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Bloom calendar
Dalmatian Bellflower
Perennial species; mat-forming groundcover
At‑a‑glance
- Group/Class: Perennial species; mat-forming groundcover
- Height × spread: 3-6 in × 12-24 in (8-15 cm × 30-60 cm)
- Bloom window: May to July
- Color & flower form: Purple to violet-blue; star-lobed bells; single
- Fragrance: 0 none
- USDA hardiness: zones 4-8
- Breeder / Year / Origin: unknown
- Pet safety: safe
How it differs
- Much shorter and more trailing than typical border bellflowers
- Performs well in wall crevices and between stones
- Blooms heavily in late spring while many bellflowers start later
- Can spread aggressively under ideal moisture and light
Strengths
- Excellent groundcover and edger
- Cascades over walls and containers
- Good flowering in part shade
- Deer browsing is uncommon
Care in one minute
Light: full sun to part shade; choose part shade in hot-summer regions
Soil: average, well drained; do not allow soggy roots
Water: provide regular moisture; do not let dry out during bloom
Groom: shear lightly after main flush to tidy and encourage sporadic rebloom
Divide or trim spreading mats to keep within bounds
Watch‑outs
- Can run vigorously and self-seed in favorable sites
- Struggles in deep South heat and warm nights
- Needs consistent moisture but dislikes waterlogging
Best uses (tags)
Provenance note
Native to the Dalmatian Mountains of Croatia and nearby Herzegovina.
References
- Missouri Botanical Garden Plant Finder: Campanula portenschlagiana
- RHS: Campanula portenschlagiana
