Plant In |
Sun/Shade |
Planting Depth |
Space Seeds |
Days to Germinate |
Mature Height |
---|---|---|---|---|---|
March - April |
Full sun or |
3/4 inch |
4 - 6 inches |
7 - 10 days |
2 - 2.5 feet |
In spring, once all danger of frost is past, sow seed directly where plants are to grow in ordinary well-drained soil in full sun. In mild climates, Cerinthe can also be sown in fall for spring blooms. Poke the large seeds into the soil about 3⁄4 inch deep and 4 to 6 inches apart and firm soil gently over them.
TO START EARLY INDOORS
Start seeds indoors in 4 inch pots about 4 to 6 weeks before last frost date. Keep moist, but not soggy and provide a strong light source. Once seedlings are 4 to 6 inches tall, acclimate to outdoor conditions and transplant into a sunny spot, in well-drained garden soil. Thin or transplant seedlings 8 to 12 inches apart. Avoid disturbing seedling roots.
GROWING NOTES
Cerinthe prefers full sun, but can take dappled shade, although plants will be more rangy in habit. Be patient; plants are undistinguished until they come into bloom. By late spring, the dramatic blue bracts will turn more purple at the tips, then the clusters of purple bells trimmed with a white edge unfurl. Grow near pastel cleome or cosmos for an exciting color contrast.
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