Cerinthe major 'Purpurascens' Seeds

Cerinthe major 'Purpurascens' is a robust Hardy Annual (H3). Originating from the Mediterranean, it is biologically engineered to thrive in full sun and well-drained, often poor, soil. It possesses the prestigious RHS Award of Garden Merit, a mark of excellence for its reliable garden performance and unique architectural silhouette.

The "Shrimp" Morphology: Often referred to as the "Blue Shrimp Plant," its common name describes the distinctive arching habit of the flower heads. The bracts and flowers curl over in a graceful, decurved shape that mimics the tail of a shrimp, providing a sculptural quality rare in annual species.

Pollinator Obsession: True to its name "Honeywort," Cerinthe is a nectar powerhouse. It is one of the highest-rated plants for biodiversity, specifically attracting British bumblebees who will visit the drooping bells repeatedly from May through to August.

Cerinthe seeds are exceptionally large, resembling smooth black beads, making them easy to handle and sow with precision.

How to Sow:
Sow indoors from February to April, or direct sow outdoors in September for the earliest blooms the following spring. To improve germination rates, we recommend soaking the seeds in tepid water for 12 hours prior to sowing to soften the hard outer coating. Sow 1cm deep. Germination typically occurs within 7-14 days.

Where to Plant:
They demand full sun to develop their characteristic deep purple pigmentation; in shaded areas, the foliage will remain primarily green. They thrive in well-drained, average-to-poor soil. Once established, they are remarkably drought-tolerant, making them ideal for gravel gardens or Mediterranean-style borders.

Ongoing Care:
Cerinthe can become slightly top-heavy as the bracts fully develop. We recommend planting them in tight groups so they can lean on one another for support, or providing light twiggy sticks. They are enthusiastic self-seeders; if you allow the seeds to drop at the end of the season, you will likely receive a fresh generation of "free" plants the following spring.

The moody purple and silver tones of Cerinthe work spectacularly with available partners from our range:

• 🧡 Calendula 'Touch of Red': The Jewel Box Contrast. This is high-impact colour theory in action. The deep mahogany-red and burnished orange of 'Touch of Red' creates a dramatic contrast with the cool silver-blue of the Honeywort. Both are drought-tolerant, providing a long-season buffet for British bees.
• ☁️ Nigella 'Miss Jekyll Blue': The Textural Haze. If both are sown in autumn, they will flower together in late spring. The misty, sky-blue foliage of the Nigella provides a soft, ethereal backdrop to the bold, architectural succulent leaves of the Cerinthe, creating a professional-looking cool-toned display.

Direct sow in autumn for the earliest spring display, or in spring for a summer of architectural purple and blue interest.