Eryngium 'Big Blue'

Eryngium 'Big Blue': Steel-Sculpted Brilliance

A true focal point in dry, sunny borders, Eryngium 'Big Blue' dazzles with intensely bright, steely blue flower cones surrounded by sharp-edged bracts in the same electric hue. Each spiny bloom rises on upright, silvery stems that shimmer in the sun, giving this drought-tolerant perennial a sculptural quality that commands attention. Its midsummer display attracts pollinators in swarms, offering both garden impact and ecological value. Long-lasting in bloom and equally striking dried, ‘Big Blue’ blends form and function with dramatic effect.

Plant Characteristics:

• Height: 60–80 cm
• Spread: 40–50 cm
• Flower Colour: Intense steel blue
• Flowering Period: July to September
• Foliage: Deeply lobed basal green leaves; silver-blue stems
• Sunlight Requirements: Full sun
• Soil Requirements: Dry to average, sharply drained soil; tolerates sand and gravel

Uses and Benefits: Ideal for xeriscaping, modern borders, gravel gardens, and pollinator pathways, 'Big Blue' delivers bold vertical accent and vivid colour in difficult conditions. It thrives in poor soils and full sun, offers excellent drought resistance, and provides nectar for bees and butterflies. Leave the seed heads standing into fall for architectural interest and winter texture.

Companion Plants: Combine Eryngium 'Big Blue' with Achillea 'Moonshine', Pennisetum 'Red Head', and Lavandula 'Phenomenal' to create a bold, textural planting with striking colour contrast and low water needs.

Care Instructions: Grow in full sun and well-drained soil. Avoid overly rich or wet conditions, which may cause flopping or root rot. Water moderately during establishment, then reduce. Deadhead for a tidier look or allow to stand for dried seed head appeal. Divide in early spring only if needed.

History: A standout selection bred for its unusually large blooms and saturated blue tones, 'Big Blue' is a garden-worthy refinement of species native to Europe and Asia. Loved by florists and designers for its long vase life and architectural shape.

Final Thoughts: With its metallic glow, sharp lines, and unmatched resilience, Eryngium 'Big Blue' is a sun-loving perennial that adds energy, structure, and pollinator support to any dry garden design.