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Product Description
Bring vertical beauty and vibrant color to your garden with Purple Cathedral Bells (Cobaea Scandens) seeds, a fast-growing climber known for its bell-shaped purple flowers that attract hummingbirds and pollinators. These heirloom seeds are perfect for trellises, fences, pergolas, and container displays, offering low-maintenance, long-lasting blooms for home gardeners.
Plant Type: Annual or tender perennial climbing plant
Bloom Color: Deep purple, bell-shaped flowers
Growth Habit: Vigorous climber
Height: 8 – 12 feet (supports or trellis recommended)
Light Requirement: Full sun to partial shade
Soil Preference: Well-drained, fertile soil
Garden Use: Trellises, fences, pergolas, containers, and ornamental climbing displays
Seed Type: Open-pollinated, heirloom, non-GMO
Special Traits: Hummingbird-attracting, fast-growing, low-maintenance
Sowing Time: Sow indoors 8 – 10 weeks before the last frost or outdoors after frost risk has passed.
Seed Depth: Lightly cover seeds with 1/4 inch of soil; scarification or soaking overnight can improve germination.
Spacing: Space seedlings 12 – 18 inches apart; provide support for climbing.
Watering: Keep soil moist during germination; water moderately once seedlings are established.
Germination Period: 14 – 28 days under warm, bright conditions.
Maintenance: Provide trellis or support; prune lightly if necessary to maintain shape and encourage blooms.

Life Cycle
Annual climbing vine (perennial in warm climates)
Planting Season
Warm season
Growth Habit
Vigorous climbing vine with tendrils
Flavor Profile
Not applicable
Plant Characteristics
Large bell-shaped purple blooms with delicate green vines and lush foliage
Use
Trellises, fences, pergolas, hummingbird gardens
Growing Conditions
Rich, well-drained soils with strong support and sunlight
Harvest Advantages
Long blooming season with dramatic climbing display
Plant Resistance
Heat tolerant, adaptable, low maintenance
Scientific Name: Cobaea scandens
Seed Names
Purple Cathedral Bells Cobaea Scandens Seeds
Seed Type
Heirloom open-pollinated (GMO Free)
Purple Cathedral Bells, also known as Cup and Saucer Vine, is admired for its large bell-shaped blooms and vigorous climbing habit. Thriving in sunny garden spaces, this heirloom vine produces striking purple flowers that attract hummingbirds and pollinators. Its fast growth and ornamental beauty make it a stunning addition to home garden landscapes.
Light Requirement
Full sun to partial shade
Planting Depth
½ inch
Sowing Method
Start indoors 6–8 weeks before last frost or direct sow outdoors
Plant Spacing
24–36 inches
Days to Maturity
90–120 days
Soil Preparation
Soak seeds in warm water for 12–24 hours before sowing
Hardiness Zones
USDA 9–11
Water Needs
Moderate moisture; well-drained fertile soil
Planting Season
Spring / Early Summer
Seed Count
Recommended Coverage
100
Up to 20 sq ft
500
Up to 40 sq ft
1000
Up to 200 sq ft