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Balloon Flower
Platycodon grandiflorus. Balloon Flower has large, round flowers that look just like balloons before they bloom. Yet once open, they are graceful, saucer-shaped stars. Balloon Flower can be direct-sown outdoors or started indoors 4 to 8 weeks for transplant out after the last spring frost date. Well worth the wait, Balloon Flower will not flower until the second season but when it does flower, stand back! Its heavily flower-laden stems make perfect cutting flowers. They should be cut when 2 to 3 flowers open on an individual stem. Flame-sear each stem's cut-end before placing them in water to prevent wilting. Deer resistant. Perennial. Hardiness zones: 3-8. Summer flowering. Height: 18" to 24".
Average seed life: 2 to 3 years.
Average seed life: 2 to 3 years.
Gardening Tips
Balloon Flower Sowing Instructions
Planting Depth:0”
Seed Spacing:6”-8”
Plant Spacing:12”-18”
Days to Germination:10-15 days
Germination Temperature:65°-75°F
Platycodon grandiflorus. Platycodon can be direct-sown outdoors or started indoors 4 to 8 weeks before transplanting outside after the threat of frost has passed. Prepare planting site in garden in full to partial sunlight with rich, well-draining soil. Sow seeds on top of soil, leaving seeds uncovered but pressed firmly onto the soil surface, as light aids germination. Provide even moisture and strong light during germination. Harden off the seedlings by gradually acclimating them outside. Thin or transplant the seedlings 12" to 18" apart. It will not flower until its second year, but once it does, stand back! Its heavily flower-laden stems may need staking. This blue cut flower should be harvested when 2 to 3 flowers open on an individual stem. Flame-sear cut ends before putting in water. Summer flowering. Height: 18" to 24".
Shade Tolerance
Planting Depth:0”
Seed Spacing:6”-8”
Plant Spacing:12”-18”
Days to Germination:10-15 days
Germination Temperature:65°-75°F
Platycodon grandiflorus. Platycodon can be direct-sown outdoors or started indoors 4 to 8 weeks before transplanting outside after the threat of frost has passed. Prepare planting site in garden in full to partial sunlight with rich, well-draining soil. Sow seeds on top of soil, leaving seeds uncovered but pressed firmly onto the soil surface, as light aids germination. Provide even moisture and strong light during germination. Harden off the seedlings by gradually acclimating them outside. Thin or transplant the seedlings 12" to 18" apart. It will not flower until its second year, but once it does, stand back! Its heavily flower-laden stems may need staking. This blue cut flower should be harvested when 2 to 3 flowers open on an individual stem. Flame-sear cut ends before putting in water. Summer flowering. Height: 18" to 24".
Shade Tolerance
