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Korean Bellflower
Campanula takesimana

Family: Campanulaceae (kam-pan-yew-LAY-see-ee) (Info)
Genus: Campanula (kam-PAN-yoo-luh) (Info)
Species: takesimana (tak-ess-ih-MAH-nuh) (Info)

Category:

Perennials

Height:

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

Spacing:

24-36 in. (60-90 cm)

36-48 in. (90-120 cm)

Hardiness:

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)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Sun to Partial Shade

Danger:

N/A

Bloom Color:

Pale Pink

White/Near White

Bloom Time:

Mid Summer

Late Summer/Early Fall

Foliage:

Smooth-Textured

Shiny/Glossy-Textured

Other details:

May be a noxious weed or invasive

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:

Non-patented

Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

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

Regional

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

, (2 reports)

Juneau, Alaska

Palmer, Alaska

Ashdown, Arkansas

San Francisco, California

Augusta, Georgia

Des Plaines, Illinois

Mount Prospect, Illinois

Patriot, Indiana

Jamaica Plain, Massachusetts

Gold Hill, Oregon

Portland, Oregon

Kalama, Washington

show all

Gardeners' Notes:

1
positive
2
neutrals
3
negatives
RatingContent
Negative

On May 26, 2014, coriaceous from ROSLINDALE, MA wrote:

A pretty plant, but a terrible thug. Spreads quickly and aggressively by underground runners (rhizomes), and in some places by self-sowing. Capable of quickly taking over a bed. Grow this where it won't be a threat to valued perennials.

Like most campanulas, this species does not grow well where summer night temperatures often remain above 70F.

Negative

On May 26, 2014, Meredith79 from Southeastern, NH (Zone 5b) wrote:

I now regret planting this. It is completely taking over my bed by the road. I didn't think it would be able to do that in my sandy soil, especially in the harsh roadside conditions. I was wrong! Looks like I have a lot of digging to do. :(

Negative

On Jun 3, 2011, jrtinker from Palmer, AK (Zone 3b) wrote:

This is a striking plant whose floral beauty is countered by it's aggressive nature. It is a vigorous self-sower, and also spreads by underground runners. In a couple years it can take over vast territories.

Positive

On Mar 24, 2006, SW_gardener from (Zone 6a) wrote:

This plant will grow anywhere from what I've read. I've grown it in my back garden in full DRY SHADE and it grew and flowered. Last year I moved some to sunnier spots in clay soil and will see how they do. Over all... nice plant.

Neutral

On Jan 18, 2005, smiln32 from Oklahoma City, OK (Zone 7a) wrote:

Easily grown from seed. Native to Korea. Fast growing plant. Flowers are nodding, creamy colored and bell-shaped. Can be potentially invasive.

Neutral

On Nov 10, 2000, jody from MD &, VA (Zone 7b) wrote:

This species of Campanula forms large clumps and the flowering stems grow to about 3' tall. The flowers are long bell shaped and are white to lilac/pink outside, spotted with darker purple inside. I think it is very 'elegant' in appearance. Best cultivated in sun to part shade. Propagate by seed, division, or cuttings. Hardy zones 5-9.