Campanula Species, Canterbury Bells, Cups and Saucers

Campanulamedium var. calycanthema

Family
Campanulaceae (kam-pan-yew-LAY-see-ee)
Genus
Campanula (kam-PAN-yoo-luh)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Height
24-36 in. (60-90 cm)
Spacing
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 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)
Danger
N/A
Bloom Color
Pink
Dark Blue
Medium Purple
White/Near White
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Biennials
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Can be grown as an annual
Bloom Characteristics
Flowers are good for cutting
Bloom Size
Other details
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
From seed; direct sow outdoors in fall
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Atascadero, California

Chowchilla, California

Citrus Heights, California

Duarte, California

Elk Grove, California

Grass Valley, California

Los Angeles, California

San Anselmo, California

San Diego, California

Canon City, Colorado

Cumming, Georgia

Boise, Idaho

Libertyville, Illinois

Greenville, Indiana

Barbourville, Kentucky

Dennis Port, Massachusetts

Bellaire, Michigan

Mason, Michigan

Minneapolis, Minnesota

Young America, Minnesota

Salem, New Hampshire

Port Norris, New Jersey

North Tonawanda, New York

Utica, New York

Mooresville, North Carolina

Geneva, Ohio

Reynoldsburg, Ohio

Beaverton, Oregon(12 reports)

Portland, Oregon

Albion, Pennsylvania

Pittsburgh, Pennsylvania

Austin, Texas

Gilmer, Texas

The Colony, Texas

Marion, Virginia

Kalama, Washington

Spokane, Washington

Chilton, Wisconsin

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Gardener's Notes:

11
positives
2
neutrals
0
negative
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D
The Colony, TX (Zone 8b) | March 2016 | positive

I live north of DFW area.... Planting mine in part sun. They are beautiful. I hope they make it here.

P
Missoula, MT | July 2011 | positive

This plant is a biennial in this area of Montana (Zone 4b), and the comment to mark them is very important. I almost pulled them out, th...Read More

D
D
Wheeling, WV | June 2007 | positive

Here in northern WV I tried to grow these from seed 2 years in a row with lousy results. Last fall, I dug up the one tiny plant that sur...Read More

D
New Richmond, WI | January 2007 | positive

I bought this as a seedling a few years ago at a roadside nursery. It was very beautiful. Only grew that one summer but was worth the effort.

D
D
(Zone 5b) | October 2006 | positive

Positive so far, but I only have seedlings I need to get in the ground before cold weather... 300 of them! I'm hoping to sell them as cut...Read More

P
Libertyville, IL | July 2006 | positive

i planted pink canterbury bells for the first time this spring. the first plant bloomed beautifully - the second isn't quite as colorful...Read More

C
Idaho Falls, ID | June 2006 | positive

Although a biennial in Zone 4 it is worth the effort. Large bells (cups) with equally impressive saucers in both deep purple and white. M...Read More

A
Pinckney, MI (Zone 5b) | August 2004 | positive

If you grow plants from seeds, as I did, make sure you clearly label and stake out the area where they are planted, or you'll end up with...Read More

F
San Diego, CA (Zone 10a) | July 2003 | positive

Garden fairy, aka DD, evidently planted these in a cottage garden mix she threw about. Didn't know what it was. After 2 years I told it "...Read More

P
Deal, NJ (Zone 7a) | July 2003 | positive

My experience with this plant was positive. Very easy to grow, (I'm in the Mid-Atlantic), didn't seem to mind the very acid soil near ev...Read More

R
Newberg, OR | February 2003 | positive

I planted these with painted daisies (pyrethrum) and the effect was really pleasing. This is a great color spot to provide blues among al...Read More

G
Newark, OH (Zone 5b) | May 2002 | neutral

Mine bloomed nicely last summer, but did not make it through our zone 5 winter.

P
Westbrook, ME (Zone 5a) | November 2000 | neutral

A classic cottage garden plant, this biennial bellflower has large showy blooms of pink, blue, purple, and white. There are varieties sol...Read More

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