Caucasian stonecrop and Serbian bellflower are often considered for the same spot in the garden (ground cover, flowers, pollinator friendly, container). The data below shows where they differ: size, hardiness, care, toxicity and price.
Sedum spurium 15 cm × 90 cm after 10 years
A low, succulent ground cover that quickly knits a dense mat with its rooting stems and is covered in pink, red or white starry flowers in summer,…
Campanula poscharskyana 15 cm × 60 cm after 10 years
A vigorous bellflower with trailing stems that are smothered in star-shaped lavender-blue flowers from late spring into summer, often blooming again…
Caucasian stonecrop grows larger: 15 cm × 90 cm after ten years, against 15 cm × 60 cm for Serbian bellflower.
Serbian bellflower is hardier: down to -40 °C, against -34 °C for Caucasian stonecrop.
Caucasian stonecrop tolerates drought better than Serbian bellflower.
Caucasian stonecrop needs less water than Serbian bellflower.
|
Feature
|
Caucasian stonecrop
|
Serbian bellflower
|
|---|---|---|
| Group | Ground cover | Ground cover |
| Size after 10 years | 15 cm × 90 cm | 15 cm × 60 cm |
| Ultimate size | 5–15 cm × 45–90 cm | 10–30 cm × 30–60 cm |
| Growth rate | Fast | Fast |
| Light | Full sun, Part shade | Full sun, Part shade |
| Soil | Average garden soil, Sandy, Calcareous | Average garden soil, Clay, Sandy, Calcareous |
| Hardiness | down to -34 °C (USDA 4, RHS H7) | down to -40 °C (USDA 3, RHS H7) |
| Foliage | Semi-evergreen | Semi-evergreen |
| Flowering | June–August, pink, red, white | May–September, purple, blue, white |
| Water need | Low | Medium |
| Drought tolerance | High | Medium |
| Maintenance | Low | Low |
| Planting distance | 30 cm | 30 cm |
| For dogs | no data | Non-toxic (uncertain) |
| For cats | no data | Non-toxic (uncertain) |
| For children | Mildly toxic (uncertain) | Non-toxic (uncertain) |
| Typical price | approx. HUF 1,700 | approx. HUF 1,400 |
Prices are rounded, indicative values. Toxicity data is for information only. If your pet or child has eaten a plant, contact a vet or a doctor. Data updated: October 13, 2026
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