Skip to product information
1 of 2

Who Dun It Dahlia

A spiral of color adds whimsical intrigue


Regular price
3 for $19.54
Regular price
Sale price
3 for $19.54
Ships in Spring
  • flowering dateMidsummer to frost
  • hardiness zone3-9
  • height36 - 48 inches
  • restricted statesAE AK GU HI PR
  • ship as#1 TUBER
  • sun exposureFull Sun, Partial Shade
  • Large flowers with informal shape
  • Excellent for cutting
  • Attracts pollinators

It's no mystery why dahlia lovers are swooning over this dinnerplate dahlia. Who Dun It Dinnerplate Dahlia surprises and delights with huge flowers in shades of blue shifting to purple, with white at the center of each petal. This decorative dahlia opens in a bit haphazardly, with petals poking out at bloom time, almost like a cactus dahlia. In full bloom, each flower stands tall, at 7 or more inches wide. You'll love these big and bold flowers, and you'll receive plenty of them from this generous plant. Plant with bold cottage garden favorites like lupines and asters for a sweet and informal cutting garden.

Product Details

  • botanical nameDahlia 'Who Dun It'
  • flowering dateMidsummer to frost
  • flower colorPurple, White
  • flower form15 cm fully double without a central disc
  • foliage typeMid green pinnate leaves with oval leaflets
  • formTender Bulb
  • growth rateMedium
  • hardiness zone3-9
  • height36 - 48 inches
  • planting instructions5 cm deep and 60 - 90 cm apart
  • pruningPinching of the secondary bud will produce larger flowers.
  • restricted statesAE AK GU HI PR
  • shipping seasonSpring
  • ship as#1 TUBER
  • soil requirementWell drained
  • spacing24 - 36 inches
  • spread24 - 36 inches
  • sun exposureFull Sun, Partial Shade
  • watering requirementAverage water needs. Water regularly, do not overwater
  • winter careDahlias are not hardy. Dig the tubers in fall and store in dry peatmoss in a cool, dry and frost free location. Dry tubers for a few days (preferably outside) before storing!

Shipping Schedule

When will my order ship?

Plants will be shipped at the proper planting time for your area of the country during the shipping timeframes outlined below:

2024 Spring Shipping Schedule
Zone Most Dormant Bareroot & Potted Perennials, and Shrubs
3A-3B 4/29/24 - 5/31/24
4A-4B 4/29/24 - 5/31/24
5A 4/18/24 - 5/31/24
5B 3/25/24 -5/31/24
6A 3/11/24 - 5/31/24
6B 2/26/24 - 5/31/24
7A 2/22/24 - 5/31/24
7B 2/19/24 - 5/31/24
8A 2/15/24 - 5/10/24
8B 2/12/24 - 5/10/24
9A-10B 2/5/24 - 5/10/24
Last Order Date Zones 3A - 7B: 5/27/24
Zones 8A - 10B: 5/10/24

    Who Dun It Dahlia
    Who Dun It Dahlia