GardenWizzPlant Care Card

Rhododendron ochraceum

Rhododendron ochraceum · Tree

Hardiness
H5 Hardy — cold winter (to −15 to −10°C)
Position
Partial shade
Height × Spread
2–6 m × 1.5–2.5 m
Soil
moist but well-drained, acid soil
Flowering
March–May
Toxicity
poisonous to grazing animals because of a toxin called grayanotoxin in their pollen and nectar; extremely toxic to horses

The Gardening Year

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

Watch out for

Powdery mildew: Improve air circulation and avoid overhead watering; tolerate mild infections.

Bud blast: Remove and destroy infected buds promptly if practical for the plant size.

Silver leaf: Prune out affected branches well below the infection site and burn them.

Budworm: Apply biological controls like nematodes in spring or prune out infested buds.

Vine weevil: Use biological nematodes on soil surface in autumn and spring to control larvae.

Full guide: gardenwizz.com/plants/rhododendron-ochraceum © GardenWizz — UK gardening encyclopedia