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A large, lovely,and super useful bluestar.

Amsonia Blue Behemoth

A big bluestar that will make a statement wherever you plant it with it's 4' tall branches and icey-blue spring flowers.

Blue Behemoth is a big bluestar with so much potential and personality. Plant these in a matrix planting or mixed border where you would like a bold exclamation mark, use it en masse in a large area, or dot it through your foundation or border to add three seasons of interest in any full sun spot. The fall color on this is pale golden yellow and the stems remain for most of the winter.

Please note: We don't sell plants. Asking your local retailer or googling the plant name is the easiest way to find someone selling our plants.

Please note: Download hi-res photos from the photo gallery at the bottom of the page.


Who Am I?

  • Common Name

    Blue Behemoth bluestar
  • Botanical Name

    Amsonia 'Blue Behemoth' PP35930
  • Type

    Perennial
  • US Native?

    YES
  • Bloom Time

    Spring
  • Bloom Color

    White

Cultural Details

  • Bloom Time

    Spring
  • Size

    40-42" tall by 8' wide
  • Hardiness Zone

    4-8
  • Light

    Full sun
  • Soil

    Average to dry garden soils
  • Moisture

    Moist, but well-drained
  • Disease & Pests

    None known
  • Landscape Use

    Borders, foundations, matrix plantings, naturalized plantings
  • Propagation

    Softwood Cuttings

Available Photos

Hover over images to download hi-res files.