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 is a true queen of shady garden corners, flourishing when most plants struggle in insufficient light. This hybrid was created in Germany in the early twentieth century by plant breeder Georg Arends, who successfully combined the finest qualities of various astilbe species. The result exceeded all expectations: a compact, hardy, and exceptionally ornamental plant that became a favourite among gardeners on both sides of the Atlantic.

The foliage of astilbe is a true work of nature: delicate, fern-like, often displaying copper or reddish tones, especially when young. During the flowering season in June and July, airy plume-like inflorescences rise above the leaves, resembling light feathery clouds in shades ranging from soft pink to deep crimson, pure white to lilac tones. Breeders have developed dozens of cultivars, each with its own charm—from dwarf varieties for alpine gardens to magnificent hybrids reaching over one metre in height.

In the garden, astilbe is a versatile companion for semi-shaded and shaded locations. It looks magnificent on waterside plantings and in boggy areas where other plants often suffer from excessive moisture. It thrives alongside hostas, ferns, primulas, and spring-flowering bulbs, creating harmonious compositions. Mixed plantings of astilbe varieties flower in succession, delighting the eye throughout the summer season.

The plant's name tells an interesting story: it derives from the Greek 'a' (without) and 'stilbe' (lustre)—thus 'astilbe' literally means 'without lustre', as its foliage has a matte, non-glossy character, adding softness and elegance. This is precisely the type of flowering plant one can confidently recommend to beginners: they tolerate mistakes, strengthen year after year, and even when the foliage begins to fade in late summer, the seed heads remain decorative until 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