Dahlia 'Penhill Dark Monarch'

A mix of soft apricot, coffee mousse and raspberry in this 'Café au Lait'-style and size of dahlia. More
1 tuber 229318-1 £3.95 Delivery late February
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When in stock, please allow up to 1 week for delivery.
3 tubers 229318-3 £10.50 Delivery late February
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When in stock, please allow up to 1 week for delivery.
1 x 3 litre plant 229318-3L £9.95 Delivery late May
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When in stock, please allow up to 1 week for delivery.

Or buy this as part of our Whopper Dahlia Collection and Flamboyant Dahlia Collection.

More Details

A mix of soft apricot, coffee mousse and raspberry in this 'Café au Lait'-style and size of dahlia. A true beauty gracing the garden and tumbling from a vase.

Genus Dahlia
Group/Species Decorative Group
Variety Penhill Dark Monarch
Type Tender Perennial Tuber
Common Name Dahlia
Border Position Back, Middle
Bulb Size I
Soil Type Acid, Chalky, Fertile, Neutral
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
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
How to overwinter dahlia tubers

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

Understanding dahlia groups

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

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...

History of the dahlia

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

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 'Penhill Dark Monarch' reviews

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Show stopper!

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Reviewed 10th October 2018 by Angie

This is so stunning, a mix of pink, purple, even coral hints and a slightly yellow centre. The flower heads are enormous rivalling the Cafe au Lait and I have never seen a dahlia like it. Needs plenty of support though due to heavy branches. Great buy!

WOW!

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Reviewed 20th September 2018 by Angie

What a beauty, this flowered late as I had planted it in a shadier spot but the flower heads are enormous ruffles of pink, coral and purple with a hint of yellow in the centre. I love the way the petals twist bringing a looser, very flamboyant feel. A dahlia which needs a lot of support but rewards you with its beauty.