Anemone clematis Clematis montana
Anemone clematis (Clematis montana) is a deciduous perennial shrub in the Ranunculaceae family, native to Himalayas and western China. It grows 6–12 m (20–39 ft) tall and 2–4 m (6.6–13 ft) wide, wants part sun to part shade and moderate water, and is hardy to about -18 °C (0 °F). Space plants about 2 m (6.6 ft) apart.
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Anemone clematis at a glance
| Type | Perennial shrub, deciduous |
|---|---|
| Family | Ranunculaceae |
| Mature height | 6–12 m (20–39 ft) |
| Mature spread | 2–4 m (6.6–13 ft) |
| Spacing | 2 m (6.6 ft) centre to centre |
| Sun | Part sun to part shade, at least 4 h of direct sun a day |
| Water | Moderate; drought tolerance low, waterlogging tolerance none |
| Soil pH | 6.5–8 |
| Cold hardiness | About -18 °C (0 °F) once established (roughly USDA zone 6) |
| Heat stress | Likely above about 30 °C (86 °F) |
| Flowering | from about May for 3–5 weeks (northern hemisphere; later in cold climates, earlier in warm ones) |
| Wind tolerance | Low |
| Pollinator value | Moderate |
| Edible | Not grown as food |
| Native to | Himalayas and western China |
| Common in gardens of | 🇬🇧 United Kingdom, 🇮🇪 Ireland, 🇩🇪 Germany, 🇳🇱 Netherlands, 🇫🇷 France, 🇺🇸 United States, 🇳🇿 New Zealand, 🇨🇳 China, 🇯🇵 Japan |
Is Anemone clematis toxic?
- People: mildly toxic
- Cats: mildly toxic
- Dogs: mildly toxic
- Parts: all parts
Contains protoanemonin; listed by the ASPCA as toxic to cats and dogs (drooling, vomiting).
If a child or pet may have eaten part of a plant, call a poison centre or vet straight away.
Companion planting: what to grow with Anemone clematis
No well-documented helpful pairing. Group it with plants that like part sun to part shade and moderate water.
Questions about Anemone clematis
- How far apart should I plant Anemone clematis?
- About 2 m (6.6 ft) apart, centre to centre. A mature plant spreads 2–4 m (6.6–13 ft).
- Does Anemone clematis need full sun?
- Part sun to part shade: at least 4 hours of direct sun a day.
- How much water does Anemone clematis need?
- Moderate water. Drought tolerance is low and waterlogging tolerance none.
- How cold-hardy is Anemone clematis?
- It tolerates about -18 °C (0 °F) once established, roughly USDA zone 6.
- When does Anemone clematis flower?
- From about May for 3–5 weeks (northern hemisphere; later in cold climates, earlier in warm ones).
- Is Anemone clematis poisonous to cats and dogs?
- For cats it is mildly toxic; for dogs mildly toxic; for people mildly toxic. Contains protoanemonin; listed by the ASPCA as toxic to cats and dogs (drooling, vomiting).
- What grows well with Anemone clematis?
- There is no well-documented companion pairing for Anemone clematis. Group it with plants that like the same sun (part sun to part shade) and water (moderate).
Sources and evidence
Evidence grade A (A: strong evidence).
- RHS Plant Finder, Royal Horticultural Society
- ASPCA Toxic and Non-Toxic Plant List, ASPCA
- Plants of the World Online (taxonomy, native range), Royal Botanic Gardens, Kew
Notes and assumptions
- A vigorous climber that smothers walls, sheds and old trees in pink or white blossom in late spring; prune just after flowering, if at all.
Reference values for planning, not horticultural, veterinary or medical advice. Varieties, soils and local climates differ: check with a local nursery or extension service.
Related plants
- Hellebore (Lenten rose) Helleborus x hybridus
- Delphinium Delphinium elatum hybrids
- Common columbine Aquilegia vulgaris
- Japanese anemone Anemone hupehensis
- Larkspur Consolida ajacis
- Love-in-a-mist Nigella damascena
- Globeflower Trollius europaeus
- Christmas rose Helleborus niger