GIANT CLUSTERED BELLFLOWER Campanula glomerata
One of the most desired Bellflowers, this giant Bellflower concentrates it's flowers into one brilliant blue bunch, and repeats that bunch upwards along the stems, in layers of flowers! Like many Bellflowers, this plant is easy to grow, requires little care or watering, and can also be naturalized in grassy areas. Plants grow well in sun or half . A popular garden Bellflower for good reason!
Location: Sun or part
Type: Hardy perennial
Hardiness zones: 3-9, sometimes as cold as zone 2!
Seeds per pack: 20
Germination: As with many perennials, these seeds can benefit from a period of moist cold to help them 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 on the surface of your growing medium, and water. Place your container in a cold area (but not freezing, perhaps a refrigerator) for 4-6 weeks. Once the cold period is completed, place the container 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.
If you are planting your seeds in late winter or spring, these seeds can be planted outdoors while it is still cool out (once the ground is workable and unfrozen), to receive the cold period naturally in the garden. It is best to use this method only if you are able to keep the soil moist for the entire germination period. Be sure to label the planting area.