Clematis montana
Clematis montana
Also called Himalayan clematis, Mountain clematis and Group 1 clematis
Garden plant · ClimbersPRUNING GROUP 1. It flowers on last year's wood, so the only safe cut is straight after flowering — a tidy in spring throws the whole year away. Left alone it will swallow a garage.
Care at a glance
- Ease
- Easy
- Water
- Every 5 daysWater the ground — water at the base, in the morning, not over the leaves.
- Light
- Full sun to partial shade
- Feed
- Every 21 days
- Humidity
- Average
- Hardiness
- Hardy — a cold winter RHS H5, to -15°C
- Size
- 10 m tall · 3 m across
- Lifecycle
- Climber
- Origin
- The Himalaya, China and Tibet
Is it safe for pets and people?
PetsToxic to pets
Affects dogs, cats, horses.
PeopleIrritates skin
HandlingTake care handling it
RHS category C — a skin irritant. The sap blisters some people.
Checked against ASPCA and RHS on 2026-08-03.
A guide, not veterinary or medical advice. If a pet or a person has eaten a plant and you are worried, call your vet or doctor now — don’t wait for signs to appear. Spotted a mistake? Tell us.