How big does Dalmatian bellflower grow?

About 15 cm × 50 cm after ten years (height × width). Its ultimate size is 8–20 cm × 30–60 cm.

What soil does Dalmatian bellflower grow in?

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

Is Dalmatian bellflower hardy?

Hardy down to -34 °C (USDA zone 4, RHS H7). It gets through winter in every part of the country.

When does Dalmatian bellflower flower?

Flowering: May–August, purple, blue.

How much water does Dalmatian bellflower need?

Water need: medium. Drought tolerance: medium.

How much does Dalmatian bellflower cost?

It sells for roughly €5 to €8.70 in local shops, depending on size.

Dalmatian bellflower

Campanula portenschlagiana

Dalmatian bellflower (Campanula portenschlagiana) is a ground cover plant that reaches 15 cm × 50 cm after ten years. Light: full sun, part shade. Hardy down to -34 °C. Drought tolerance: medium. Sold in local shops from about €5.

Illustration of Dalmatian 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 low bellflower that forms a tight cushion; from late spring to midsummer its small, ivy-like leaves almost disappear under violet-blue bells. It suits cracks in walls, joints between steps and paving, rock gardens and edging, and grows in sun or part shade as long as the soil drains well; in a hot, dry spot it is happier with midday shade. It spreads more slowly and tidily than the long-trailing Serbian bellflower, but in a good spot it still creeps on by seed and underground runners, so keep it away from small, weak neighbours.

Watch out for

Slugs and snails like it and mainly chew the fresh spring shoots and the flowers. In heavy, waterlogged soil it rots off in winter, and in scorching sun without watering it can burn and die back by late summer. Where it is happy it seeds itself into wall and paving cracks; shearing it after flowering keeps it dense and reduces self-seeding.

Key facts

Light: Full sun, Part shade
Water need: Medium
Care: Low
Size after 10 years: 15 cm × 50 cm
Hardiness: down to -34 °C
Foliage: Semi-evergreen
Flowering: J F M A M J J A S O N D May–August, purple, blue

Group	Ground cover
Light	Full sun, Part shade
Size after 10 years	15 cm × 50 cm
Ultimate size	8–20 cm × 30–60 cm
Hardiness	down to -34 °C (USDA 4, RHS H7)
Soil	Average garden soil, Sandy, Calcareous
Foliage	Semi-evergreen
Flowering	May–August, purple, blue
Water need	Medium
Drought tolerance	Medium
Maintenance	Low
Root aggressiveness	Low
Suckering	no data
Spreading	Medium
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 €5

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. €5 – €8.70

Frequently asked questions

Data updated: October 13, 2026 · How our data is made

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