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Superbells® Lemon Slice® Calibrachoa hybrid

Flower Season
  • Spring
  • Summer
  • Fall
Mature Size
12" 2' 30cm 61cm
Height: 6" - 12"
Spread: 12" - 2'
Height: 15cm - 30cm
Spread: 30cm - 61cm
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  • Details

    6 - 12 Inches
    8 - 12 Inches
    12 - 24 Inches
    15cm - 30cm
    20cm - 30cm
    30cm - 61cm


    The pinwheel pattern of alternating slices of yellow and white is really striking and quite unique.

    Best Seller
    Award Winner
    Continuous Bloom or Rebloomer
    Long Blooming
    Fall Interest
    Heat Tolerant
    Deadheading Not Necessary


    Plant Type: 
    Height Category: 
    Garden Height: 
    6 - 12 Inches 15cm - 30cm
    Trails Up To: 
    24 Inches 61cm
    8 - 12 Inches 20cm - 30cm
    12 - 24 Inches 30cm - 61cm
    Flower Colors: 
    Flower Colors: 
    Flower Shade: 
    Yellow and white pinwheel pattern
    Foliage Colors: 
    Foliage Shade: 
    Mounding Trailing
    Container Role: 

    Plant Needs

    Light Requirement: 
    Part Sun to Sun

    The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours).

    Maintenance Category: 
    Bloom Time: 
    Planting To Hard Frost
    Hardiness Zones: 
    9a, 9b, 10a, 10b, 11a, 11b
    Water Category: 
    Needs Good Drainage
    Uses Notes: 

    Calibrachoa do not like to have constantly damp soil. They will do well in the ground only with good drainage. For most gardeners containers are the best use for Calibrachoa.

    Maintenance Notes: 

    When planting Calibrachoa I often give the plants a slight trim, using a sharp pair of scissors or pruning shears. While not a necessary step, it will increase branching and may help your plants look even fuller.


    Calibrachoa are usually easiest to grow in containers. If the roots are kept too wet it can lead to root rot diseases. In containers, allow the top of the soil to dry before watering again. If your plant is wilting even though the soil is still damp you likely have a root rot problem.


    Calibrachoa can be fantastic in-ground plants, but only if they are planted in well-drained soil. Raised beds would be a good choice for planting Calibrachoa in the landscape. In the ground they shouldn't need much additional water unless conditions are very dry. Proper watering is key to growing good Calibrachoa.


    The plants are low-maintenance with no deadheading needed. They will do best if fertilized on a regular basis. Calibrachoa can be sensitive to both high and low pH. If your plants have been growing for a while and then begin to look a bit tired and not so good there are several things to try. If the foliage is yellow there are two possible causes. If you haven't been fertilizing regularly they could simply be hungry and in need of fertilizer. Feed them using a well-balanced (look for something with an n-p-k ratio near 24-12-17) water soluble fertilizer. If you have been fertilizing regularly with a well-balanced fertilizer and the foliage is still turning yellow, it is probably because the pH range in your soil has gotten a bit high or low. The most common impact of this is that Iron can no longer be taken up by the plant, even if it is available in the soil.


    The common form of Iron used in fertilizer is sensitive to pH changes. If you think pH is your problem you can either try to lower (or raise) the pH or you can simply apply Chelated Iron, which is available at a wider pH range and should help your plants turn green again. You may also be able to find Iron in a foliar spray (which means you spray it on the foliage rather than applying it to the soil) which can also help your plant turn nice and green again. Stop by your favorite garden center and they should be able to help you choose a product to use. Or use our Proven Winners Water Soluble fertilizer, which has the chelated iron.


    As the season goes on the plants can sometimes just start to look open and not as good. This can happen even if they are being watered and fertilized correctly. Fortunately this is very simple to fix. Grab a sharp pair of scissors or pruning shears and give the plants an all over trim. This will cause them to branch out more and should stimulate new growth and flowering, especially if you fertilize right after trimming them back. Just like your hair looks a lot better after a trim, your plants often will too. You will sacrifice flowers for a few days, but the plants should shortly come back flowering more than ever. I will usually give my Superbells a trim back in late July or early August. Should your plants have a few unruly stems that are longer than everything else or sticking our oddly, you can trim these stems back at any time. Calibrachoa are very forgiving when it comes to trimming.

    An application of fertilizer or compost on garden beds and regular fertilization of plants in pots will help ensure the best possible performance.

    Woo-hoo! There is nothing more super than Superbells. If there was a word that meant extra, extra super it still wouldn't be as super as we are. Calibrachoas are a new type of plants that sort of look like little Petunias, which makes sense seeing as we're related.

    Superbells® Lemon Slice® Calibrachoa hybrid 'USCAL5302M' USPP 24,353, Can 4,917
  • 38 Reviews

    Browse reviews from people who have grown this plant.
    • I bought these for containers flanking my driveway. Afternoon sun exposure. I gave them a trim and they are starting to fill in. They ARE thirsty -- so I cannot forget their AM watering. The lemon yellow/white pinwheel color is so striking and beautiful. I do NOT understand why they cost 2x as much on the PW website as they do in a local garden center.....

      , North Carolina
      , United States
      , 1 year ago
    • I expected these to perform better than they did. After a couple of months they looked lackluster.

      , California
      , United States
      , 1 year ago
    • Very pretty yellow plant. I found two of these on the clearance rack at Walmart for $1.30. I put them in a planter with Picasso in Purple. They are not as full as the Picasso plant, but a very nice contrast color. I havent had them long and right now they are blooming upwards; no trailing. I would purchase again.

      Sue B
      , Ohio
      , United States
      , 2 years ago
    • These were one of the best performers among the Superbells I planted in my balcony railing planters. They flowered prolifically from the time I planted the young small plants just after the last frost, until I had to yank out the enormous trailing 3 foot long masses they had grown into at the end of November so I could prepare for winter/spring. A good companion variety would be Over Easy, which grew at about the same rate and size. I also planted them with Blue Moon Punch and Tangerine Punch, which were slightly less vigorous but still kept up pretty well.

      Jersey Ray
      , New Jersey
      , United States
      , 2 years ago
    • Oh my goodness! We just potted some of the Lemonslices on our front porch and they are just eyepopping! I’m so very happy with them! They look just like they did the day we planted except with more blooms! No wilting at all! Wish I could say the same for my petunias!

      Bonnie Hoke
      , Texas
      , United States
      , 4 years ago
    • Lemon Slice has been a winner in my flower box! (I wouldn't try to grow calibrachoas in the ground. Clay soil does not work for them.) It's been the most vigorous calibrachoa I've grown!

      Sharon Sivertsen
      , Illinois
      , United States
      , 5 years ago
    • Since a long visit to Germany and the Alp area, I have fallen in love with cascading flowers out of windowboxes. Usually use cascading petunias, trailing geraniums, and vinca vine. Saw these lemon yellow plants last year, and planted a few as accent in my boxes. I was very pleased with the constant color, and hummingbirds & butterflies loved them too. They kept blooming until a hard freeze, and I live in Kansas so it does get cold. Plan to find some more this year. Definitely a winner!

      M. Mulryan
      , Kansas
      , United States
      , 7 years ago
    • Stumbled across Lemon Slice couple of years ago at Home Depot and tried some outside a B&B room (w yellow/white décor). LOVED them. Every factor associated w the write-ups of Million Bells was true for us - mounding. not fussy, last all season, love sun, etc, etc, etc. But then ... couldn't find them anymore (or the original label to even see what they were) !!! Was at a friends house and admiring a gorgeous potted mound of colour. He told me they were Million Bells and my research brought me here. I'm now planning out my colours for planting Calibrachoa all across the back of my property (where the sun shines (bakes/kills) all day. I've liked the Wave Petunia's from the last couple of years but they don't hold a candle to Million Bells - prolific and colour choices and tough enough for my mishandling. Now the challenge will be to find or order the colours I want for my place - just a retail customer so zero buying power. Can hardly wait till spring. Yippee.

      Steve Collier
      , Ontario
      , Canada
      , 7 years ago
    • This is my first experience with Superbells and it's a fantastic plant. Beautiful bright yellow and white flowers with perfectly crisp stripes covered the vine in abundance from purchase to present -- and it's mid-November in New England! The buoyant vines branch to a width of about 12 inches and are 18 inches long. I went away the first week of August and forgot to ask someone to water my Superbells. I returned to a brown, fried plant with just a few yellow flowers remaining. I thought it was gone. But I trimmed off the crispiest branches and watered well, and the plant cheerfully rebounded. Now, three months later, it is crowded with perfect flowers, spilling over my plantar. It's one of the prettiest flowers in my garden and utterly care free.

      , Rhode Island
      , United States
      , 9 years ago
    • thegardenerd
      , 9 years ago
  • 17 Awards

    Award Year Award Plant Trial
    2013 Leader of the Pack - Early Season Containers North Carolina State, JC Raulston Arboretum
    2012 Best New Calibrachoa Colorado State University
    2012 Classic City Award University of Georgia
    2012 Top Performer Mississippi State University - Crystal Springs
    2012 Top Performer Michigan State University
    2012 Top Performer Massachusetts Horticultural Society at Elm Bank
    2012 Top 10 Massachusetts Horticultural Society at Elm Bank
    2012 Excellent Performer University Laval
    2012 Top Performer in Containers Colorado State University
    2012 Top Performer Ohio State University Chadwick Arboretum - Springfield
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