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PlantFiles: Canterbury Bells
Campanula medium var. calycanthema

 
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Family: Campanulaceae (kam-pan-yew-LAY-see-ee) (Info)
Genus: Campanula (kam-PAN-yoo-luh) (Info)
Species: medium var. calycanthema

One vendor has this plant for sale.

20 members have or want this plant for trade.

Category:
Biennials

Height:
24-36 in. (60-90 cm)

Spacing:
9-12 in. (22-30 cm)

Hardiness:
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)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)

Sun Exposure:
Full Sun

Danger:
Unknown - Tell us

Bloom Color:
Pink
Medium Blue
Purple
White/Near White

Bloom Time:
Late Spring/Early Summer

Foliage:
Herbaceous

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

Soil pH requirements:
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

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There are a total of 27 photos.
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Profile:

12 positives
3 neutrals
No negatives

Gardeners' Notes:

RatingAuthorComment
Positive diwill On Jun 11, 2007, diwill from Wheeling, WV wrote:

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 survived summer, put it in a pot in the basement for the winter (with occasional grow-light and water). I brought the sad looking remnant outside this Spring, sat it in full sun, and now I have a sprawling plant absolutely covered with large blooms. One side of the plant has cups AND saucers, the other side is producing only cups. Regardless, it is gorgeous and was worth the wait. Hopefully, will be able to harvest seeds and start over again next season.

Positive dannieaturner On Jan 13, 2007, dannieaturner from New Richmond, WI wrote:

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.

Positive darius On Oct 5, 2006, darius from So.Appalachian Mtns, VA (Zone 5b) wrote:

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 flowers next year. They were easy to germinate in trays although somewhat slow to grow to real leaves.

Positive phyllisjoy On Jul 25, 2006, phyllisjoy from Libertyville, IL wrote:

i planted pink canterbury bells for the first time this spring. the first plant bloomed beautifully - the second isn't quite as colorful (heat?) and the third on has a nice green base, but no sign of an flower stalks coming yet. will i be able to save the seed pods in the same way i save hollyhock seeds and plant them indoors next march?

Positive cartdog On Jun 18, 2006, cartdog from Idaho Falls, ID wrote:

Although a biennial in Zone 4 it is worth the effort. Large bells (cups) with equally impressive saucers in both deep purple and white. My plants are very vigorous, with up to 20 prolific stems per plant. They make impressive cut flowers. These flowers seem more robust than the regular canterbury bells (without the saucer), as I have both currently in my garden.

Positive Gabrielle On Jun 6, 2006, Gabrielle from Washington, IL (Zone 5a) wrote:

Large, beautiful bell shaped flowers. It does not have the "saucer" like some Cup and Saucer flowers do. Takes a fair amount of shade.

Light aids germination of seeds.

Positive AnnaCount On Aug 29, 2004, AnnaCount from Pinckney, MI (Zone 5b) wrote:

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 'surprise plants' like I did!

For the longest time I remained puzzled about these plants, and the flower pods seemed to take forever to open. The stem was 3' tall and covered with leaves and mystery bloom pods, and my curiosity nearly killed me. When they did finally open in early June, the blooms were spectacular!

It is now the end of August, and there are still some blooms opening on these plants! And bells cut off at the stem and kept in a vase last for weeks, as long as the water is changed daily.

Positive frogsrus On Jul 13, 2003, frogsrus from San Diego, CA (Zone 10a) wrote:

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 "bloom or be removed." Low and behold, 4 colors and all beautious. Query. Can I move them? The grand design did not include them where they are currently residing.

Positive PurplePansies On Jul 9, 2003, PurplePansies from Deal, NJ (Zone 7a) wrote:

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 evergreen shrubs, seemed to thrive in it! Very pretty. They were shorter than I expected, but required no special care, (except staking some), no diseases or bugs, and they germinated quickly from seed.

Positive sodakine On Jun 1, 2003, sodakine from Duarte, CA wrote:

I was amazed to see how long the flowers lasted out in the Southern California sun. I waited 10 days for more flowers to bloom before I took a picture, and I only had to deadhead 5 or 6 flowers. Wow!

Positive redsam1942 On Feb 26, 2003, redsam1942 from Newberg, OR wrote:

I planted these with painted daisies (pyrethrum) and the effect was really pleasing. This is a great color spot to provide blues among all the pastels in most gardens.

Positive Evert On Jan 28, 2003, Evert from Espoo
Finland (Zone 4b) wrote:

Very pretty biennial plant, I grew mine from seeds. It bloomed twice and produced big pods which had seeds I think, but they had dropped out, when I tried to pick them, there were somekind of small sharp needles that stung me. So wear gloves if you try to collect them..

I sowed mine just outdoors, I bought a cheap packet of the seeds and I spread the seeds on top of the soil on a small shady area. They sprouted and I got many seedlings which from about 8 survived. I replanted them to half-shady area and next Spring they were still alive :D One bloomed. Other probably will bloom next summer.

Neutral gardenwife On May 1, 2002, gardenwife from Newark, OH (Zone 5b) wrote:

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

Neutral lantana On Jan 4, 2001, lantana from (Zone 7a) wrote:

Grows in Heat Zones 9-1.

Neutral poppysue On Nov 8, 2000, poppysue from Westbrook, ME (Zone 5a) wrote:

A classic cottage garden plant, this biennial bellflower has large showy blooms of pink, blue, purple, and white. There are varieties sold now that claim they can be grown as an annual but typically they are grown as a biennial. The first year they form a rosette of deep green foliage and in the second year they send up multiple stems with 3-inch cup shaped blooms. A native of southern Europe, they grow 2 – 4 feet tall and are hardy in zones 4-10.

Regional...

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

Chowchilla, California
Citrus Heights, California
Duarte, California
Elk Grove, California
Gilroy, California
Los Angeles, California
San Diego, California
Canon City, Colorado
Cumming, Georgia
Libertyville, Illinois
Greenville, Indiana
Dennis Port, Massachusetts
Bellaire, Michigan
Mason, Michigan
Young America, Minnesota
Salem, New Hampshire
Port Norris, New Jersey
Utica, New York
Mooresville, North Carolina
Reynoldsburg, Ohio
Beaverton, Oregon
Portland, Oregon
Albion, Pennsylvania
Marion, Virginia
Kalama, Washington



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