- 1). Allow mature campanulas to go to seed in late summer. They will produce pods that contain three seeds apiece. Break the pods open when they become dry and brittle. Collect the seeds, put them in a paper envelope, and store in a cool, dry place for the winter.
- 2). Sow campanula seeds directly into the garden when all danger of frost is past and the soil is warm, usually mid-spring. Pick a sunny spot and scatter the tiny seeds on the ground, and sprinkle water on them if the ground is dry. Do not cover seeds with soil, because they need light and air to germinate. Thin seedlings to 12 inches apart when they sprout in 14 days or so.
- 3). Allow campanulas to self-sow if you prefer to let nature take its course. Watch for seedlings and thin them when they appear, as in Step 2.
- 4). Propagate by division every three to four years, after spring blooming. Put on gloves and dig a garden spade into the center of the plant, effectively cutting it in half. Dig one half out, and check to see that you've gotten a healthy amount of the rhizome, or root. It should be firm and sprouting from several areas on the root.
- 5). Replant divided campanulas 12 to 18 inches apart, or pot divided plants and give to friends or neighbors.
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