
Campanulas, or bellflowers, are delicate clusters of bell-shaped blooms in shades of white, pink, blue and purple. With over 300 species, such as Canterbury Bell, Harebell and Bluebell, the campanula comes in all sizes--from dwarf to those that grow over 6 feet--and grows in temperate regions all across the globe. Bellflowers make excellent additions to rock gardens, flowerbeds and borders. They also can be planted in hanging baskets and containers indoors and out.
Choose a campanula hybrid that will fit in your indoor space and lighting capability. Campanulas range in size from dwarf to more than 6 feet tall.
Mix together 1 part potting soil, 1 part compost and 1 part water to create a slightly moistened bed for planting campanula seeds or starter plants.
Sow campanula seeds at a depth of 1/8 to 1/16 of an inch, and cover them lightly with surrounding potting mix, then mist the container with water to moisten the top layer of soil and set the seed.
Place the container in a location with full sunlight, and supplement the environment with growing lights during cloudy days and in the evenings. Maintain a temperature of 65 to 70 degrees during germination. Germination typically occurs within seven to 14 days.
Feed campanula with a light application of a water soluble 10-10-10 fertilizer upon initial planting. A diluted application (1 part fertilizer to 3 parts water) can be added once a month, if needed.
Water campanulas once or twice a week to keep the soil evenly moistened, but do not saturate the container.
Remove spent blooms as they die off to promote continuous blooming throughout the cycle. Once the end of the growth cycle is reached, cut back the plant, leaving at least 1 inch above the soil line, and allow it to regrow and begin the cycle again.
Things You Will Need
- Campanula seeds or starter plants
- Container
- Potting soil
- Compost
- 10-10-10 water soluble fertilizer
- Growing light
Tip
- Keep the campanula in a location that receives full sun, and supplement with growing lights during the entire growth process to ensure that the plant will get adequate sunlight needed to produce blooms.
Warning
- It may take one season before campanulas bloom, depending on soil and temperature conditions.
References
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