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Trailing Bellflower

Campanula poscharskyana 'Blue Waterfall'

Campanula poscharskyana Blue Waterfall is a low-growing perennial with a wide, trailing habit that quickly fills gaps and softens hard edges.

At a glance

Hardiness

4 – 9

Light

Full sun, Partial shade

Mature size

15 – 30 cm tall × 60 – 90 cm wide

Garden uses & seasonal interest

Plant characteristics

Plant type

Herbaceous Perennial

Season of interest

June - August

Where it grows best

Water

Moist, well-drained soil

What to expect

Blooms

Jun–Aug

Good to know

Pollinator friendly
Drought tolerant
Mat-forming · Trailing

Perfect for

Ground coverEdging

Seasonal interest

How this plant changes through the year.

Spring

Foliage
green

Summer

Flowers
blue
Foliage
green

Fall

Flowers
blue
Foliage
green

Winter

Foliage
green

Care Information

Pruning
Cut the plant back after the first main flush of flowers. This helps encourage more blooms later and keeps the plant neat and full.
Soil
Chalk, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Pests
This plant is usually easy to grow, but slugs and snails may damage fresh growth. Spider mites can also appear during hot, dry periods.
Diseases
It can sometimes develop powdery mildew, rust, or leaf spot, especially where air circulation is poor. Good spacing and well-drained soil help reduce the risk.
Propagation
Divide established clumps in spring or early fall, or take basal cuttings in spring. Keep the new pieces evenly moist while they root, and plant them out once they are growing strongly.

Characteristics

Type
Herbaceous Perennial
Variegated
No
Family
Campanulaceae
Synonyms
Campanula poscharskyana 'Camgood'

Placement

Aspect
East, South, West