Perennials

Geranium 'Brookside'

Brookside cranesbill

Also known as: Brookside hardy geranium

Brookside cranesbill, photo by David J. Stang

Violet-blue flowers with pale centers appear among deeply divided leaves. A spreading hardy geranium for informal borders and groundcover. Remove spent stems and old leaves to encourage new growth.

At a glance

Sun: Full sun to part shade; tolerates full shade
Mature size: About 20 in. tall × Up to about 20 in. wide
Water: Moderate; well drained
Hardiness: RHS H7 (UK rating: below −20°C; not a USDA-zone rating)
Bloom: Violet blue; spring–summer, with possible repeat bloom.

Sizes & prices

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Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.

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Resistance & tolerances

Drought: Water as needed to prevent prolonged drying.
Wet soil: Avoid waterlogged soil.

Seasonal interest

Foliage: Deciduous, deeply divided leaves.

Growing & care

Division: Divide in spring.

Sources & photo credits

Royal Horticultural Society

Photo: David J. Stang · CC BY-SA 4.0

Image notes: Brookside cranesbill, photo by David J. Stang Resized for web display; no crop.

Reviewed September 19, 2026. Growing conditions vary by location.