Categories: Eryngium, New for 2025, Perennials

Eryngium ‘Magical Blue Lagoon’

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6+ plants

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Plant information

Plant Description

Eryngium ‘Magical Blue Lagoon’ is a stunning perennial that brings a vibrant pop of color to any garden. Its intense blue flower heads and spiky bracts create a bold, architectural presence, complemented by upright stems and textured green foliage. Blooming from midsummer to early autumn, this sea holly is a magnet for bees and butterflies, adding life and movement to sunny borders, gravel gardens, and mixed beds. Drought-tolerant and easy to maintain, it thrives in well-drained soil and is perfect for fresh or dried floral arrangements, making it a versatile and eye-catching addition to your garden.

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🌿 How to Care for Eryngium ‘Magical Blue Lagoon’

How much sun do Eryngium ‘Magical Blue Lagoon’ need?

Eryngium ‘Magical Blue Lagoon’ thrives in full sun—around six hours a day. While it can tolerate light shade, you’ll get the best flowering in bright, open spots.

What type of soil is best for Eryngium ‘Magical Blue Lagoon’?

Eryngium ‘Magical Blue Lagoon’ prefers well-drained soil, ideally sandy or chalky. Rich or heavy soils can cause the plant to flop and reduce flower production.

How often should I water Eryngium ‘Magical Blue Lagoon’?

Water well during the first growing season to help it establish. Once settled, Eryngium ‘Magical Blue Lagoon’ is drought-tolerant and rarely needs extra water unless it’s extremely dry.

Do i need to feed Eryngium ‘Magical Blue Lagoon’?

Eryngium ‘Magical Blue Lagoon’ doesn’t require much at all. In fact, too much fertiliser—especially nitrogen—can lead to more leaves and fewer flowers. A light feed in spring is plenty, if needed.

Should I deadhead or cut back Eryngium ‘Magical Blue Lagoon’?

Yes—regularly remove faded flowers from Eryngium ‘Magical Blue Lagoon’ to encourage more blooms and stop self-seeding. You can cut the plant back in autumn or early spring to tidy it up and boost new growth.

When should I divide or propagate Eryngium ‘Magical Blue Lagoon’?

Divide Eryngium ‘Magical Blue Lagoon’ into clumps every 3 to 5 years in spring or autumn to keep them healthy and vigorous. You can also take soft cuttings in spring.

Are Eryngium ‘Magical Blue Lagoon’ drought-hardy?

Yes, Eryngium ‘Magical Blue Lagoon’is drought handy. Once it’s established, it copes brilliantly in dry conditions, making it perfect for sunny borders and gravel gardens.

What pests or diseases affect Eryngium ‘Magical Blue Lagoon’?

Eryngium ‘Magical Blue Lagoon’ is generally low-maintenance, but it can occasionally suffer from aphids or powdery mildew—especially in humid or overcrowded spots. Good airflow and spacing usually prevent problems.

Eryngium ‘Magical Blue Lagoon’

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🌿 How to Care for Eryngium ‘Magical Blue Lagoon’

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