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Perennial · Geraniaceae family

Bloody cranesbill

Geranium sanguineum

Full sun to part shade 0.2–0.5 m × 0.4–0.6 m Flowers May–August to −32 °C
Flower colours Click a colour

In short a 10-second read

SunFull sun to part shade
Size0.2–0.5 m
spacing 35 cm
FlowersMay–August
PlantingMarch–May, September–October
WinterNo winter protection

Where to plant and how much to water

Sun, soil and water.

It grows best in full sun to part shade, in dry to average soil.

Sun

Sun6 hours or more
Part shade3–6 hours
Shadeunder 3 h

Soil

tolerates any pH
acidicneutralalkaline
dry to averageloamyhumus-richsandy

Watering

only in dry spellsdrought tolerant once establishedless when it rains

Frost

−32 °C
no winter protectiondies back in winter, regrows in spring

How much space it takes

Mature size.

The mature plant next to a person (175 cm).

50 cm1 m1.5 m0.2–0.5 mspread 0.4–0.6 m
0.2–0.5 m× spread 0.4–0.6 m

Plant 35 cm apart.

Reaches maturity in about 2–5 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.

Calendar

Through the year.

Months for Central Europe. The line shows the current month.

The year at a glance

Flowers: JanuaryFlowers: FebruaryFlowers: MarchFlowers: AprilFlowers: MayFlowers: JuneFlowers: JulyFlowers: AugustFlowers: SeptemberFlowers: OctoberFlowers: NovemberFlowers: DecemberPlanting: JanuaryPlanting: FebruaryPlanting: MarchPlanting: AprilPlanting: MayPlanting: JunePlanting: JulyPlanting: AugustPlanting: SeptemberPlanting: OctoberPlanting: NovemberPlanting: DecemberFeeding: JanuaryFeeding: FebruaryFeeding: MarchFeeding: AprilFeeding: MayFeeding: JuneFeeding: JulyFeeding: AugustFeeding: SeptemberFeeding: OctoberFeeding: NovemberFeeding: DecemberProtection: JanuaryProtection: FebruaryProtection: MarchProtection: AprilProtection: MayProtection: JuneProtection: JulyProtection: AugustProtection: SeptemberProtection: OctoberProtection: NovemberProtection: DecemberJanFebMarAprMayJunJulAugSepOctNovDec
FlowersPlantingFeedingProtection
Now, in October: a good time for planting (container plant). · watch for vine weevil.
JanFebMarAprMayJunJulAugSepOctNovDec

Flowers

JanFebMarAprMayJunJulAugSepOctNovDec

May–August · pink, purple or white

Planting

JanFebMarAprMayJunJulAugSepOctNovDec

container plant: March–May, September–October

Feeding

JanFebMarAprMayJunJulAugSepOctNovDec

March–May

Protection

JanFebMarAprMayJunJulAugSepOctNovDec

August–September (protection): Water in nematodes against vine weevil larvae (August to early September). · Autumn (protection): Remove affected fallen leaves in autumn; this reduces the amount of spores in spring.

What to plant now (October) full list in October (244) →

Feeding

Nutrition.

Light
balanced fertilisercompost or mulch
JanFebMarAprMayJunJulAugSepOctNovDec

Pests and diseases

Common problems and what to do.

The most common problems in Central Europe. Protection is listed from the gentlest option.

Vine weevil

Vine weevil

Otiorhynchus sulcatus
pest
More about this problem

What you will see

Adult beetles notch leaf edges; larvae eat the roots and the plant wilts.

When to look

JanFebMarAprMayJunJulAugSepOctNovDec
September–March

How to protect

  1. Prevention
    • When planting and repotting, check the roots and remove larvae.
    • Encourage birds, toads, hedgehogs and ground beetles.
  2. By hand May to SeptemberEvening collection of adult beetles by torchlight; pick larvae out of the roots and soil.
  3. Biological August to early September, soil warm enoughNematodes (Steinernema, Heterorhabditis) watered into the soil against the larvae.
Vine weevilpest · September–March

What you will see

Adult beetles notch leaf edges; larvae eat the roots and the plant wilts.

When to look

JanFebMarAprMayJunJulAugSepOctNovDec
September–March

How to protect

  1. Prevention
    • When planting and repotting, check the roots and remove larvae.
    • Encourage birds, toads, hedgehogs and ground beetles.
  2. By hand May to SeptemberEvening collection of adult beetles by torchlight; pick larvae out of the roots and soil.
  3. Biological August to early September, soil warm enoughNematodes (Steinernema, Heterorhabditis) watered into the soil against the larvae.
More about this problem

Geranium sawfly

Ametastegia carpini
pest

What you will see

Larvae nibble the leaves of cranesbills.

How to protect

  1. Prevention
    • Check leaves regularly.
  2. By hand when they appearPick off larvae by hand or wash them off with water.
Geranium sawflypest

What you will see

Larvae nibble the leaves of cranesbills.

How to protect

  1. Prevention
    • Check leaves regularly.
  2. By hand when they appearPick off larvae by hand or wash them off with water.

What you will see

White powdery coating on leaves and stems; leaves curl and dry out.

When to look

From spring onwards

How to protect

  1. Prevention
    • Sunny, airy position; not in a still spot against a wall.
    • Do not overdo nitrogen (lush young leaves are more susceptible).
    • Water at the roots, not on the leaves.
  2. By hand as soon as the first symptoms appearQuickly cut out affected shoots and burn them or take them away (not to the compost).
  3. Gentle spray at the start of infectionSulphur or fatty acids (potassium soap) according to the label.
  4. Chemical — only when nothing else helps only in a heavy attackA product authorised in your country against powdery mildew.
Powdery mildewsdisease · from spring onwards

What you will see

White powdery coating on leaves and stems; leaves curl and dry out.

When to look

From spring onwards

How to protect

  1. Prevention
    • Sunny, airy position; not in a still spot against a wall.
    • Do not overdo nitrogen (lush young leaves are more susceptible).
    • Water at the roots, not on the leaves.
  2. By hand as soon as the first symptoms appearQuickly cut out affected shoots and burn them or take them away (not to the compost).
  3. Gentle spray at the start of infectionSulphur or fatty acids (potassium soap) according to the label.
  4. Chemical — only when nothing else helps only in a heavy attackA product authorised in your country against powdery mildew.
More about this problem

What you will see

Holes in leaves and shiny trails, especially on young shoots in spring.

How to protect

  1. Prevention
    • Water in the morning so the plant dries off by evening.
    • Watch and protect young shoots in spring.
    • Encourage natural enemies (birds, toads, hedgehogs).
  2. By hand damp, mild evenings from spring to autumnCollect slugs and snails in the evening by torchlight; traps made of half an orange or containers of beer.
  3. Biological warm, moist soil, spring to early autumnPhasmarhabditis hermaphrodita nematodes watered into the soil (effective against slugs, less so against snails).
Slugs and snailspest

What you will see

Holes in leaves and shiny trails, especially on young shoots in spring.

How to protect

  1. Prevention
    • Water in the morning so the plant dries off by evening.
    • Watch and protect young shoots in spring.
    • Encourage natural enemies (birds, toads, hedgehogs).
  2. By hand damp, mild evenings from spring to autumnCollect slugs and snails in the evening by torchlight; traps made of half an orange or containers of beer.
  3. Biological warm, moist soil, spring to early autumnPhasmarhabditis hermaphrodita nematodes watered into the soil (effective against slugs, less so against snails).
More about this problem

What you will see

Distorted leaves and buds, small holes and spots.

How to protect

  1. Prevention
    • Check shoots in spring.
  2. By hand once noticedCut back affected shoots.
Capsid bugspest

What you will see

Distorted leaves and buds, small holes and spots.

How to protect

  1. Prevention
    • Check shoots in spring.
  2. By hand once noticedCut back affected shoots.
More about this problem
Sources (6)

Frequently asked

Quick answers.

When does bloody cranesbill flower?

In May–August; the flowers are pink, purple or white.

Does bloody cranesbill tolerate shade?

It tolerates part shade (3–6 hours of sun), but not full shade.

How much space does bloody cranesbill need?

At maturity 0.4–0.6 m wide and 0.2–0.5 m tall; recommended spacing 35 cm.

Vine weevil — what can you do?

When planting and repotting, check the roots and remove larvae. Evening collection of adult beetles by torchlight; pick larvae out of the roots and soil.

Geranium sawfly — what can you do?

Check leaves regularly. Pick off larvae by hand or wash them off with water.

Sources (14) Checked 24 October 2026

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