Clematis is a climbing vine, a long-term addition to the landscape. It's hardy across USDA zones 4 through 8 and shrugs off deer. Its summer flowers are a moderate draw for honeybees and native bees.
Clematis — the short answer
Clematis: grown in zones 4–8.
- USDA zones
- 4–8
- Not verified — NC State Extension Gardener Plant Toolbox lists zones 3a–9b
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — each tile names its own row's source, because per-field provenance varies.
Score Clematis on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether clematis actually takes — and those shift from one yard to the next. Enter your address and we'll score clematis against your land's real conditions.
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
No card required · your parcel report in seconds — read in full free for your first 14 days
What Clematis is
Clematis grows as a perennial and reaches around twelve feet at maturity. It blooms in summer. It's also deer-resistant.
How to grow Clematis
Clematis grows in USDA zones 4 through 8. It needs around 2,000 growing degree days to mature, which is why climate matters as much as soil.
USDA Zones
4-8
Not verified — NC State Extension Gardener Plant Toolbox lists zones 3a–9b
Soil pH
Data pending
Sun
Data pending
Drainage
Data pending
GDD Required
2000+
Growing degree-days of accumulated warmth it needs to mature — humid summers reach this faster than cool coastal ones.
Growable Ground plant catalog
Mature Height
12 ft
Growable Ground plant catalog
Start the season right
Plant clematis in full sun.
Match the soil
Pull a soil test from your local Extension lab to confirm pH and drainage match clematis's needs before planting.
Water steadily
Keep the root zone evenly moist through establishment. Match watering to the plant's drainage preference and your local rainfall.
Harvest at its peak
Cut clematis blooms in the cool of the morning, just as they open, for the longest display.
Where Clematis thrives
Clematis is hardy across USDA zones 4 through 8. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.
A USDA zone is a 10°F band of average annual extreme winter minimum, so zones 4–8 spans average winter lows from -30°F to 20°F (USDA PHZM 2023). Across the 50 states and DC, that band covers 25 outright and splits 26 more down the middle — and which side of that line your land sits on changes the answer.
Zones 4–8·Where Clematis growsOpen map →
This map is derived from the USDA ARS / PRISM Plant Hardiness Zone Map (2023) and is not the official USDA Plant Hardiness Zone Map.
Where Clematis stands, state by state
Clematis is rated for zones 4–8 — a cold floor USDA puts at -30 to -20°F. Across the 50 states and DC, 25 sit fully inside that band, the line runs through 26 more, and 0 sit outside it — and inside every split state, the same line runs on at county grain.
Fully inside zones 4–8
25 states
3 of 25 shown
State zone extents: USDA Plant Hardiness Zone Map (PHZM) 2023. A zone is a 10°F band of average annual extreme minimum temperature, so a state that splits the band contains the boundary — its own page draws the county line, and a parcel report resolves which side your land sits on.
What grows around Clematis
Growing guides for clematis
Good to know
One caution for pet owners — clematis is toxic to dogs and cats (mild severity). Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency. (Source: ASPCA.)
Clematis offers moderate value to bees and other pollinators. (Source: Pollinator Partnership.)
Your land is one point inside Clematis's range
This page resolves to the species. Your state page draws the county line, and a report reads the parcel — the soil pH, drainage, sun, and frost dates on your exact ground, which no species average can see.
See if Clematis will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether clematis actually takes — we score it against the real conditions at your address.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources analyzed in seconds
How we know this about Clematis
The figures above are cited per row, not per site: the pH band names this plant’s own source column, the three temperature figures each carry their own, and days-to-maturity cites the publication that actually lists it. All of it comes from the Growable Ground Plant Database — a compilation over FAO ECOCROP, USDA PLANTS, and university Extension sources, published openly with per-field provenance.
Grounded inUSDA PLANTS Database•ASPCA
Frequently asked questions
Can I grow Clematis in my zone?
Clematis grows in USDA hardiness zones 4 through 8. Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
When should you plant Clematis?
Time clematis to your own season rather than the calendar. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
What soil does Clematis need?
Specific pH data for clematis is pending. A soil test from your local Extension lab confirms what your site needs.
Does Clematis attract pollinators?
Yes — clematis's flowers are a solid nectar source for honeybees and native bees. (Source: Pollinator Partnership.)
Is Clematis safe for pets?
Clematis is toxic to dogs and cats with mild severity. Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency. (Source: ASPCA.)
Keep exploring Clematis
Clematis state by state
Every state clematis's zone reaches — 3 link straight to that state's clematis growing page; the rest open the state's full growing guide.