GardenWizzPlant Care Card

Panicle Hydrangea

Hydrangea paniculata · Shrub

Hardiness
H5 Hardy — cold winter (to −15 to −10°C)
Position
Full sun, Partial shade
Height × Spread
1–5 m × 1.5–2.5 m
Soil
moist, well-drained, fertile soil; adaptable to different soil types including clay and loam
Flowering
July–September
Toxicity
poisonous if ingested due to cyanogenic glycosides (hydrangin)

The Gardening Year

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

Watch out for

Hydrangea scale: Prune out heavily infested branches or treat with horticultural oil during dormancy.

Powdery mildew: Improve air circulation and spray with a fungicide or bicarbonate solution if severe.

Aphids: Blast off with water, encourage natural predators, or use insecticidal soap.

Vine weevil: Apply systemic insecticide granules to the soil in spring and autumn.

Leaf spot: Remove affected leaves and avoid wetting foliage when watering.

Full guide: gardenwizz.com/plants/hydrangea-paniculata © GardenWizz — UK gardening encyclopedia