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ASTER novi-belgii 'Alert'

Image of Aster novi-belgii 'Alert'

James H. Schutte

Family

Asteraceae

Botanical Name

ASTER novi-belgii 'Alert'

Plant Common Name

Alert New York Aster, New York Aster

General Description

Rich, colorful, purple-red daisies bedeck this sweet, compact perennial from late summer into fall. ‘Alert’ is a cultivar of New York aster, a bushy, clump-forming perennial originating from eastern North America. Its vivid, yellow-centered blossoms are complemented by bright green, lance-shaped foliage, and are highly attractive to bees, butterflies and other small, pollinating insects. The seeds that follow provide a source of food for seed-eating birds such as goldfinches.

Although quite adaptable, this perennial performs best in full sun and moderately fertile, well-drained, evenly moist soil. Pinching back growing tips in late spring to very early summer helps to encourage more compact growth and heavier flowering. Divide clumps every few years in spring, if necessary.

New York aster is outstanding for adding splashes of late-season color to mixed borders and wildflower gardens, and its blooms make excellent, long-lasting cut flowers. The shorter stature of ‘Alert’ also makes it suitable for fall-themed container compositions. For a vibrant autumn display, combine it with orange and gold pansies and the dark maroon leaves of ‘Redbor’ kale.

Characteristics

  • AHS Heat Zone

    8 - 1

  • USDA Hardiness Zone

    3 - 8

  • Sunset Zone

    1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

  • Sun Exposure

    Full Sun, Partial Sun

  • Height

    12"-15" / 30.5cm - 38.1cm

  • Width

    12"-18" / 30.5cm - 45.7cm

  • Bloom Time

    Late Summer, Early Fall, Fall

  • Native To

    Northeastern United States, Mid-Atlantic United States, Southeastern United States, Canada

Growing Conditions

  • Soil Drainage

    Average

  • Growth Rate

    Fast

  • Water Requirements

    Average Water

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    Magenta, Crimson

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Flower Petal Number

    Single

  • Repeat Bloomer

    No

  • Showy Fruit

    No

  • Edible Fruit

    No

  • Showy Foliage

    No

  • Foliage Texture

    Medium

  • Foliage Sheen

    Matte

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Bedding Plant, Container, Cutflower, Mixed Border, Wildflower

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Birds, Butterflies

  • Self-Sowing

    Yes