Perennial · Saxifragaceae family
astilbe
Astilbe ×arendsii
In short a 10-second read
Astilbe (perennial) grows to 0.45–1 m tall and 0.4–0.6 m wide when mature. It grows best in full sun to shade, in average to moist soil. It flowers in June–August; the flowers are white, pink, red or purple. Hardy to −32 °C.
× spread 0.4–0.6 m
Where to plant
Sun, soil, frost.
It grows best in full sun to shade, in average to moist soil. Hardy to −32 °C.
Sun
Tolerates several positions — choose to suit the rest of the garden.
Soil and water
average to moist · watering: moderate
Soil: humus-rich, loamy, clay
Soil pH 5.5–7
Frost
It copes with a normal winter outdoors.
How much space it takes
Mature size.
The mature plant next to a person (175 cm).
Next to a person
Reaches maturity in about 2–5 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.
Calendar
What to do and when.
Months for Central Europe. The line shows the current month.
The year at a glance
Flowers
June–August · white, pink, red or purple
Pruning
prune after flowering (September–October)
Planting
container plant: March–May, September–November
Winter protection
not needed
Overwintering
It copes with winter on its own.
It overwinters outdoors without protection, hardy to −32 °C.
- Needs no protection
- Hardy to −32 °C
- Dies back in winter and regrows in spring
What to combine it with
Same needs, different flowering.
They share the same sun and soil and flower in other months — so the bed flowers for longer.
Bugle
0.15–0.3 m
lesser periwinkle
0.08–0.3 m
common snowdrop
0.1–0.25 mReady-made Studio combinations that include astilbe
Astilbes, masterwort and blue brunnera brighten part shade from April…
Siberian iris, burnet and astilbe with moor grass — for a spot where…
Frequently asked
Quick answers.
When does astilbe flower?
In June–August; the flowers are white, pink, red or purple.
Does astilbe tolerate shade?
Yes, it tolerates full shade.
How much space does astilbe need?
At maturity 0.4–0.6 m wide and 0.45–1 m tall; recommended spacing 41 cm.
Does astilbe survive winter outdoors?
Yes, without protection, hardy to −32 °C.
Where the data comes from
The data is indicative — we are still comparing it with further sources. Last checked 14 October 2026.
Show sources (21)
- NC State Extension Gardener Plant Toolbox — Astilbe ×arendsii
- Missouri Botanical Garden Plant Finder — Astilbe ×arendsii „Amethyst"
- GBIF Backbone Taxonomy — Astilbe ×arendsii
- GBIF Occurrence Search API — Astilbe ×arendsii
- Bamberger Staudengarten (Strobler), katalóg
- Foerster-Stauden, katalóg
- Sarastro Stauden, katalóg
- Royal Horticultural Society (RHS) Plant Finder
- RHS - Astilbe x arendsii
- Iowa State Extension - How to Plant Perennials
- RHS - How to grow perennial plants
- Perennials.com
- Perennials.com
- Perennials.com
- Perennials.com
- Invasive plant lists — this species is not on them: EU, Slovakia, Czechia, Germany, Poland, Denmark
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