Meadow cranesbill

Geranium pratense. Family Geraniaceae. Perennial.

Also called Meadow geranium.

Meadow cranesbill is a clump-forming perennial with deeply divided leaves and open, violet-blue flowers in early summer. It brings a loose, meadow-like feel to borders and attracts pollinating insects. It performs best where summers are not excessively hot and the soil stays moderately moist.

Hardiness

USDA zones 4a to 9b

UK hardiness: H7 (very hardy, below -20°C)

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Grows outdoors in the shaded zones. Select a zone to see what else grows there.

Meadow cranesbill
Photo: Stephen James McWilliam
Meadow cranesbill
Photo: Kieran Roy Powell
Meadow cranesbill
Photo: Kieran Roy Powell

At a glance

Sun
Full sun to partial shade; give afternoon shade in hotter climates.
Water
Moderate; water during prolonged dry spells, especially while establishing and after cutting back.
Soil
Moderately fertile, moisture-retentive but well-drained soil; tolerates clay, loam and chalk if drainage is adequate.
Height
2-3 ft (0.6-0.9 m)
Spread
1.5-2.5 ft (0.45-0.75 m)
Flowers
Late spring to midsummer; usually violet-blue with darker veins. Named cultivars may have white, pink or purple flowers.
Foliage
Deeply lobed, hairy green leaves form a basal mound; leaves may turn reddish in autumn before dying back.
Growth
Moderate
Care needed
Low

The year at a glance

  • Pollinators
  • Deer resistant
  • Cold hardy
  • Low allergen
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Flowers
Fruit
Plant

Northern hemisphere months. In Australia, shift them by six.

Difficulty
Easy
Toughness
Fairly tough

Will it suit your garden?

Pick your zone, country, light and whether you have pets.

Full sun is 6 or more hours of direct sun a day, part shade 3 to 6 hours, shade under 3.

How it grows

  1. Planting day

    1 ft (0.3 m)

  2. After 1 year

    1.5 ft (0.45 m)

  3. After 2 years

    2 ft (0.6 m)

  4. After 3 years

    2.5 ft (0.75 m)

    full size

About 3 years to full size.

From a typical nursery size, at an average rate for this kind of plant. A rule of thumb, not a forecast.

Good to know

Cats and dogs
Safe
Native to
the UK
Invasive in
the US
In the garden
Spreads vigorously: plan to contain it.
Growth rate
Moderate

Care

Jobs through the year

WaterApr–May, Sep–Oct, every 14 days
Water established clumps only if dry; water new plants more regularly through their first season.
WaterJun–Aug, every 7 days
Water deeply during prolonged dry spells and after cutting back.
FeedMar–Apr
Apply a thin compost top-dressing; avoid heavy nitrogen feeding.
MulchMar–Apr
Mulch around the clump to retain moisture, leaving the crown uncovered.
PruneFeb–Mar
Remove dead foliage before fresh growth develops.
PruneJul–Aug
After the main flowering flush, cut ragged growth back above basal leaves and water.
DivideMar–Apr, Sep–Oct
Divide crowded clumps when flowering declines, choosing spring or autumn.
DeadheadJun–Aug, every 14 days
Remove developing seedheads if self-sown seedlings are unwanted.
ProtectMar–May
Check emerging shoots for slugs and add twiggy supports where stems tend to lean.
  • Water regularly through the first growing season, then during prolonged dry weather.
  • Apply a thin layer of compost in spring; avoid heavy nitrogen feeding, which encourages floppy growth.
  • Mulch to conserve moisture, keeping mulch away from the crown.
  • Use twiggy supports early if plants lean into paths or grow in rich soil.
  • Divide crowded clumps in spring or autumn when flowering declines.
  • Remove developing seedheads if you do not want seedlings.

Pruning. After the main flowering flush, cut tired flowering stems and ragged foliage back to just above the basal growth, then water to encourage fresh leaves and sometimes a few more flowers. Remove dead foliage in late winter or early spring.

Through the year

Early spring
Remove dead foliage and top-dress around the clump with compost.
Spring
Plant or divide clumps and water well while roots establish.
Late spring
Add discreet supports before tall flowering stems begin to lean.
Summer
After the main flowering flush, cut back untidy growth and water during dry weather.
Late summer
Remove remaining seedheads where self-seeding is unwanted.
Autumn
Plant or divide in mild regions while the soil is moist but not waterlogged.

In the garden

  • Plant in informal drifts through the middle of a cottage border for a soft wash of blue.
  • Combine with roses to soften bare lower stems without hiding the rose flowers.
  • Weave among ornamental grasses and upright perennials for contrasting flower shapes and foliage.
  • Use in a sunny, moisture-retentive meadow-style planting where occasional seedlings are welcome.

Garden styles it suits: Cottage garden, English country, New perennial (prairie), Wildflower, Pollinator garden and Blues and silvers.

Plant it with: Roses, Lady's mantle, Meadow sage, Astrantia, Oxeye daisy and Tufted hair grass.

Wildlife: Open flowers provide pollen and nectar for bees and other visiting insects. It is native across much of Europe and temperate Asia, but is not a native meadow plant in North America or Australia.

Problems to watch for

  • Powdery mildew can mark leaves in dry weather or crowded plantings; improve airflow, water the root zone during drought and remove badly affected foliage.
  • Slugs and snails may damage emerging shoots; check young growth and use barriers, hand-picking or an appropriate iron phosphate bait.
  • Stems may flop in shade or overly rich soil; provide more light, avoid heavy feeding and support stems early.
  • Hot, dry weather can cause scorched or collapsing foliage; water deeply, mulch and provide afternoon shade in hot regions.

Safety

Not known to be toxic to people, cats, dogs or horses, and no part is recognized as a significant poisoning hazard. It is an ornamental plant, not a food crop; do not confuse hardy Geranium species with Pelargonium, often sold as geraniums.

Where it spreads. Recognized as an invasive non-native plant in Alaska. It can self-seed freely in cool, moist conditions, so remove seedheads near natural grassland and check local guidance before planting.

Easily confused with

  • Wood cranesbill (Geranium sylvaticum)

    Usually has reddish-purple flowers with a conspicuous pale centre and less finely divided leaves; it is more closely associated with woodland and light shade.

  • Bloody cranesbill (Geranium sanguineum)

    Forms a much lower mound with smaller, finely divided leaves and usually magenta flowers borne singly rather than in loose clusters on tall stems.

  • Meadow buttercup (Ranunculus acris)

    Its divided basal leaves can look similar before flowering, but its flowers are glossy yellow rather than violet-blue.

The name

Geranium comes from the Greek word for crane, referring to the beak-shaped fruit, while pratense means 'of meadows'.

Propagation. Divide established clumps in spring or autumn. Sow fresh seed in autumn, or give stored seed a period of cold, moist conditions; germination can be uneven. Seedlings from named cultivars may differ from the parent, so divide cultivars to keep their characteristics.

Checked against open data

Accepted botanical name
Geranium pratense
In the US and Canada
Introduced in Canada and the lower 48 states.
Native range
Altay, Amur, Austria, Baltic States, Belarus, Belgium, Bulgaria, Buryatiya, Central European Rus, China North-Central, China South-Central and Czechoslovakia.
Measured
Soil pH 6.5 to 7. Average height 33 cm.

Sources: GBIF (CC BY 4.0), USDA PLANTS and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.

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