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Campanula incurva

Campanula incurva

Synonym(s) Campanula leutweinii
Common name bellflower
Family campanulaceae
Life cycle monocarpic perennial (Z6)
Flowers light blue or white (early summer)
Size 12"
Light sun-part shade
From seed germinate at room temperature with exposure to light
detailed seed-starting info below

The first time I grew this bellflower, native to Greece, I managed to raise just a single plant from seed, but it was worth the effort. In its second season, it first set a large number of interestingly shaped buds, that proceeded to open just about all at the same time, to reveal powder-blue flowers shaped like flared cups, all held upward to allow a peek inside the bells. According to online sources, it is monocarpic – which means it won't return the year after it flowers. That was true for our plant, and since I did not manage to collect seed, it expired from our garden for years. More recently, I traded for new seed, getting a better crop of plants. Those took three years before they decided to bloom, and the flowers turned out to be white. I will be sure to collect seed this time.

Campanula incurva
Campanula incurva
This is the only campanula I've grown that is evergreen in our climate. Still sporting last year's leaves in this early-April photo.

We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston.

Seed for this plant is included on my seed trade list

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Seed-starting details for this plant

  1. Seed from '10 trade. Baggy 70F with light (87%G, 6-9d)
    Baggy 35F (93%G, 5-7w)
  2. Same seed as above, cold-stored through summer. Baggy 70F with light (78%G, 7-12d)
  3. Same seed as above, cold-stored. Baggy 70F with light (75%G, 7-18d)
  4. Same seed as above, cold-stored. Baggy 70F with light (90%G, 6-14d)
  5. Same seed as above, cold-stored. Baggy 70F with light (90%G, 6-11d)

Apparently properly stored seed maintains high viability for years.

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