Botanical Name: Campanula medium
Native: Italy and France
Hardiness: Biennial in USDA zones 5–8
Plant Dimensions: 18"–36" tall
Variety Information: 1"–2" long, bell-shaped flowers in purple, violet, blue, lavender, pink, and white blossoms cover tall flower spikes.
Exposure: Full sun to part shade. Afternoon shade is beneficial in hot summer areas.
Bloom Period: Spring to summer
Attributes: Attracts Pollinators, Cut Flower
When to Sow Outside: 2 to 4 weeks after your average last frost date, and/or 2 months before your average first frost date. Ideal soil temperature for germination is 60°-70°F.
When to Start Inside: 8 to 10 weeks before your average last frost date. May bloom first year if started indoors.
Days to Emerge: 15–20 days
Seed Depth: Press into surface
Seed Spacing: A group of 8 seeds every 6"–18"
Thinning: When 1" to 2" tall, thin to 1 every 6"–18"
Harvesting: For longest vase life, harvest in the morning, choosing stems where the top-most flowers have not opened, but show their final color.