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Dinnerplate Dahlia Who Dun It

Dinnerplate Dahlia Who Dun It

This mysterious dahlia magically changes colors from light purple to white within a single season. Who Dun It arrives on the scene as a 6" fully double bloom in a luxuriant shade of lilac, but quickly transforms to mauve, then lavender-blue, while white petals take over in the final days. Sturdy, vigorous plant produces dozens of large blooms during the long growing season. Makes a great cut flower, as well as a fine decorative statement in borders and mixed beds.
  • Hardiness Zones 3-10. Lift in Fall in zones 3-8
  • Mature Height 36 - 48 inches
  • Bloom Time Midsummer until first frost in the fall (Jul-Oct)
  • Light Requirements Full Sun
  • Ship AsNO.1
  • Deer Resistant
  • Cut Flower

We ship this item in Spring

Botanical Name: Dahlia decorative 'Who Dun It'

Availability: Backordered
SKU: #85780
5/bag(s) Buy More and Save!
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  • 1
  • $22.00
  • $4.40
  • 5 or more
  • $17.30
  • $3.46
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  • 20 or more
  • $14.25
  • $2.85
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# Bags (5/bag) Minus Add
Price$22.00
This Item cannot ship to AE AK GU HI PR VI
* Your final payment amount will be calculated at the time of checkout.

Product Details

  • Restricted States US:

    AE AK GU HI PR VI
  • Botanical Name:

    Dahlia decorative 'Who Dun It'
  • Size:

    NO.1
  • Lift In Fall:

    3-8
  • Suggested Uses:

    Borders, Bouquets, Cut Flowers, Perennializing, Showy Flowers, Deer Resistant
  • Flower Color:

    Purple, White
  • Flower Form:

    6" fully double without a central disc
  • Foliage Type:

    Pinnate leaves with ovate leaflets
  • Mature Spread:

    24 inches
  • Spacing:

    24 inches

Growing Tips

  • Planting Instructions:

    2" deep and 24" apart.
  • Soil Moisture:

    Well drained
  • Will Tolerate:

    Acidic Soil, Clay Soil, Loamy Soil, Sandy Soil
  • Pruning Instructions:

    Pinching of the secondary bud will lead to larger flowers, but less of them.
  • Winter Care:

    Dahlias 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!
  • Planting Depth:

    2" deep
  • Watering Requirements:

    Average water needs. Water regularly, do not overwater
  • Fertilization Requirements:

    Once per year
  • Special Care:

    Not needed

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Shipping Information

K. van Bourgondien times its shipments from Holland so that bulbs and bareroots arrive at the proper planting time (depending on climatic conditions) for each area of North America.
We take advanced orders, and as the crops are harvested, our staff of K. van Bourgondien experts makes an on-the-spot selection of the finest bulbs available to fill those reservations.
We will pack and ship your order based on the following schedules. The type of product you order or the weather may affect the anticipated shipping schedule. Please note that we cannot ship outside of the 48 contiguous states. What zone am I in?

Spring 2025 Shipping Schedule

  • Bulbs and Bareroot
    Zones Shipping Dates Last Order Date
    3A-5A 4/28/25 - 5/30/25 5/26/25
    5B 4/7/25 - 5/30/25 5/26/25
    6A 3/24/25 -5/30/25 5/26/25
    6B 3/10/25 - 5/30/25 5/26/25
    7A 2/24/25 - 5/30/25 5/26/25
    7B-8A 2/17/25 - 5/9/25 5/5/25
    8B-9A 2/10/25 - 5/9/25 5/5/25
    9B-10B 2/3/25 - 5/9/25 5/5/25


Shipping Notes:
In all cases, we choose the fastest, most efficient way to send your orders via USPS or FedEx.
Orders for gift certificates will be shipped immediately.

Due to hot weather conditions, we are unable to ship any plant items from late June through August. General merchandise will be shipped with your plant order.

Upon placing your order, you will receive an email confirmation with the details of your order and a shipping estimate. You will also receive an email notification when your order actually ships with an updated arrival estimate. If you have ordered multiple items, you may receive them in more than one shipment. We will send you a separate email confirming each shipment. Large orders may be shipped in more than one package. Your order confirmation will have an estimated shipping time.

You may check your order status at any time on this website using your email or account number provided on your order confirmation.

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