Species

1 other cultivar

‘Summer Snow’Summer Snow Sweet Autumn Clematis

vine

Mississippi River Sweet Autumn Clematis

Clematis terniflora 'Mississippi River'

Same species

Species

1 other cultivar

‘Summer Snow’Summer Snow Sweet Autumn Clematis

Essentials

At a Glance

Plant Type

Vine

Height

240 inches

Width

72 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Japan, China

Toxicity

Toxic to humans, dogs, cats, and horses if ingested

The Story

Plant Bio

Clematis terniflora 'Mississippi River' features fragrant white flowers and is known for vigorous growth. This cultivar is particularly noted for its exceptional fragrant flowers, making it a favorite for fragrant gardens.

Bloom Period:

EarlyLate

Uses & Benefits:

A stunning, fragrant climber that adds vertical interest and aroma to gardens.

Provides shade and privacy when trained on structures.

Supports pollinators like bees and butterflies with abundant flowers.

Planting

How to Grow

Select a sunny location with well-draining soil for planting.
Tuck seeds or cuttings into moist soil and keep consistently moist.
Provide a sturdy trellis or support for climbing growth.
Water regularly during the first growing season to establish roots.
Fertilize with a balanced fertilizer every 6 weeks during active growth.
Prune after flowering to encourage dense, vigorous growth.

Pro Tip

Use a layer of mulch to conserve moisture and suppress weeds around the base.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist but not waterlogged 🌱
Prune after flowering to maintain shape and promote new growth
Support with a sturdy trellis or arbor

Don't

Avoid overwatering to prevent root rot ❌
Do not prune in late fall or winter to avoid cutting off next season's buds
Avoid planting in heavy, poorly-draining soil

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Mulch
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vigorous climbing vine for trellises and arborsFragrant cover for fences and wallsElegant backdrop in mixed borders

Companion Plants

Hostas Daylilies Lavender Salvia Ferns

Multiply

Propagation Methods

Good to Know

Common Questions

Mississippi River Sweet Autumn Clematis questions

What zones can Mississippi River Sweet Autumn Clematis grow in?

Mississippi River Sweet Autumn Clematis is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Mississippi River Sweet Autumn Clematis deer resistant?

Yes — Mississippi River Sweet Autumn Clematis is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Mississippi River Sweet Autumn Clematis bloom?

Mississippi River Sweet Autumn Clematis typically blooms in late summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Mississippi River Sweet Autumn Clematis need full sun?

Mississippi River Sweet Autumn Clematis does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Mississippi River Sweet Autumn Clematis drought tolerant?

Yes — once established (usually after the first full season), Mississippi River Sweet Autumn Clematis handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.