General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Partial or Dappled Shade
Partial Shade to Full Shade
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Minimum cold hardiness: Zone 4b -31.7 °C (-25 °F) to -28.9 °C (-20 °F)
Plant Height: 30 to 36 inches (75-90cm)
Plant Spread: 18 to 24 inches (45-60cm)
Flowers: Showy
Flower Color: Other: Lilac-purple
Flower Time: Spring
Foliage Mound Height: 12 to 24 inches (30-60cm)
Underground structures: Rhizome
Dynamic Accumulator: P (Phosphorus)
Ca (Calcium)
Mg (Magnesium)
S (Sulfur)
Fe (Iron)
Na (Sodium)
Wildlife Attractant: Bees
Propagation: Other methods: Division

Image
Common names
  • Astilbe
  • False Spirea
  • False Goat's Beard
Also sold as:
  • Astilbe x arendsii 'Amethyst'

Photo Gallery
Location: Millinocket, Maine
Date: 2009
Location: Maine
Date: 2013-07-07
Location: Sun Pittsford NY
Date: 2010-07-01
Seen in back.Planted with dwarf astilbe and lilies.

photo credit: Andrei Korzun
Location: z5 MA
Date: 2010-06-24
Photo by ge1836
Location: English Gardens, West Bloomfield, MI
Date: 2016-06-29
Location: Shade garden Z6a
Date: 2010-06-24
The top of the deck rails is 4 feet.This astilbe had 2 different
Location: Clinton, Michigan 49236
Date: 2017-10-31
Astilbe x arendsii 'Amethyst', 2015, Japonica Hybrid Astilbe, uh-
Location: Clinton, Michigan 49236
Date: 2017-10-31
Astilbe x arendsii 'Amethyst', 2015, Japonica Hybrid Astilbe, uh-
Location: English Gardens, West Bloomfield, MI
Date: 2016-06-29
Location: English Gardens, West Bloomfield, MI
Date: 2016-06-29
Location: English Gardens, West Bloomfield, MI
Date: 2016-06-29
Location: English Gardens, West Bloomfield, MI
Date: 2016-06-29
Location: English Gardens, West Bloomfield, MI
Date: 2016-06-29
Location: English Gardens, West Bloomfield, MI
Date: 2016-06-29
Location: English Gardens, West Bloomfield, MI
Date: 2016-06-29
This plant is tagged in:
Image Image Image Image Image Image Image Image Image Image

Comments:
  • Posted by eclayne (Pioneer Valley south, MA, USA - Zone 6a) on Jun 2, 2012 10:48 AM concerning plant:
    Makes a beautiful dense flower display and dense foliage mound. One grouping which seldom gets watered declines significantly during the hottest (driest) part of the summer.
Plant Events from our members
eclayne On June 22, 2014 Bloomed
aspenhill On April 23, 2014 Obtained plant
ADR - qty 10; TG
aspenhill On October 20, 2012 Obtained plant
Santa Rosa via Jill - qty 5; HSG Area 5
» Post your own event for this plant

« Add a new plant to the database

» Search the Astilbes Database: by characteristics or by cultivar name

« See the general plant entry for Astilbes (Astilbe)

« The Astilbes Database Front Page

« The Plants Database Front Page

Today's site banner is by Zoia and is called "Snow White, Deep Green"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.