Sea holly

Eryngium giganteum impresses with large silvery-blue flower heads and striking bracts that give the plant a sculptural appearance. As a biennial perennial, it often self-seeds and creates new flowering plants year after year. It thrives in sunny locations and is particularly suitable as a cut flower or dried flower.

Care/Water

Eryngium giganteum requires regular watering, especially during dry summers. Keep the soil lightly moist, but avoid waterlogging. Water preferably in the morning or evening to minimize evaporation.

Maintenance

Regularly remove faded flowers to keep the plant healthy and attractive. Cut back old or damaged shoots to encourage new growth. Light spring fertilization supports strong leaves and abundant blooms.

Location

Prefers sunny, sheltered locations. Ideal for borders, rock gardens, and containers. Soil should be well-drained, nutrient-rich, and humus-rich.

Tip

Mulching helps retain moisture and keep roots cool. Regularly check soil moisture for optimal plant health.

Eryngium giganteum is a spectacular perennial with silvery-blue, globe-shaped flower heads, enhancing beds and borders. It provides striking highlights and attracts pollinators such as bees.

The plant prefers sunny, well-drained locations and is relatively low-maintenance.