
Dahlia 'Indian Summer' reviews
Height of Plant
Reviewed 4th September 2017 by Christine Sellick Followed the instructions on how to bring on the tuber. Planted it at the end of May. Was just going through the order I received it with to see how the plants compared. Have to say the height of this plant is all wrong! Not 3ft but at least 6ft. Obviously growing conditions suit the plant. No complaints at all. |
Bright and Beautiful
Reviewed 19th April 2017 by N Ismail My garden looked bright and beautiful with the Indian Summer dahlia alongside Hillcrest Royal. I had so many cut flowers too. |
Not very good
Reviewed 19th November 2014 by Alan Ford Two problems: Reply from the Sarah Raven Team:"Thank you so much for your comments. How strange that yours has flowered orange, as we've not had any other reports from customers about this. Perhaps you could email info@sarahraven.com a picture of them? To help strengthen your plants, Sarah normally recommends pinching out all but 5 stems, see her guide for more info, http://www.sarahraven.com/articles/how_to_plant_and_grow_dahlia_tubers.htm, as this may help." Posted 20th November 2014 |
superb autumn colour
Reviewed 17th November 2014 by mary dunstan Planted in a container in my sunless London patio, this performed superbly, giving enormous fiery flowers well into November. Looked good with the nearly black 'Chat Noir'. They were rich orange, however - not the red described in the catalogue. Only wish I had room to plant many more, to add joy as the cold and darkness descends. |