How to Grow Bellflower

Campanula Germination Information

Campanula is the botanical name for Bellflower
Campanula Seed Germination How to Sow Campanula:
Annual:
  • Sow indoors 6 to 8 weeks before planting outdoors and maintain a temperature of 68-70° F within the medium during germination which takes 10-14 days
  • Leave seeds uncovered
  • When sowing seed outdoors, we recommend a maximum planting depth of 4X the width of the seed

Biennial/Perennial:
  • Sow outdoors in late spring or early summer for blooms the following year
  • Sow indoors in the same way as annual forms
  • Germination takes 14-21 days
  • When sowing seed outdoors, we recommend a maximum planting depth of 4X the width of the seed

How to Grow Campanula:
Spacing: Set plants 4-18 inch apart depending upon the species

Soil:  Soil needs to be rich, moist, well-drained and keep well-watered

Lighting:  Most will perform their best in full sun but (C. pesicifolia) and (C. rotundifolia) will perform well in partial shade

Appearance and Use:
Annual: C. medium blooms in 3 months from seed with pink and blue flowers on 2- foot plants.

Biennial: C. medium ‘Calycanthema’ (Cup and Saucer) is named for its flower shape. Zones 3 to 7.

Perennial: C. carpatica grows 8-18 inches tall with 11/2- to 2- inch blooms of violet-blue or white. C. glomerata ‘Superbra’ is showy with 1- inch deep violet blooms in dense cluster on a 2- foot plant. C persiciflolia (Peached Leaved Campanula) has 11/2- inch blue or white blooms in open, 2- foot racemes. C. rotundifolia (Blue Bells-of-Scotland) is the dandiest with 1-inch, bright blue blooms on wiry, 11/2-foot stems

About Campanula:
Pronunciation:  kam-pan’u-å
Lifecycle:  Biennial, Perennial, Annual
Origination: Campanulaceae; native to Asia and Europe
Common Name: Bellflower