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PlantFiles: Ringed Bellflower
Symphyandra hoffmannii

Family: Campanulaceae (kam-pan-yew-LAY-see-ee) (Info)
Genus: Symphyandra (sim-fee-AN-druh) (Info)
Species: hoffmannii (HOF-man-ee-eye) (Info)

2 members have or want this plant for trade.


12-18 in. (30-45 cm)
18-24 in. (45-60 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)

Sun Exposure:
Full Sun
Sun to Partial Shade

Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Mid Summer
Late Summer/Early Fall


Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
This plant is monocarpic

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
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

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By poppysue
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By Tomtom
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By altagardener
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No positives
2 neutrals
No negatives

Gardeners' Notes:

Neutral GardenShannon On Oct 25, 2004, GardenShannon from Seattle, WA wrote:

I bought this plant and left it in its original container because I wanted to plant it in my son's yard later in the year. That didn't happen right away because it was so dry and hot in NW USA this year. It did not grow any taller and did not bloom. Will tranplant it soon and see how it does when not confined.

Neutral cinemike On Aug 29, 2004, cinemike from CREZIERES
France (Zone 8a) wrote:

One thing of note in relation to this plant. It has a tap root that is quite fragile so great care should be exercised if transplanting... (I know to my cost... :o( )


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

Cornwall Bridge, Connecticut
Eveleth, Minnesota
Cincinnati, Ohio

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