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Spacing: 12-15 in. (30-38 cm) 15-18 in. (38-45 cm) 18-24 in. (45-60 cm)
Hardiness: USDA Zone 3a: to -39.9 °C (-40 °F) USDA Zone 3b: to -37.2 °C (-35 °F) USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F)
Other details: Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods: By dividing the rootball From seed; direct sow outdoors in fall From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; sow indoors before last frost From seed; direct sow after last frost
Seed Collecting: Allow pods to dry on plant; break open to collect seeds
On Jun 25, 2012, darylmitchell from Saskatoon, SK (Zone 3a) wrote:
These are attractive and hardy perennials in my zone, dying back to the soil in winter and regrowing every spring. They readily self-seed and spread, but I wouldn't call them invasive - unwanted plants are easily removed. I have both white and blue varieties, which appear to have naturally hybridized and produced a pale blue variety. Mine thrive in an east exposure with morning sun and afternoon shade.
On Jul 17, 2011, Alice_Illinois from Palatine, IL wrote:
I planted three of these in a basically sunny well drained area and have watered them regularly. The blooms there when I bought the plants were beautiful; but since they died I notice the entire stalk dying. I have tried topping the dead growth; but there is no regeneration. Loved it when in bloom; can't figure out what to do or what went wrong.
On Jan 22, 2006, Katze from Minneapolis, MN (Zone 4a) wrote:
I am a beginner gardener and this is definitely a good plant for beginners. I purchased a bellflower plant from a local nursery and planted it in a location that receives full sun. Within 10 days, there were about 6 flowers had bloomed. It bloomed all summer long and was even blooming in October. Definitely an easy care plant since mine hasn't required constant watering.
I'm planning on adding more of these to our yard this year since they're so pretty and easy to take care of.
On Jul 5, 2005, northgrass from West Chazy, NY (Zone 4b) wrote:
Large bell shaped flowers on wiry stems with attractive foliage. They do spread quite a bit, although I have not found them invasive. Especially nice used at the base of daylilies or other tall plants.
On Mar 19, 2002, poppysue from Westbrook, ME (Zone 5a) wrote:
This campanula is a low grower and forms a 1-2 feet wide clump of heart shaped leaves. Its thin, wiry stems produce upturned, bell-shaped flowers for many weeks in summer. Colors range from white to deep purple. It prefers a fertile soil in sun or partial shade.
Regional...
This plant has been said to grow in the following regions:
Bear Creek, Alaska Juneau, Alaska Detroit, Michigan Pinconning, Michigan South Rockwood, Michigan Bloomington, Minnesota Minneapolis, Minnesota Florence, Mississippi Edison, New Jersey Penn Yan, New York Fremont, Ohio Bowmanville, Ontario Mount Hood Parkdale, Oregon Albrightsville, Pennsylvania Newtown Grant, Pennsylvania Lawrenceburg, Tennessee Sweetwater, Tennessee Angus, Texas Appleton, Wisconsin Mount Pleasant, Wisconsin Mukwonago, Wisconsin