How to grow Cerinthe Seeds
Cerinthe, often called Honeywort, is a striking ornamental plant grown for its blue-green foliage and nodding purple-blue bracts that attract bees and pollinators throughout the flowering season. It grows best in full sun to partial shade and prefers light, well-drained soil.
Sowing Cerinthe Seeds
In mild climates, sow directly outdoors in autumn or early spring. In colder climates, start seeds indoors 4–6 weeks before the last frost. Sow seeds about 1 cm deep and keep the soil lightly moist at around 15–20°C.
Germination & Spacing
Germination usually takes 7–21 days. Seedlings establish quickly and should be spaced around 30–45 cm apart to allow room for branching, airflow, and strong plant development.
Planting & Garden Use
Cerinthe performs especially well in Mediterranean-style gardens, cottage gardens, gravel gardens, and naturalistic planting schemes. Its unusual colouring combines beautifully with ornamental grasses and other pollinator-friendly flowers.
Care Tips
Once established, Cerinthe is relatively drought-tolerant and thrives in warm, sunny conditions with moderate watering. Avoid overly rich soil or excessive feeding, as this can reduce flowering. Water young plants regularly while establishing, then reduce watering once growth is strong.
Cerinthe often self-seeds gently in suitable conditions, creating relaxed, natural drifts in the garden from year to year.