Clematis plant photo (Clematis spp.)
Photo: Jim Morefield · CC BY 4.0
vine
Updated May 2026·Northern Hemisphere temperate zones

Clematis

Clematis spp.

Called the "queen of vines" — with 300+ species and 4,000+ cultivars producing flowers from 1 to 10 inches across, clematis offers more variety than any other climbing plant.

USDA Zones
4-9
Sun
full sun
Water
moderate
Mature Size
6-20 ft long
Growth Rate
moderate
Family
Ranunculaceae
Care guide

How to care for clematis

Give clematis "feet in shade, head in sun" — mulch heavily or plant a low-growing perennial at the base to keep roots cool. Know your pruning group (1, 2, or 3) — wrong-timed pruning eliminates a season of flowers.

Garden uses & design ideas

Best garden use

Give it a trellis, arbor, fence, or wall where vertical growth can soften hard edges without crowding nearby plants.

Pair it with

Climbing roses, Boxwood, Lavender make easy companion choices because they share similar light, water, or visual texture needs.

Layout tip

Match it with full sun exposure, place it in a moderate-water bed where soil can stay evenly damp but not soggy, and check USDA zones 4-9 before planting. Use the garden planner to test spacing around its mature size: 6-20 ft long.

Gardener note — Double-check local invasive, edible, and toxicity guidance with your county extension office before planting around pets, children, or natural areas.

Companion plants

Clematis grows well alongside these — similar light, water, and texture needs.

Common pests & problems

clematis wiltslugs (on young growth)aphids

Where it grows best

Native to Northern Hemisphere temperate zones; thrives in USDA hardiness zones 4-9.

Frequently asked about clematis

What USDA zones does Clematis grow in?+

Clematis is hardy in USDA zones 4-9. Outside these zones, it can usually be grown indoors or as a seasonal annual.

How much sun does Clematis need?+

Clematis prefers full sun. Place it where it gets that light most of the day for best growth and flowering.

How often should I water Clematis?+

Clematis has moderate water needs. Keep soil consistently moist but not soggy. Give clematis "feet in shade, head in sun" — mulch heavily or plant a low-growing perennial at the base to keep roots cool. Know your pruning group (1, 2, or 3) — wrong-timed pruning eliminates a season of flowers.

How big does Clematis get?+

Clematis reaches a mature size of 6-20 ft long. Growth rate is moderate, so plan spacing accordingly when planting.

What plants grow well with Clematis?+

Clematis pairs well with Climbing roses, Boxwood, Lavender, Peony, Hosta. These companions share similar care requirements and don't compete aggressively for resources.

What pests affect Clematis?+

Common Clematis problems include clematis wilt; slugs (on young growth); aphids. Catching early signs in routine inspection prevents most damage.

When does Clematis bloom?+

Clematis blooms in spring to fall (depends on group) in purple, pink, white, red, blue, yellow. Deadheading spent flowers (where applicable) often encourages a longer bloom window.

✦ Free 3D garden designer

Design a garden with clematis in minutes

Drag plants into a 3D space, walk through it, or upload a photo and let AI redesign it. Test spacing around its mature size before you plant.

More plants to design with

Pair well with clematis or suit the same spot.

All 200 plants →

Not sure what to plant where?

Answer 3 quick questions and get a free plant & design plan matched to your space, light, and style.

Get your free garden plan →