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Pugster Blue® Butterfly Bush Buddleia x

  • Sun
Flower Season
  • Summer
  • Fall
Mature Size
2' 3' 61cm 91cm
Height: 2'
Spread: 2' - 3'
Height: 61cm
Spread: 61cm - 91cm
Top Seller
  • Details

    24 - 24 Inches
    36 - 48 Inches
    24 - 36 Inches
    91cm - 1.2m
    61cm - 91cm


    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.

    Pugster Blue butterfly bush is featured in our "Pied Piper" magazine advertisement.

    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 61cm
    36 - 48 Inches 91cm - 1.2m
    24 - 36 Inches 61cm - 91cm
    Flower Colors: 
    Foliage Colors: 
    Foliage Shade: 
    Container Role: 

    Plant Needs

    Light Requirement: 

    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: 
    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.

    *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.

    PLEASE NOTE: Pugster Blue® - Butterfly Bush - Buddleia x is restricted and cannot be shipped to the state(s) of OR or WA.

    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 6,486
  • 34 Reviews

    Browse reviews from people who have grown this plant.
    • This was my first butterfly bush purchase. I absolutely fell in love and have bought 7 more (each a different variety but mostly in the pugster series) It is so beautiful and the butterflies are always on it. Compact with large blooms just as described. One of my favorite plants in my yard.

      , Virginia
      , United States
      , 35 weeks ago
    • I bought one in 2021 and loved it, Last spring (2022) I bought two from one source and five from another. They did great all summer, but the only one that came back was in a shaded/protected spot. They do not survive zone 6 winters. It wasn’t due to the heavy snow year because I shoveled the snow off them to avoid too much water.

      , Utah
      , United States
      , 43 weeks ago
    • I bought two of these on fall clearance last year and they weren't in the best shape, but since I had experience with butterfly bushes as I had one that survived my zone 5B winters for 20 years, I took a chance on them. I do not cut them back in the fall as leaving the stems holds the snow and helps to insulate the plant, plus I also add a layer of shredded leaves. I have clay soil, so I planted them high, and they came through the winter great. They were very late to break dormancy in the Spring much like Rose of Sharon, perennial Hibiscus, etc. as we had a cold Spring which just prolongs that dormancy until the daytime temperatures warm up and are consistent. They are now nice and bushy and in full bloom. I love the color blue of the flowers and the size of the plant. Much easier to place in the garden than the 8-10' tall ones. Also, the rabbits don't seem to like them!

      Cheryl Dexter
      , New York
      , United States
      , 46 weeks ago
    • I purchased the Pugster just this season and the plant seems to be doing well. I purchased this more compact plant because of space issues in this specific area where it called for something less wild & woolly but the plant is much too tight and compact compared to the traditional size. The compact nature seems to be the complete opposite of a traditional and is so far very unattractive. I think they took it too far in the compact direction. Also, compared to the traditional the blooms take a long time to replace even with deadheading so you go a long time without blooms unlike the traditional that blooms more profusely. Here in the East our Summers are short for pollinators so this is not a solid pollinator for us. It's still early to make the decision but as of today - I would not repurchase.

      Linda Montecalvo
      , Connecticut
      , United States
      , 48 weeks ago
    • I planted 2 of these last fall and they are doing great here in my zone 8a location. They are growing well and constantly covered in flowers. The butterflies love them and the Pugster Amethyst butterfly bushes I have. I followed your advice and planted them high for good drainage. They get 10+ hours of full sun every day and love it. I highly recommend these plants.

      Karen T.
      , Texas
      , United States
      , 1 year ago
    • I planted four of these in 2021. They did well for two years, but are now dead to the roots in 2023. We had a mild winter except for a single two day cold snap, so I think the cold killed them.

      Anthony D.
      , Rhode Island
      , United States
      , 1 year ago
    • Have 3 of these now, they are the best colour of Buddleja in my opinion and the initial blooms are large, mine were about 7 or 8 inches long. Grew one in a container as a centrepiece and it did very well but did require a small amount of fertiliser in a pot to keep the leaves healthy and green.

      Kurt Ilko
      , United Kingdom
      , 1 year ago
    • In my zone 5 garden this plant has experienced severe dieback of the top growth. There are a few leaves starting to emerge from the base but I am not impressed with this result. Not recommended.

      , Canada
      , 1 year ago
    • Planted Pugster Blue in a sunny location in my butterfly garden in spring of 2022. Loved the plant through the summer and fall. Here in late May of 2023 it is dead to the ground with no signs of life of any kind. Other buddleia are sending new growth from ground up. Nothing from Pugster, and I am afraid it has perished. This may be due to the freakish temperature swing we had here in Cincinnati on Dec.22, 2022, but most other buddleia at least survived at the root level. I will keep it in the ground hoping for regrowth, but confidence is low at this late date. An expensive experiment.

      Ken Z
      , Ohio
      , United States
      , 1 year ago
    • I planted my pugster in 2021 and I’ve been very happy with it! It’s too early to bloom yet this season, but it’s leafing out just fine this spring. I’m in northeast NJ. I have given it minimal attention honesty. Bio-tone when planted and that’s it.

      , New Jersey
      , United States
      , 1 year ago
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