TALL BELLFLOWER, PEACH-LEAVED BELLFLOWER Campanula persicifolia
From late spring to midsummer the tall stems of wide-open bell flowers, which are cup-shaped and can be either lilac-blue or white, regularly appear, and are very good for cutting. It can flower sometimes as late as September in a cold year.
Height: 60-90cm, 2-3'
Location: Sun or part sun
Hardiness zones: 3-8
Seeds per pack: 20
Germination: As with many perennial seeds, these seeds benefit from a period of moist cold to help them begin to grow. This is done by giving them a cold 'winter' period (artificial or natural), and then a warming to simulate 'spring', and time to grow! Here's how this can be done:
Obtain a planting container that has holes in the bottom for excess water to drain. Place the seeds just under the surface of your growing medium, and water. Place them in a clear plastic bag (to retain moisture), and in a refrigerator for 4-6 weeks. Once the cold period is completed, place the container back at room temperature for them to germinate. Be sure to keep the soil moist during this entire germination period. Seedlings will sprout a few weeks, or occasionally several months, after the warming period.