Primrose
My wheelbarrow

Shop

Information & Help

My account

1 Year Warranty

Join Our Gardening Club

Dahlia Rip City | Semi-Cactus Dahlia
Dahlia Rip City | Semi-Cactus Dahlia

Dahlia Rip City | Semi-Cactus Dahlia

SKU: BU30001065
1 × tuber
£5.29
Available to order from winter
3 × tubers
£12.75 £15.87 £4.25 each
Available to order from winter
1

Pot size guide

Delivery options

Bulbs (only) £4.99

Check items to add to the cart or
Thermal Extra Grip Gardening Gloves Latex All Purpose Sage Med by Smart Garden
Kent & Stowe Hand Bulb Planter 4"
Total Price

£0.00

Overview

A stunning cactus dahlia with red-black flowers and a black heart. The fully double flowers have long, narrow, pointed petals that recurve for more than half their length and have a ruffled appearance. The flowers are produced from July until the first frosts. Try it in bold groups in a sunny, sheltered border.

Specifications

  • Position: full sun
  • Soil: fertile, humus-rich soil
  • Rate of growth: average
  • Flowering period: July to October
  • Hardiness: half hardy (may need winter protection)
  • Toxicity: Ornamental bulbs should not be eaten by humans or pets

Eventual height & spread

Eventual height and spread

Care guide

Dahlia tubers can be planted outside after frost, or started off in pots under glass in late winter to early spring. Plant them horizontally approximately 12cm deep, making sure the 'eyes' are uppermost. Allow enough room between each tuber so the plants can grow and spread to their full size without being overcrowded. While in growth, provide a high-nitrogen liquid feed each week in June, then a high-potash fertiliser each week from July to September. Stake with canes or brushwood if it becomes necessary. In mild areas, leave them in situ over winter, but protect the crown with a generous layer of dry mulch. In colder areas, carefully lift and clean the tubers once the first frosts have blackened the foliage and allow them to dry naturally indoors. Then place the dry tubers in a shallow tray, just covered with slightly moist potting compost, sand or vermiculite and store in a frost-free place until planting out again.

Warning

Humans/Pets: Ornamental bulbs - not to be eaten

How your order will arrive

Packaging
Bulbs arrive in bags placed in small cardboard boxes. Material may vary.

About Primrose

About Primrose

Primrose is the place to be to Discover Everything Garden.

We were created in 2003 to become the UK's largest online-only garden centre. Thousands of plants, planters, awnings, garden furniture sets, water features and more line our digital shelves, and we're ready to fill your garden with comfort, quality, colour and style.

If you'd like to find out more, check out our 'About Us' page.

Reviews

Q&A

Get the latest news, offers and advice.

© 2025 Cercis Ltd. All rights reserved | Primrose is the trading name of Cercis Ltd (Registration number: 14521244)