The Botanical Diary
A
Flowers

Astilbe

Astilbe × arendsii
Also known asastilbe, false spirea, feather flower

The name derives from the Greek 'a – without' and 'stilbe – shine' – foliage without lustre.

Regions
all regions
Colour
pink, ліловий, red, white
Astilbe (astilbe, false spirea, feather flower)
🌸
Bloom
June–August
☀️
Light
Partial shade / тінь
💧
Watering
High
📏
Height
0,4–1 m
❄️
Hardiness
Zone 4а

Astilbe Arendsii is a true queen of shaded garden corners, flourishing when most plants struggle without adequate sunlight. This hybrid was born in Germany in the early twentieth century thanks to the breeder Georg Arends, who successfully combined the finest qualities of various Astilbe species. The result exceeded all expectations: a compact, resilient and extraordinarily decorative plant that became a favourite with gardeners on both sides of the Atlantic.

The foliage of Astilbe Arendsii is a true work of nature—delicate, fern-like, often displaying copper or reddish tones, especially when young. During its flowering period in June and July, airy plumes rise above the leaves, resembling light, feathery clouds in shades ranging from soft pink to deep crimson, from pure white to violet-tinged tones. Breeders have developed dozens of cultivars, each with its own charm—from dwarf forms for alpine gardens to luxuriant hybrids reaching more than a metre in height.

In the garden, Astilbe is a versatile ally for shaded and partially shaded locations. It thrives on the banks of water features and in boggy areas where other plants often succumb to excessive moisture. It pairs beautifully with hostas, ferns, primulas and spring-flowering bulbs, creating harmonious planting combinations. Mixed plantings of different Astilbe varieties flower successively, delighting the eye throughout the summer.

The plant's name tells an intriguing story: it derives from the Greek 'a' (without) and 'stilbe' (lustre)—thus 'Astilbe' literally means 'without shine', as its foliage possesses a matt, non-reflective character that adds softness and elegance to the whole plant. This is precisely the sort of flowering plant to recommend confidently to beginners: it tolerates mistakes, grows stronger year after year, and even when the foliage fades by late summer, the seed heads remain ornamental through to autumn.

Location & soil

Astilbe — planting & location

LightPartial shade / тінь
Soil typerich, moist, рН 5,5–6,5
Planting timeApril–May або August
Plant spacing0,3–0,5 m
Planting depth10–15 см

Ideal for shaded gardens; moisture-loving.

Water needs

How to water Astilbe

IntensityHigh
FrequencyEvery 5–7 days (в)
Volume12–15
MethodAt the base

Do not allow the soil to dry out.

Annual care

Fertilizing and pruning: Astilbe

Spring fertilizingNitrogen + iron (April).
Summer fertilizingPhosphorus–potassium (June–July).
Autumn fertilizingDo not feed.
Pruning timeOctober (sanitary)
Pruning typeSanitary

Cut back to 5 cm in autumn.

Cold hardiness

Astilbe — winter hardiness & care

Hardiness zoneZone 4а
Winter coverBark mulch + moss, 7–10 cm deep.
Cover timingNovember
Plant protection

Diseases and pests of Astilbe

Garden design

What grows well with Astilbe?

Хоста, папороть, Primrose