sea holly
Eryngium planum 'Blue Glitter'
Overview
Sea holly (Eryngium planum 'Blue Glitter') is an amazing plant that has striking blue-green foliage surrounded by thistle-like blooms. Its dusty blue flower heads will glitter in the bright sunlight and its evergreen foliage helps maintain a lively presence in your garden year-round. Stunning when arranged in mass plantings, the beautiful pastel flowers of sea holly are the perfect contrast to the silvery foliage. Highly drought tolerant, this plant likes well drained soils and does not require much attention. Plus, its long-lasting blooms make it an ideal choice for cut-flower arrangements. Sea holly is sure to add a touch of sparkle to your garden.
Care Guide
Watering
For Sea Holly (Eryngium planum 'Blue Glitter'), water enough to keep the soil moist but not soggy. Watering should be done once every 7-10 days and it's best to water in the morning. When you water Sea Holly, make sure to apply enough water so that the top inch or 2 of soil is moistened. Always be sure to check the soil's moisture to reassure that you are not over-watering.
Light
Sea holly (Eryngium planum 'Blue Glitter') requires full sun to thrive. It should be placed in an area that receives at least 6 hours of direct sunlight each day. During the summer months, it can tolerate a few hours of midday shade as well, but should have full sun for the remainder of the day. The plant will do best in a spot that is sheltered from strong winds. In winter months, the sea holly may require a few hours of morning sun and afternoon shade to protect it from the intense midday rays.
Temperature
Hardiness zone 5–8.
Pruning
Sea Holly (Eryngium planum 'Blue Glitter') should be pruned in the early spring, before new growth begins, in order to maintain its desired compact size and shape. Pruning should be done by removing any dead or dying stems and cutting back any overly long stems. This will help to stimulate new growth and promote a bushier plant. Prune back lightly, as heavily pruned specimens may be slow to recover, or may not recover at all.
Propagation
Division, Cutting, Seed Propagation, Layering Propagation
Related plants
Other plants you might like if you grow sea holly.
