How big does Serbian bellflower grow?

About 15 cm × 60 cm after ten years (height × width).

What soil does Serbian bellflower grow in?

It tolerates these soils: average garden soil, clay, sandy, calcareous.

Is Serbian bellflower hardy?

Hardy down to -40 °C (USDA zone 3, RHS H7). It gets through winter in every part of the country.

When does Serbian bellflower flower?

Flowering: May–September, purple, blue, white.

How much water does Serbian bellflower need?

Water need: medium. Drought tolerance: medium.

How much does Serbian bellflower cost?

It sells for roughly €3.50 to €3.90 in local shops, depending on size.

Serbian bellflower

Campanula poscharskyana

Serbian bellflower (Campanula poscharskyana) is a ground cover plant that reaches 15 cm × 60 cm after ten years. Light: full sun, part shade. Hardy down to -40 °C. Drought tolerance: medium. Sold in local shops from about €3.50.

Illustration of Serbian bellflower — An illustration of the typical shape of the mature plant, not a photo.

What it's good for, and what it isn't

A vigorous bellflower with trailing stems that are smothered in star-shaped lavender-blue flowers from late spring into summer, often blooming again in autumn after a trim. It is excellent on top of retaining walls, in the gaps of stone walls, beside steps and as an edging, in sun or part shade. It spreads quickly by runners and by seed, so keep it away from small, slow rock garden plants, which it will overrun.

Watch out for

Slugs and snails readily eat it, especially the fresh shoots in spring. It spreads strongly: it smothers weaker neighbours, roots into the joints of walls and paving and also self-seeds, so cut back its edges every year. Powdery mildew can appear in stuffy, dry spots. In Central Europe the foliage may scorch in full sun on hot summer afternoons, so give it part shade in such places.

Key facts

Light: Full sun, Part shade
Water need: Medium
Care: Low
Size after 10 years: 15 cm × 60 cm
Hardiness: down to -40 °C
Foliage: Semi-evergreen
Flowering: J F M A M J J A S O N D May–September, purple, blue, white

Group	Ground cover
Light	Full sun, Part shade
Size after 10 years	15 cm × 60 cm
Ultimate size	10–30 cm × 30–60 cm
Hardiness	down to -40 °C (USDA 3, RHS H7)
Soil	Average garden soil, Clay, Sandy, Calcareous
Foliage	Semi-evergreen
Flowering	May–September, purple, blue, white
Water need	Medium
Drought tolerance	Medium
Maintenance	Low
Root aggressiveness	Low
Suckering	no data
Spreading	High
Distance from buildings	no data
Distance from paving	no data
Litter	not typical
Planting distance	30 cm
For dogs	Non-toxic (uncertain)
For cats	Non-toxic (uncertain)
For children	Non-toxic (uncertain)
Typical price	from about €3.50

Toxicity data is for information only. If your pet or child has eaten a plant, contact a vet or a doctor.

Sizes and prices available

The same plant is sold as a small pot and as a specimen several metres tall, and the price follows. Prices are rounded and for guidance only.

Size	Typical price
size not stated	approx. €3.50 – €3.90

Frequently asked questions

Data updated: October 8, 2026 · How our data is made

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Serbian bellflower vs Carpathian bellflower Serbian bellflower vs Caucasian stonecrop Serbian bellflower vs Dalmatian bellflower

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