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Value-for-money

Geranium macrorrhizum Spessart

Geranium macrorrhizum Spessart
Bigroot Geranium, Bulgarian Geranium, Rock Cranesbill, Hardy Geranium

4,6/5
106 reviews
11 reviews
5 reviews
4 reviews
5 reviews

Received in good condition and planted at the end of March, the geranium flowered quickly and filled out well. It is a magnificent and floriferous perennial groundcover.

PeG, 10/06/2026

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This plant carries a 12 months recovery warranty

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Value-for-money
A reliable choice for covering the soil, including amongst the roots of trees and shrubs. Its green, aromatic and almost evergreen foliage forms a dense carpet, tinged with red and bronze in autumn. White flowers with pink centres rise in spring above the leaves. Very hardy and undemanding, this hardy geranium tolerates dry shade and chalky soils.
Flower size
2 cm
Height at maturity
30 cm
Spread at maturity
50 cm
Exposure
Partial shade, Shade
Hardiness
Hardy down to -20.5°C
Soil moisture
Dry soil, Moist soil
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Best planting time March, October
Recommended planting time February to April, September to November
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Flowering time May to June
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Description

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Hardy geraniums: Planting, growing and care
Family sheet
by Alexandra 16 min.
Hardy geraniums: Planting, growing and care
Read article

Geranium macrorrhizum Spessart in pictures

Geranium macrorrhizum Spessart (Flowering) Flowering

Flowering

Flower colour pink
Flowering time May to June
Flower size 2 cm

Foliage

Foliage persistence Evergreen
Foliage colour medium green
Aromatic? Fragrant foliage when creased
Foliage description The foliage persists through winter in temperate regions; it may be partially damaged in winter in harsh climates.

Plant habit

Height at maturity 30 cm
Spread at maturity 50 cm
Growth rate fast

Botanical data

Genus

Geranium

Species

macrorrhizum

Cultivar

Spessart

Family

Geraniaceae

Other common names

Bigroot Geranium, Bulgarian Geranium, Rock Cranesbill, Hardy Geranium

Botanical synonyms

Geranium balkanum, Geranium lugubre, Robertium macrorrhizum

Origin

Cultivar or hybrid

Product reference73161

Planting and care

Geranium macrorrhizum ‘Spessart’ should be planted from February to April or from September to November, avoiding periods of frost and intense heat. Partial shade encourages dense foliage; sun is tolerated in cooler regions or if the soil retains a little moisture. Any well-drained soil can accommodate it, including poor, stony or chalky soil. Clay soil is tolerated provided water does not accumulate there in winter. To achieve continuous groundcover, allow 40 cm spacing between the young plants. Regular watering during the first summer is essential under trees, where roots quickly take up the available water. Once established, this geranium tolerates long dry spells. Propagation is carried out in spring or autumn by division and by taking sections of rootstock.

Planting period

Best planting time March, October
Recommended planting time February to April, September to November

Intended location

Suitable for Shaded rockery, Woodland edge, Undergrowth
Type of use Border, Edge of border, Slope
Hardiness Hardy down to -20.5°C (USDA zone 6b) Show map
Ease of cultivation Beginner
Planting density 5 per m2
Exposure Partial shade, Shade
Soil pH Neutral, Calcareous
Soil type Silty-loamy (rich and light)
Soil moisture Dry soil, Moist soil, rich and humus-bearing

Care

Pruning instructions After flowering, you can cut back the spent stems; tired foliage can also be pruned to encourage new leaf growth.
Pruning Pruning recommended once a year
Pruning time June to July
Disease resistance Very good
Overwinter Can be left in the ground
4,6/5

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