| Description | 'Clarks Heavenly Blue' Morning Glory (Ipomoea tricolor) is an annual vine that is a prolific bloomer of large blue flowers with a white throat. |
|---|---|
| Pronunciation | (eye-po-MEE-ah) |
| Plant Type | Annuals, Vines |
| Sunlight | full |
| Moisture | average |
| Soil & Site | average |
| Temperature | not frost tolerant |
| Flowers | large trumpet-shaped, clear deep sky blue with white throat |
| Leaves | green, heart-shaped |
| Stems | herbaceous twining vine |
| Dimensions | 10 plus feet |
| Maintenance | needs a support to climb on, morning glories have reseeded in my gardens |
| Propagation | seeds, helps to nick or soak the seeds, soaking has worked for me |
| Native Site | native to the tropical Americas |
| Cultivar Origin | Heavenly Blue and then Clarks Heavenly Blue have a confusing genealogy. One source reports Heavenly Blue Morning Glory was hybridized by Theodosia Burr Shepherd (1845-1906) circa the late 1800s (#273). Then Tovah Martin, in her classic book, 'Heirloom Flowers,' (#274), states that in the early 1600s, John Parkinson, a British apothecary and botanist, received a package of seeds, he grew them and called the plant Morning Glory Heavenly Blue. "Than A home gardener found this early-flowering version of sky blue morning glory with heart-shaped leaves growing in his garden and recognizing its importance, saved its seeds. It came to the attention of a Dutch seedsman who increased the stock and offered it under the name of 'Clarke's Early Heavenly Blue' in the 1930s" (www. select seeds.com) |
| Notes & Reference | #273- A History of Zinnias (Eric Grissell), #274-Heirloom Flowers: Vintage Flowers for Modern Gardens (Tovah Martin) |
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