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False Spiraea Astilbe x arendsii

Other Common Name(s):

Phonetic Spelling
ah-STIL-bee BY ar-END-see-eye
Description

Rhizamatous herbaceous perennials forming clumps 2-4' tall by 2' wide. Many cultivars have been selected, with thousands of tiny flowers arranged in plume-like panicles at the tops of the plants.  Does well planted in wet sites.  Divide plants in spring or fall.  Prefers moist and fertile soil.

Quick ID Hints:

  • Herb with ternately compound leaves
  • Leaves with swollen petiole joints*
  • Terminal pyramidal panicles of numerous, small flowers

Blooming in early summer; adequate moisture required for optimum performance, or foliages browns up and plant dies prematurely; clumps need dividing every 3-4 years; utilization in shade gardens, borders, massing, around water features, cut flowers, or pot plants. Prefers partial shade, but tolerant full sun; require fertile, moist soils; no serious disease problems, however powdery mildew & wilt may occur; several insect problems, such as Japanese beetle, white fly and black vine weevil.

Cultivars / Varieties:
  • 'Amethyst'
    Hot pink flowers
  • 'Fanal'
    Red flowers
  • 'Radius'
    Pink flowers
Tags:
#red#white#pink#sun#partial shade#water garden#summer#perennial#shade tolerant#cut flowers#shade garden#flower arrangements#wet sites#cpp#borders#fantz
 
Cultivars / Varieties:
  • 'Amethyst'
    Hot pink flowers
  • 'Fanal'
    Red flowers
  • 'Radius'
    Pink flowers
Tags:
#red#white#pink#sun#partial shade#water garden#summer#perennial#shade tolerant#cut flowers#shade garden#flower arrangements#wet sites#cpp#borders#fantz
  • Attributes:
    Genus:
    Astilbe
    Family:
    Saxifragaceae
    Recommended Propagation Strategy:
    Division
    Seed
    Country Or Region Of Origin:
    Asia, hybrid origin
  • Whole Plant Traits:
    Plant Type:
    Perennial
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Texture:
    High Organic Matter
    Soil Drainage:
    Moist
    NC Region:
    Coastal
    Mountains
    Piedmont
    Usda Plant Hardiness Zone:
    4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
  • Flowers:
    Flower Color:
    Gold/Yellow
    Pink
    Purple/Lavender
    Red/Burgundy
    White
    Flower Inflorescence:
    Panicle
    Flower Bloom Time:
    Summer
    Flower Petals:
    4-5 petals/rays
    Flower Description:
    Terminal, erect to arching, narrow to broad pyramidal panicles; lateral branches densely clustered, short. Small, numerous, red pink, white to lavendar; petals 5.
  • Leaves:
    Leaf Type:
    Compound (Pinnately , Bipinnately, Palmately)
    Leaf Shape:
    Oblong
    Ovate
    Leaf Margin:
    Serrate
    Hairs Present:
    No
    Leaf Description:
    Compound, usually 2-3 ternately compound, stipulate; rachis swollen and conspicuously jointed at base and junction of petolies; leaflets ovate-oblong, short-acuminate, cuneate, serrate to doubly serrate.
  • Stem:
    Stem Is Aromatic:
    No
  • Landscape:
    Resistance To Challenges:
    Wet Soil