Campanula, Hybrid Bellflower 'Sarastro'

Campanula

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
18-24 in. (45-60 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
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)
Danger
N/A
Bloom Color
Blue-Violet
Medium Purple
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Other Details
Category
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
This plant is attractive to bees, butterflies and/or birds
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
Propagation Methods
By dividing the rootball
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

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

Blackhawk-Camino Tassajara, California

Danville, California

Seymour, Connecticut

Winnetka, Illinois

Otho, Iowa

Roslindale, Massachusetts

Hopkins, Minnesota

Minneapolis, Minnesota

Nashua, New Hampshire

Raleigh, North Carolina

Cleveland, Ohio

Baker City, Oregon

Lexington, Virginia

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Gardener's Notes:

5
positives
1
neutral
0
negative
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B
Berlin Heights, OH | August 2016 | neutral

Purchased one of these this spring. It has not bloomed, but is spreading via root. It gets about 6 hours of full sun. Needs more sun, or...Read More

C
ROSLINDALE, MA | December 2014 | positive

One of the best garden bellflowers. Floriferous, long-blooming, vigorous, more heat tolerant than most bellflowers. Looks similar to 'Ken...Read More

H
Danville, CA | August 2011 | positive

I bought this mail order from Green Thumbs Galore and it is stunning in my garden. It kept blooming from early summer and now well into ...Read More

M
Hopkins, MN (Zone 4a) | June 2011 | positive

I must agree with the rave reviews. I planted this late last year and honestly didn't exect it to survive, let alone thrive the way it d...Read More

M
M
Baker City, OR (Zone 5b) | June 2005 | positive

I'm not positive on the variety of campanula that I have since I got a start from somebody else's garden. Mine is very hardy, no trouble,...Read More

L
Ithaca, NY (Zone 5b) | October 2004 | positive

I bought one of these plants in July 04' in full bloom from a local nursery. I almost hesitated because of the price ($13) but it was a ...Read More

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