Sea holly

Eryngium maritimum fascinates with steel-blue flowers and silvery-blue, leathery foliage that is perfectly adapted to dry coastal conditions. This exceptional sea holly brings Mediterranean flair to gravel gardens and sunny borders and impresses with its excellent drought tolerance. Its distinctive appearance makes it an unmistakable feature throughout the summer.

Care/Water

Eryngium maritimum requires moderate watering. The soil should always be lightly moist, avoiding waterlogging. Regular watering is important, especially during the first years, to encourage healthy root growth.

Maintenance

Regularly remove old flower heads and damaged leaves. Cut back dead or weak shoots to encourage new growth and strong blooms. Light spring fertilization supports healthy leaf development.

Location

Prefers sunny to partially shaded locations. Ideal for coastal, sandy, or rock gardens. Soil should be well-drained and nutrient-rich.

Tip

Use a mulch layer to retain moisture and protect roots from drying out. Check soil moisture regularly, especially during hot summer months.

Eryngium maritimum is a robust coastal perennial with steel-blue flower heads, ideal for borders and maritime gardens. It provides structural highlights and attracts pollinators.

The plant prefers sunny, sandy, well-drained soils and is drought-tolerant.