Species

Clematis viticellaItalian Clematis

55 other cultivars

vine

Maria Therese Clematis

Clematis viticella 'Maria Therese'

The Story

Plant Bio

Clematis viticella 'Maria Therese' is a vigorous climbing plant with beautiful deep purple flowers.

This cultivar is known for its prolific flowering and ability to thrive in a range of soil types.

Uses & Benefits:

Vibrant and attractive climbing vine perfect for trellises and fences, adding vertical interest and color.

Provides privacy screening and windbreaks in garden settings.

Supports pollinators like bees and butterflies with its nectar-rich flowers.

SpeciesClematis viticellaItalian Clematis

Essentials

At a Glance

Plant Type

Vine

Height

120 inches

Width

36 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9, 10

Water

Moderate

Humidity

Average

Lifespan

Perennial

Native To

Europe and Asia

Toxicity

All parts are toxic if ingested; can cause skin irritation.

Bloom period

Mid-summer – Late summer

In flower about 2 months of the year

Planting

How to Grow

Tuck young vines into a trellis or fence for support within 2 weeks.
Mist cuttings regularly to maintain humidity during propagation.
Water deeply once a week during dry periods for healthy growth.
Fertilize with a balanced fertilizer in early spring and mid-summer.
Prune after flowering to shape and encourage new growth.
Mulch around roots to retain moisture and suppress weeds.

Pro Tip

Use a sturdy support structure for optimal flowering and vine health.

Keep It Thriving

Care Guide

Do

Provide full sun for best flowering 🌞
Water regularly to keep soil moist but not waterlogged 💧
Prune after flowering to promote vigorous growth
Feed with a balanced fertilizer in spring and summer
Mulch to conserve moisture and regulate soil temperature

Don't

Avoid overwatering to prevent root rot ❌
Don't prune in late fall or winter ❌
Avoid planting in overly shaded areas ❌
Refrain from using high-nitrogen fertilizers excessively ❌
Don't neglect support structures for climbing growth ❌

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vibrant garden trellisColorful border with climbing vinesDecorative privacy screen

Companion Plants

Lavender Roses SalviaHostas Daylilies

Multiply

Propagation Methods

Good to Know

Common Questions

Maria Therese Clematis questions

What zones can Maria Therese Clematis grow in?

Maria Therese Clematis is hardy in USDA Zones 4–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Maria Therese Clematis deer resistant?

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

When does Maria Therese Clematis bloom?

Maria Therese Clematis typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Maria Therese Clematis need full sun?

Maria Therese Clematis does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Maria Therese Clematis drought tolerant?

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