Photo by Melody

PlantFiles: Siberian Bellflower, Bell Flower
Campanula sibirica

Family: Campanulaceae (kam-pan-yew-LAY-see-ee) (Info)
Genus: Campanula (kam-PAN-yoo-luh) (Info)
Species: sibirica (sy-BEER-ah-kuh) (Info)

4 members have or want this plant for trade.


12-18 in. (30-45 cm)

9-12 in. (22-30 cm)

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)

Sun Exposure:
Sun to Partial Shade

Unknown - Tell us

Bloom Color:

Bloom Time:
Late Spring/Early Summer
Mid Summer


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored

Click thumbnail
to view:

By LilyLover_UT
Thumbnail #1 of Campanula sibirica by LilyLover_UT

By Weezingreens
Thumbnail #2 of Campanula sibirica by Weezingreens

By LilyLover_UT
Thumbnail #3 of Campanula sibirica by LilyLover_UT


1 positive
No neutrals
2 negatives

Gardeners' Notes:

Negative rondawill22 On Oct 27, 2014, rondawill22 from Spokane, WA wrote:

Much like our friend in Bonner's Ferry, ID, in Spokane, WA this grows well and can be invasive. Grows in sunny as well as partial shade, in my iris, grapes, flower bed and yes it grows from a rhizome. You must pull it, dig it and control it or it will be everywhere. Or use it where it can fill a bare spot and treat it as if it a naturalized plant.

Negative claricemc On Oct 27, 2014, claricemc from Bonners Ferry, ID wrote:

My former neighbor soon after I moved here in '97 pointed to the pretty purple bell-shaped flower on my side of her fence and said she was afraid it was "night shade," a poisonous woodland flower here in northernmost Idaho. I took a sample to a Forest Service botanist and confirmed it was not Night Shade. Since it was beautiful and on my side, I continued to enjoy it. However, within a few years it was showing up all over my gardens. Each time it appeared where I didn't want it, I dug it up with my handy weeder, and next year it was even more prolific. I began to look at it as a weed now and was becoming frustrated. Last year, after 17 years of pulling and finding more the next season, I happened to be spading down deep to plant a peony bush in the midst of some of the purple flower plants, and found a long carrot-shaped root under the clump of purple flowers. Turns out those roots are deep and support many plants above them. Today I learned in this site what this mysterious flower is. I plan to transplant some of the unwanted roots to our English garden where my color scheme will accommodate it nicely. Also, Dave's site info says it will grow in partial shade, and the English garden is partially shaded. Thanks for the helpful information. I rated this plant negative because it's been so invasive here, but if it's invasive in the English garden, more power to it because I love the height, the delicate purple bell-shaped flowers and even the clump of heart-shaped, dark green leaves at the base of the stalk.

Positive Carmela2000 On Jul 2, 2013, Carmela2000 wrote:

I found out about this plant during a trip to Milford, Pennsylvania, to visit a historical site called "Grey Towers" which includes some of the prettiest gardens I've seen. On this occasion I took a picture of some pretty ground cover star-shaped flowers, blue-purple in color.


This plant has been said to grow in the following regions:

Bonners Ferry, Idaho
Cisne, Illinois
Sherwood, Oregon
Austin, Texas
Gilmer, Texas
Lorton, Virginia
Spokane, Washington

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