vine

Sugarbowls

Clematis hirsutissima

The Story

Plant Bio

Clematis hirsutissima is an erect, non-climbing, herbaceous perennial. It is noted for its finely-divided, hairy (hirsute) foliage and solitary, nodding, bell-shaped, deep purple flowers.

This species is notable for its drought tolerance and ability to thrive in rocky or poor soils, making it an excellent choice for arid gardens and challenging locations.

Uses & Benefits:

Provides vertical interest with attractive flowers, ideal for garden walls and fences.

Offers quick coverage for unsightly structures or walls.

Supports pollinators like bees and hummingbirds, enhancing garden biodiversity.

Essentials

At a Glance

Plant Type

Vine

Height

18 inches

Width

15 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Low

Humidity

Average

Lifespan

Decades

Native To

North America

Toxicity

Toxic to humans and pets if ingested; can cause skin irritation.

Bloom period

Late spring – Late fall

In flower about 7 months of the year

Planting

How to Grow

Tuck seeds into moist soil in early spring.
Provide a trellis or support for climbing.
Water regularly to keep soil moist but not waterlogged.
Apply mulch around the base to retain moisture.
Prune after flowering to encourage new growth.
Monitor for pests and diseases monthly.

Pro Tip

Ensure the roots stay cool by mulching heavily around the base.

Keep It Thriving

Care Guide

Do

Tuck in support structures for climbing 🌱
Water consistently during dry spells
Prune after flowering to promote healthy growth
Mulch to keep roots cool

Don't

Avoid overwatering, which can cause root rot ❌
Don’t prune in late fall or winter
Avoid planting in overly shaded areas
Don’t neglect pest monitoring

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Divide
Fertilize
Plant
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vining on trellises in sunny bordersClimbing on fences for vertical interestDecorative cover for garden walls

Companion Plants

Hostas Daylilies Lavender Ferns Sedum

Multiply

Propagation Methods

Good to Know

Common Questions

Sugarbowls questions

What zones can Sugarbowls grow in?

Sugarbowls is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Sugarbowls deer resistant?

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

When does Sugarbowls bloom?

Sugarbowls typically blooms in late spring through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Sugarbowls need full sun?

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

Is Sugarbowls drought tolerant?

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