Superbells Holy Cow! Calibrachoa (Calibrachoa 'Superbells Holy Cow!')
kal-ih-brah-KOE-ah 'Superbells Holy Cow!'

Annual (usually grown as an annual near you) in the Solanaceae Family
A playful Calibrachoa with white blooms splashed in pink and centered with a cheerful yellow eye, blooming non-stop from spring to frost.
This award-winning Calibrachoa produces abundant small petunia-like flowers with a white base overlain with pink splotches and a yellow eye. The cascading, mounding-trailing habit makes it a top choice for hanging baskets and mixed containers, blooming continuously from planting until hard frost.

Pros

  • Continuous, self-cleaning bloom with no deadheading needed
  • Heat tolerant and easy to grow
  • Earned multiple university Top Performer trial awards
  • Attracts hummingbirds

Cons

  • Needs good drainage; sensitive to overly wet soil
  • Tender annual in Chicago; won't survive winter outdoors
  • Benefits from regular feeding to sustain bloom
This plant is probably not winter-hardy outdoors where you live.
 

Plant Data

Mature Size 6 - 12 inches tall. 12 - 24 inches wide.
Sun Exposure Partial Sun - Full Sun
Moisture Tolerance Medium
Zones 9a - 11b (Usually hardy to 20° F)
Tags Annual, Deciduous, Full Sun, Medium, Partial Sun
Bloom Period Planting to frost
Flower Color White with Pink Splotches, Yellow Eye
 

Plant Club Content

 

In The News

Photos of This with...

Superbells Holy Cow! Calibrachoa, Superbells Double Orchid Calibrachoa, Superbells Yellow Calibrachoa, Diamond Frost Spurge, Berried Treasure Red Strawberry, Truffula Pink Globe Amaranth, Amazel Basil, Supertunia Vista Fuchsia, Supertunia Vista Paradise Petunia, Rockin' Fuchsia Salvia, Pink Wonder Fan Flower, Whirlwind Pink Fan Flower, Superbena Whiteout Verbena,
 
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Pricing and Availability History

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Past Availability
2025 : 02/05 - 05/17
2024 : 02/08 - 05/18
2023 : 03/02 - 05/21

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Field-Grown vs. Greenhouse-Grown Plants

Plants which are well-adapted to our local climate are most often field-grown (outside). Field-grown plants are generally cheaper and have the advantage of already somewhat acclimated to our cold winters, but that means they’re not artificially far along in the spring and tend to bloom at the normal time in our area.

Spring annuals and tender perennials are typically grown in Greenhouses so they can be ready and luxurious exactly when customers want them. Some perennials are also “forced” into early bloom in greenhouses. In May, there can be a very big difference between field-grown and greenhouse-grown plants of the same type. The latter typically look good right away (so they’re a great choice where that’s important), but we typically pay a premium for it.


Estimated Recipe Cost

The cost of this recipe's ingredients will vary depending on the season and the sizes and varieties you select.


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To secure the best prices for club members and make sure we know the current plants available from each nursery, we take orders only a couple of times a month.

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No Pricing or Availability Right Now

We order from a rotating cast of the best nurseries in the Great Lakes region. It looks like we've offered this plant in the past, but the nurseries we're working with this week don't appear to have it in stock at the moment.

Our goal is to bring as many plants together under "one roof" as possible, so we'll try hard to make it available again in the future!