Ten to fifteen-foot vines carry very large pale blue flowers, many over 4" across. On the interior of the bloom is a darker blue star.
Germination: 7-30 days, chipping seed coat or soaking seeds overnight aids in the germination.
Germination Temperature: Optimum soil temperatures 70-80ºF.
Seed Planting Depth: Sow 1/4” deep
Starting Indoors: Start indoors 3-4 weeks before the last frost. Provide 70-80ºF soil temperature. Using peat, cow, or paper pots can help with the stress of transplanting, they grow delicate roots and successful transplanting may be challenging. Transplant into the garden after the last frost.
Sowing Outdoors: After the last frost, when soil is over 70 ºF. Sow a few seeds every 8-12".
Growth Habit: Climbing
Spacing: 8-12” apart
Light Needs: Full sun
Soil Needs: Average to fertile, well-drained
Approximate days to flower from seed: 90 plus days. Blooms toward the end of summer, the middle of August until frost.
Uses: Climbs trellises, fences, and poles
Care: Water seedlings regularly until established. Amend the soil with compost before transplanting. Mulching helps retain moisture. Over-fertilizing can result in low to no flowers.