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Semi-Cactus Dahlia Black Wizard

This cactus-flowered dahlia opens with a dramatic purple/black center surrounded with fire engine red. The rolled petals create a spiky burst of color.

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Details:

Height: 40-48" tall
Bulb Spacing: 1 bulb / tuber per sq. ft.
Bloom Time: Mid summer until frost
Zones: 2, 3, 4, 5, 6, 7, 8, 9, 10
Shipping: Shipping begins in late March based on ground temperatures, warmest zones first.

Click Here for more details, product description, reviews, how-to guides and shipping information.

 

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Details
SKU 23DAHL3
Common Name Semi-Cactus Dahlia
Botanical Name Dahlia
Zones 2, 3, 4, 5, 6, 7, 8, 9, 10
Ships As Bulb, Rhizome, Tuber
Light Requirements Full Sun
Flower Color Red, Almost Black
Estimated Mature Height 40-48" tall
Bulb Spacing 1 bulb / tuber per sq. ft.
Planting Depth Bulbs/Tubers should be planted 1" to 2" below the soil line.
Bloom Time Mid summer until frost
Plant Type/Life Cycle Annual
Flower Size Up to 5 inch flowers
Planting Season Spring, Summer
Will Tolerate Sandy Soil, Loamy Soil, Acidic Soil
Soil Moisture Average, Well Draining
Amount of Rain N/A
Suggested Uses Hummingbirds & Butterflies, Containers, Cut Flowers, Borders, Showy Flowers, Extended Blooms, Easy to Grow
Additional Information Hardy in zones 8-10
Special Groups N/A
Native N/A
Ships to Canada No
Our Master Gardeners Suggest Pairing With:
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Description
The Cactus Dahlias are mostly large plants, like the Dinnerplates and Semi-Dinnerplates (growing between 3 and 5 ft.) with each stem producing multiple blooms. Many gardeners favor the cactus blooms with their tubular petals that form the famous fireworks' flowers. They are a sensation in the garden.

Why Gardeners love Dahlias (See combination photo below.) Dahlias are one of the most rewarding summer flowers of all. They're really easy to grow with spectacular results. If you know them, you know all about it. If you don't, here is the information you need. Prepare to become 'hooked.'

First of all, Dahlias are great for cutting, as you can see in the large top photo of an arrangement showing a lavish deep red dahlia right next to a large, voluptuous rose.

Dahlias are native to Mexico, but there's about as much resemblance between the original and the Dutch hybrids as there is between an old toy car and a brand new Mercedes. Dahlias for today's gardeners offer a really big gardening treat.

The 'bulbs' are actually tubers, and look a lot like peony roots--sort of like a bunch of carrots. The plants grow quickly and some grow quite tall, always with lush deep green foliage.

Types of Dahlias. These plants have been hybridized into various heights from short bedding plants to tall bushy ones. But they are officially categorized by flower type or shape. The term, 'Dinnerplate Dahlia' is probably the most famous description, and though all gardeners use the term, it is not an official classification. 'Dinnerplates' are, simply put, the large plants with the huge flowers. The always-double flowers are up to 8', sometimes a whopping 10' across, so the name makes sense.

Dahlia DetailsPhotos A and C are examples of Dinnerplate Dahlias. As you can see, they come in both solids and bi-colors.
Photo B
shows a whole border of tall dahlias in the garden.

Here are the official classifications:

'Decorative Dahlias' This group includes the Dinnerplates and also other taller (to 4 ft.) plants with double, chrysanthemum-like flowers. The famous 'Shogun Dahlias' are as tall as Decoratives, but have very heavy bloom of smaller bi-colored flowers for gardeners who want a large bushy plant covered with color.

'Cactus Dahlias' are the ones with the cactus-like blooms, often in super-bright bi-colors, always with the rolled, pointed petals. Like other groups, Cactus Dahlias can be of various heights, as long as they have 'cactus' flowers.

'Gallery Dahlias' are a newer group of shorter plants with flower-types of the Decoratives and Cactus groups. The Gallery group is named with terms from the art world including famous artists' names.

'Butterfly' or 'Impression Dahlias' are what the Dutch call 'bedding dahlias. They stay short, and are perfect for pots or borders. The names in this group all begin with 'F' like 'Futuro' and 'Fantastico'. The flowers are wide-open and daisy-like for a really colorful display of their brilliant hues. If well cared-for, watered, and dead-headed, they bloom constantly all season, making great masses of color.

There are other groups such as 'Ball Dahlias' and 'Pom Pom Dahlias' with spherical blooms, 'Colarette Dahlias' with uneven rows of petals creating a 'collar' effect--the varieties go on and on. Growing all of them is essentially the same, and best of all, it's easy.

Growing Dahlias: All the gardener needs to do is plant the tubers after spring frosts in good garden soil with full sun. It's best to position them against a wall or be ready to stake them, since they are brittle, and must be protected from high winds. (If you've grown perennial Delphiniums, the plant size and growth is similar, but success with Dahlias is much easier.) Keep them free of bugs, well-watered, and well-fertilized as they grow, and your dahlias will begin to set buds by midsummer and be in full bloom, usually during July or August. Then the huge flowers keep coming until frost.

When frost threatens, just pull the roots up, cut off the stems, and store the tubers until the following spring. Each fall, you'll be amazed how the 'bulbs' have multiplied during the summer, giving you more and more to divide and enjoy the next year.

One expert has said, 'Never have so many gardeners received so much for so little work, as when they grow dahlias.''

Our Master Gardeners Suggest Pairing With:
  • Garden Gloves

    Garden Gloves

  • All Annual Wildflower Seed Mix

    All Annual Wildflower Seed Mix

  • Asiatic Lily Bulbs Gironde

    Asiatic Lily Bulbs Gironde

Reviews

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Semi-Cactus Dahlia Black Wizard
 
3.0

(based on 1 review)

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Reviewed by 1 customer

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(1 of 1 customers found this review helpful)

 
3.0

Not what was pictured

By disappointed gardener

from Russellville, AR

Pros

  • Grew Well
  • Pretty

Cons

  • Not what was pictured

Best Uses

    Comments about Semi-Cactus Dahlia Black Wizard:

    the plant grew well but when it came time to bloom it looked nothing like the picture or the description. The colors that did show up were pretty though so it wasn't a complete loss

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    1
    How-To Guides
    Our Master Gardeners Suggest Pairing With:
    • Garden Gloves

      Garden Gloves

    • All Annual Wildflower Seed Mix

      All Annual Wildflower Seed Mix

    • Asiatic Lily Bulbs Gironde

      Asiatic Lily Bulbs Gironde

    Shipping

    Shipping begins in late March based on ground temperatures, warmest zones first.

    View Shipping Rate Chart

    As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Details’ tab describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

    Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment, there is no additional shipping charge. See our Shipping Information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (877) 309-7333 or Contact Us by email.

    Our Master Gardeners Suggest Pairing With:
    • Garden Gloves

      Garden Gloves

    • All Annual Wildflower Seed Mix

      All Annual Wildflower Seed Mix

    • Asiatic Lily Bulbs Gironde

      Asiatic Lily Bulbs Gironde

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