GardenWizzPlant Care Card

Clustered bellflower

Campanula glomerata · Perennial

Hardiness
H7 Extremely hardy (RHS profile linked: below −20°C)
Position
Full sun
Height × Spread
20–90 cm × 50–100 cm
Soil
fertile neutral to alkaline, moist but well-drained
Flowering
June–September
Toxicity
Not assessed; do not assume safe for people or pets.

The Gardening Year

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Sow
🪴 Plant out
🌸 In flower

Watch out for

Powdery mildew: Improve air circulation and water at the base; apply a fungicide if severe.

Slugs and snails: Use physical barriers, iron phosphate pellets, or hand-pick at night.

Aphids: Spray off with water or use insecticidal soap; encourage natural predators like ladybirds.

Root rot: Ensure well-draining soil and avoid overwatering; remove affected plants if severe.

Full guide: gardenwizz.com/plants/campanula-glomerata© GardenWizz — UK gardening encyclopedia