Advanced Search Filters

Plant Type
Hardiness Zone
Heat Zone
Sunset Zone
Function
Sun Exposure
Soil Moisture
Water Requirement

ASTILBE 'Key West'

Image of Astilbe 'Key West' (Simplicifolia Group, KEY SERIES)

Mary S. Thomas

Family

Saxifragaceae

Botanical Name

ASTILBE 'Key West'( Simplicifolia Group, KEY SERIES)

Plant Common Name

Astilbe, False Spirea, Key West False Spirea

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

Star astilbe (Simplicifolia Group hybrids) are clump-forming, herbaceous perennials that were first native to wooded areas of eastern Asia, primarily Japan before being crossed with other species. They are usually compact and low-growing with compound leaves (although the species has simple oval leaves) and plume-like floral inflorescences of pink, rose, and white borne in the summer. The flowerheads fade to attractive shades of brown in the fall, providing landscape interest through early winter.

The Simplicifolia Group requires well-drained, moist soils in full sun to partial shade. Star astilbe will grow in slightly warmer regions than listed below, but will be more short-lived. They function best in shade gardens, rock gardens, borders, and are used for waterside plantings and should be divided every 3-4 years when overcrowding occurs.

Characteristics

  • AHS Heat Zone

    8 - 1

  • USDA Hardiness Zone

    4 - 8

  • Sunset Zone

    A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17

  • Plant Type

    Perennial

  • Sun Exposure

    Full Sun, Partial Sun, Partial Shade

  • Height

    12"-24" / 30.5cm - 61.0cm

  • Width

    8"-36" / 20.3cm - 91.4cm

  • Bloom Time

    Early Summer, Summer, Late Summer

  • Native To

    Hybrid Origin

Growing Conditions

  • Soil pH

    Neutral

  • Soil Drainage

    Well Drained

  • Soil type

    Loam

  • Growth Rate

    Medium

  • Water Requirements

    Average Water

  • Habit

    Clump-Forming

  • Seasonal Interest

    Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Showy

  • Flower Color

    White, Red, Pink, Light Pink, Rose

  • Flower Color Modifier

    Multi-Color

  • Foliage Color (Spring)

    Red, Green, Dark Green, Bronze

  • Foliage Color (Summer)

    Red, Green, Dark Green, Bronze

  • Foliage Color (Fall)

    Red, Green, Dark Green, Bronze

  • Foliage Color (Winter)

    Red, Green, Dark Green, Bronze

  • 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

    Glossy

  • Evergreen

    No

  • Showy Bark

    No

Special Characteristics

  • Usage

    Bog Garden, Container, Cutflower, Edging, Feature Plant, Groundcover, Mixed Border, Rock Garden / Wall

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Self-Sowing

    No