Dahlia Cactus Mix

Marvellous, spiky sea-urchin dahlias, which are great for cutting and will flower in the garden for many years. More
40 seeds 153002 £1.95 In stock
Items will be despatched in 5-7 working days.
More Details

Marvellous, spiky sea-urchin dahlias, which are great for cutting and will flower in the garden for many years.

Genus Dahlia
Group/Species variabilis
Variety 'Cactus Mixed Colours'
Type Tender Perennial (grown as a Half-Hardy Annual)
Common Name Dahlia
Border Position Back, Middle
Soil Type Acid, Chalky, Fertile, Neutral
Scent Unscented
Site Full Sun
Moisture Moist but Well-drained
Height 1.2m (4ft)
Spacing 65cm (25in)
Sowing, Seeds, Planting Sow the seeds onto the surface of the compost and cover with a layer of vermiculite. Cover the trays with a clear plastic bag, until the first seedlings are visible. Do not allow to dry out. 
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.
Flowering July - October, 16 weeks from sowing
Harvesting Flower production 3-5 months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Sow Under Cover/Plant Indoors
  • Direct Sow/Plant Outdoors
  • Flowers/Harvest

We don't currently have additional advice on using / growing this particular product on our website, but if you do have a question that isn't answered on this page then please give us a call on 0345 092 0283 and we'll happily chat through any queries you may have, or email us on plantadvice@sarahraven.com (for advice on all things growing) or info@sarahraven.com for anything else.


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Dahlia Cactus Mix reviews

* * * * * Average based on 2 reviews
Cactus mx

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Reviewed 10th October 2018 by pam@west-lynne.co.uk

I have grown dahlias from seeds this year from the cactus mix as well as, experimentally, from Magenta Star, a Sarah Raven plant that I’ve had for two or three years. The cactus mix seeds were a delightful variety of, mostly single, brightly coloured flowers. Each is a type that I would hope to overwinter...plenty of mulch, I hope, should see them through. As an aside, the plants from Magenta star vary from light pink to red but none has the dark leaves of the parent plant. I’ll take cuttings in Spring.

Dazzling dahlias

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Reviewed 21st August 2017 by Linda Jackson

I've grown dahlias from tubers with mixed success so tried seeds this year without great expectations but they are the best dahlias I've grown. Easy and reliable to germinate, sturdy plants some of which are well over a metre high and with masses of flowers from mid June. The colours are lovely by and large although I'm not a fan of acid yellow, with some better than named varieties and what's wrong with a bit of serendipity in the garden? Brilliant plants and all for £1.95.