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Pugster Blue® Butterfly Bush Buddleia x

  • 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).

Flower Season
  • Summer
  • Fall
Mature Size
24" 36"
24 - 36"

This plant is hardy in zones 5 - 9

Hardy Zones

Zones are based on the lowest average temperature an area is expected to receive during the winter. They are used to determine whether a plant is likely to be perennial in your area. If your zone is equal to or higher than the zone listed for the plant, it will be hardy for you and thrive in your climate.

  • 5
  • 6
  • 7
  • 8
  • 9
What is my hardiness zone?

My Current Zone

  • Details


    Full sized flowers on a dwarf plant!

    Meet Pugster Blue® - it's a whole new look for butterfly bush. This compact plant reaches just 2'/.6 m tall and wide but has the large, full flowers normally seen on a much larger plant. It blooms non-stop from early summer through frost with true-blue flowers, each with a tiny yellow-orange eye in the center. Thanks to thick, sturdy stems, the Pugster® series offers vastly improved hardiness and winter survival over other types of dwarf butterfly bush.

    Top three reasons to grow Pugster Blue® butterfly bush:
    1. Appealing true-blue flowers add hard-to-find color to any type of garden or landscape.
    2. It produces full-sized flowers on a compact, dwarf frame.
    3. Thick, sturdy stems ensure better winter hardiness in zone 5 than other dwarf butterfly bush.

    Best Seller
    Fragrant Flower
    Continuous Bloom or Rebloomer
    Long Blooming
    Deadheading Not Necessary
    Drought Tolerant


    Plant Type: 
    Shrub Type: 
    Height Category: 
    Garden Height: 
    24 Inches
    36 - 48 Inches
    24 - 36 Inches
    Flower Colors: 
    Foliage Colors: 
    Foliage Shade: 
    Container Role: 

    Plant Needs

    Light Requirement: 
    Maintenance Category: 
    Blooms On: 
    New Wood
    Bloom Time: 
    Summer through Fall
    Hardiness Zones: 
    5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
    Heat Zones: 
    Water Category: 
    Needs Good Drainage
    Soil Fertility Requirement: 
    Average Soil
    Border Plant
    Edging Plant
    Mass Planting
    Specimen or Focal Point
    Uses Notes: 

    Pugster butterfly bushes make an excellent addition to flower gardens.

    Please Note: Pugster Blue® Butterfly Bush Buddleia is restricted and cannot be shipped to the state(s) of OR and WA.

    *In zones 5 and colder it is not recommended for fall planting OR pruning.


    Maintenance Notes: 

    Get all the details you need to grow butterfly bush like an expert in our Ultimate Guide to Butterfly Bush.

    Fun Facts: 

    The name "Pugster" comes from these plants' resemblance to a pug - short, stocky, and cute! here are four colorful varieties to choose from: Pugster Blue, Pugster Periwinkle, Pugster Pink, and Pugster White.

    Pugster Blue® Buddleia x 'SMNBDBT' USPP 28,794, Can PBRAF
  • 7 Reviews

    • I bought two of the pugsters this year and have been very pleased by their size, flower color, and continued blooming power for such a long time. I plan to buy more...!

      Linda Malecki
      , Illinois
      , United States
      , 17 weeks ago
      Outstanding My favorite plant, I recommend to others all the time and explain the reasons why I like it so much.
    • Glorious. A stand out plant in our pollinator garden. The old blooms turn dark blue, almost black. Very dramatic appearance. Full, dark green leaves.

      Stacey Richard
      , Connecticut
      , United States
      , 20 weeks ago
      Outstanding My favorite plant, I recommend to others all the time and explain the reasons why I like it so much.
    • I planted this for the first time in eary June and it has bloomed without stop all summer. I deadhead flowers every other day to keep the vibrant blue color. The butterflies love it too. I definitely recommend this plant.

      , Ohio
      , United States
      , 21 weeks ago
      Outstanding My favorite plant, I recommend to others all the time and explain the reasons why I like it so much.
    • My new plants have been covered in blooms (and butterflies) throughout this long hot summer. At first, I overwatered and caused some leaf yellowing and leaf drop because I couldn’t imagine any new planting getting through so many hot rainless days without help. When I cut back on water, the leaves returned to health. Flowering could not be better, and the fragrance is lovely. Planted alongside some purple coneflowers and native yellow milkweed. Very happy.

      Susan Brinkley
      , Georgia
      , United States
      , 23 weeks ago
      Above Average Superior performance, among my favorites, would recommend to others.
    • I bought this because I love blue flowers and wanted a smaller Bush. It has grown very well, but it is bigger than advertised. Mine is 4 ft wide and 30” tall. The negative is that is is not self cleaning and I’m continuously having to clip off browned flowers. Since it is a prolific bloomer, the plant never looks pretty as it’s a sea of brown mixed in with the blue. I’m deadheading every 2 weeks.

      Sherry Bonds
      , Texas
      , United States
      , 31 weeks ago
      Marginally Adequate Performed below expectations but may be willing to try again.
    • I bought this beautiful blue dwarf blue butterfly bush three years ago. I have had no problems and given essentially no care after it rooted. I have it in a rock garden in central Texas. The blooms are very large on this compact bush and are outstanding! Very low maintenance. The blooms are very dark blue and lighten slightly the longer they are in bloom. A real winner and I highly recommend for smaller gardens. Be sure to plant where you can enjoy it from a window, your porch/patio.

      Lynda Talley
      , Texas
      , United States
      , 33 weeks ago
      Outstanding My favorite plant, I recommend to others all the time and explain the reasons why I like it so much.
    • I bought this because it said the blooms were true blue. I love blue flowers. This. one has BROWN blooms with tiny amounts of blue - not what I was hoping for at all. It is just plain ugly.

      Shelley Peterson
      , Ontario
      , Canada
      , 1 year ago
      Unsatisfied Did not survive, inferior performance or did not bloom well - won't grow again.
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