Zinnia 'Giant Dahlia Mix'

There's nothing nicer than the jumble of colours of these zinnia flowers in a jug on the kitchen table. The flowers are spectacular, huge and long-lasting. More
60 seeds 030043 £1.95 In stock
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Items will be despatched in 5-7 working days.
5 seedlings 510104-5 £5.95 Delivery early May
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When in stock, please allow up to 1 week for delivery.
10 seedlings 510104-10 £9.95 Delivery early May
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When in stock, please allow up to 1 week for delivery.

Or buy this as part of our Really Good Cut Flower Seed Collection.

More Details

There's nothing nicer than the jumble of colours of these zinnia flowers in a jug on the kitchen table. The flowers are spectacular, huge and long-lasting; a wonderful mix of oranges, reds, pinks and yellows.

Zinnia elegans are one of my very favourite families for cutting, with a long picking season and excellent vase life.

You can also buy the seed mix in our beautiful Vase and Seeds Gift Sets

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Genus Zinnia elegans
Variety Giant Dahlia Mix
Type Half-Hardy Annual
Border Position Middle
Soil Type Chalky, Neutral, Sandy
Scent Unscented
Site Full Sun
Moisture Moist but Well-drained
Height 1m (39in)
Spacing 30cm (12in)
Sowing, Seeds, Planting Sow under cover in individual cells in March-May (zinnias dislike root disturbance). Pinch out tips as you plant out after last frosts, or direct sow in May-June.
Care Tips It has a tendency to botrytis (a reason to think of using Copper Mixture or Sulphur). Do not overwater. This can be grown in a container pot.
Flowering July - first frosts, 12-14 weeks from sowing.
Vase Life 7 days. Strip bottom leaves.
Harvesting Flower production: 3 months.
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
Annual flowers – create summer colour

Create summer colour with these unbeatable annual flowers.  Sarah's absolute favourites for reliability and colour.

Direct sowing seeds

Learn how to get great results when direct sowing hardy annual seeds.

How to grow zinnias

Find out how to grow zinnia, and why you should grow them in your garden.

Delivery

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

Seeds Delivery - Items will be despatched in 5-7 working days.

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

Zinnia 'Giant Dahlia Mix' reviews

* * * * - Average based on 17 reviews

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Reviewed 21st November 2018 by Fiona

Very weak seedlings. Only 1 survived

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Reviewed 8th November 2018 by Fenella

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Reviewed 31st October 2018 by Jill

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Reviewed 3rd October 2018 by Norma

Safely received and strong healthy plants. They have flowered all summer long and are still producing more flowers than I have vases for, in fact I feel that for one flower picked another ten flower in its place. Highly recommended.

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Reviewed 21st September 2018 by Joyce

I bought a whole bunch of plug plants and tubers in Spring, all for a clients cutting garden. I grew the plant on until they were 2/3Litre pot size. The plants were all good, strong and sturdy and I only have two that died off in around 275 plants. I was dissappointed with the dahlias though as the not all came true as per the label. I certainly didnt get the Labyrinth that I ordered.

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Reviewed 20th September 2018 by Carol

Potted them up in multiple purpose compost put them in the greenhouse till the weather got better,they never really grow very well,all died in the end.

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Reviewed 19th September 2018 by Elaine

My favourite plant of the summer! Such a variety of gorgeous colours. They have produced flower after flower for cutting from mid-summer onwards. Lovely long stems and pretty flowers in jewel tones. I will definitely be buying these again - either seedlings or seeds.

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Reviewed 19th September 2018 by Stella

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Reviewed 12th September 2018 by Isabel

They were a bit feeble. A few flowers only but not the amount I’d hoped for.

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Reviewed 4th September 2018 by Susan

The last two are very poor and have hardly thrived even tho I have looked after them. I will not be buying seedlings again from Sarah. Very sad

Reply from the Sarah Raven Team:

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

Posted 7th November 2018

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Reviewed 3rd September 2018 by ANGELA

They arrived earlier than expected and I don't have a heated greenhouse. Only one survived.

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Reviewed 2nd September 2018 by Molly

These struggled with the hot, dry conditions but have revived in the past month and are now thriving. I just love the crazy 'Victorian Jelly' quality of these flowers.

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Reviewed 29th August 2018 by Adrian

Excellent. Spectacular blooms. Will grow more in jfuture

Zinnia

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Reviewed 5th August 2017 by JACQUELINE BAILEY-TUFTS

Have grown Zinnias before from other companies but have been quite disappointed with the results. Thought I'd give these Zinnia seeds a go and they are wonderful. Wish I'd put them further back in the beds as they have grown nice and tall, but very sturdy.

Brilliant eye catcher

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Reviewed 23rd July 2017 by Carmen Neumann

I was worried these would not work having seen Sarah's video stating how warm it needs to be for them, but was pleasantly surprised. Will definitely grow more next year.

Add that extra zing to the border

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Reviewed 8th July 2017 by A Holloway

Really love these especially in a south facing border where they thrive. Rich colours and strong stems which don't need supporting. Mine grow to about 60cm max. This is the third year I've grown them successfully from seed

Brilliant colour

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Reviewed 17th November 2014 by ELIZABETH WALKER

Grow these every year from seed started inside. Grew to 8 ft this year and 2 are still in flower ........! Probably the most enquired after flower in our garden for its brilliant colour and rigid stems.