Hosta 'Humpback Whale'
  Common Name: Hosta
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Walters Gardens Exclusive
Photo Courtesy of Walters Gardens, Inc.

Until recently, this giant sized hosta from the late Mildred Seaver was never commercially available.  In fact, it was once auctioned off for $725 at a fundraiser!  Now you can be one of the special few to own this fantastic hosta. 

‘Humpback Whale’ forms a massive, dome-shaped mound of blue-green, corrugated, heart-shaped leaves.  Its color is bluest in the springtime.  Blue-green scapes carry near-white, bell-shaped flowers in early summer. 

Mildred Seaver was known among hosta enthusiasts as the “Queen of Hostas”.  In her lifetime, she registered 95 new varieties including: ‘Spilt Milk’, ‘Queen of the Seas’, and ‘Komodo Dragon’.

Intro Year: 2012

Breeder: Seaver

Origin: Not Native to North America


  3 Feet
  7 Feet
Scape Height:
  4 Feet
Flower Color:
  White Shades
Foliage Color:
  Blue shades
Hardiness Zone:
Find Your Zone
Sun or Shade?:
  Part shade (4-6 hrs. direct sun)
  Full shade (< 4 hrs. direct sun)
Wet or dry?:
  Average water needs
  Consistent water needs
Want to see wings?:
  Attracts hummingbirds
How fast should it grow?:
When should it bloom?:
  Early summer
How's your soil?:
  Average Soil
  Fertile Soil
Sweet or Sour Soil?:
  Acidic Soil (pH < 7.0)
  Neutral Soil (pH = 7.0)
What's your garden style?:

  Click here to view the Grower Cultural Sheet

Size(s) Offered:

  Plugs: 20ct
  Plugs: 72ct


Border plants
Cut flower or foliage
Specimen or focal point
Grown for attractive foliage
Easy to grow


Common/Botanical Name
Astilbe chinensis 'Milk and Honey'
Common Name: Astilbe-Chinese
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Dicentra spectabilis 'Gold Heart'
Common Name: Bleeding Heart-Old-Fashioned
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Hakonechloa macra 'Aureola'
Common Name: Grass-Ornamental
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While every effort has been made to describe this plant accurately, please keep in mind that the height, bloom time, and color may differ in various climates throughout the country. The description of this plant was written based on our experience growing it in Michigan (USDA hardiness zone 5) and on numerous outside resources.