Bonnet Bellflower (Codonopsis clematidea)

Common names:
Give a thumbs up Bonnet Bellflower
Give a thumbs up Asian Bellflower

General Plant Information (Edit)
Plant Habit: Herb/Forb
Sun Requirements: Partial or Dappled Shade
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Plant Height: 24 inches
Plant Spread: twining habit
Leaves: Malodorous
Other: when bruised, smells like a skunk
Flowers: Showy
Other: very interesting internal markings (nodding bells)
Flower Color: Green
Other: greenish blue, pale blue w/ black & orange zones inside of corolla's base
Bloom Size: 1"-2"
Flower Time: Summer
Propagation: Seeds: Depth to plant seed: barely covered
Suitable for wintersowing
Sow in situ
Start indoors
Can handle transplanting
Other info: easy to collect
Propagation: Other methods: Other: divide somewhat tuberous rootstocks
Containers: Not suitable for containers


Photo gallery:

Posted by jmorth (central Illinois) on Jan 5, 2012 3:21 AM

Garden placement situation should be considered before introduction as these plants can only be their best if the nodding bells are accessible to vision, growing through loose woodland shrubs (for support), and not on the beaten path. If brushed against, or stepped upon, smell of skunk is released.
Still, in my estimation worth it just to sample the visual delights of gazing into the bottom of the bell.

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Discussion Threads about this plant
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What did you do today? by Leftwood Dec 5, 2019 3:10 PM 3,282

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