Purple Honeywort (Cerinthe major 'Purpurascens')

Purple Honeywort

Cerinthe major 'Purpurascens'

Its bracts glow like amethyst lanterns, holding nectar for pollinators. Herbaceous annual ornamental; common name: Purple Honeywort.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; full sun promotes the most vibrant bract color, while partial shade prevents scorching in hot climates
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Watering Water deeply when the top 2–3 cm of soil is completely dry; avoid overwatering to prevent root rot in heavy soils
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Temperature Tolerates light frosts down to 5°C; thrives in cool to temperate growing conditions
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Characteristics

  • Leaf: Succulent, blue-green, lanceolate leaves with a waxy, silvery coating
  • Flower: Tubular purple flowers nestled in vibrant, bell-shaped purple bracts
  • Stem: Sturdy, branching stems with a silvery-blue, glaucous finish
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Care Guide

Watering

Keep soil evenly moist during active growth; avoid waterlogging

Fertilization

Diluted balanced liquid feed every 2 weeks. Avoid over-fertilizing to prevent leggy, weak growth

Banana peel compost tea:Compost banana peels for 2 weeks, steep in water for 24 hours, dilute 1:20 for root drench to avoid nutrient burn
Pruning
  • Deadhead spent flower heads to encourage prolonged blooming
  • Trim leggy stems mid-season to maintain a compact, clumping shape
  • Remove yellow or damaged foliage to improve airflow and reduce pest risk
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic to cats; no reported toxicity

Humans: Non-toxic to humans; no known adverse health effects from ingestion or contact

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Garden Uses & Culture

Culture: Valued in pollinator gardens for attracting bees and butterflies; associated with Mediterranean coastal charm

Usage: Ornamental garden plant, cut flower for floral arrangements, and container specimen