GardenWizzPlant Care Card

Hardy Geranium

Geranium · Perennial

Hardiness
—
Position
Full sun, Partial shade
Height × Spread
30–50 cm × 10–100 cm
Soil
Moist but well-drained soil; any soil type as long as it is not waterlogged; rich in humus.
Flowering
May–August
Toxicity
No specific toxicity is listed by the RHS. This is not a guarantee of safety — check with a vet or the ASPCA before pets or children eat any plant.

The Gardening Year

J
F
M
A
M
J
J
A
S
O
N
D
🪴 Plant out
🌸 In flower
✂️ Prune

Watch out for

Geranium sawfly: Hand-pick larvae or use biological controls; damage is often cosmetic.

Slugs and snails: Use beer traps, copper tape, or iron phosphate-based pellets to reduce populations.

Powdery mildew: Improve air circulation and apply a sulphur-based fungicide if severe.

Root rot: Ensure well-draining compost and avoid overwatering to prevent waterlogging.

Vine weevil: Apply nematode treatments in autumn or use biological controls on potted plants.

Full guide: gardenwizz.com/plants/hardy-geranium © GardenWizz — UK gardening encyclopedia