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Eryngium planum 'Blaukappe'

Blue Cap Sea Holly

Sea Holly

Comments

Unusual and show-stopping prickly steel-blue flowers with darker blue stems, thistle-like; tolerates hot dry sites; attractive to butterflies; pair up with softer textured plants, beautiful in dried arrangements

Description

Unusual and show-stopping prickly steel-blue flowers with darker blue stems, thistle-like; tolerates hot dry sites; attractive to butterflies; pair up with softer textured plants, beautiful in dried arrangements

Landscape Attributes

Blue Cap Sea Holly is an herbaceous perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This plant will require occasional maintenance and upkeep, and is best cleaned up in early spring before it resumes active growth for the season. It is a good choice for attracting butterflies to your yard. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

Blue Cap Sea Holly is recommended for the following landscape applications;

Mass Planting;Hedges/Screening;General Garden Use

Planting & Growing

Blue Cap Sea Holly will grow to be about 24 inches tall at maturity extending to 3 feet tall with the flowers, with a spread of 18 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 15 inches apart. It tends to be leggy, with a typical clearance of 1 foot from the ground, and should be underplanted with lower-growing perennials. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 years. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!

Light Requirement:

full sun

full sun

Moisture:

dry to average

Cold Hardy to Zone:

4b

Height(inches):

Spread:

Soil pH:

Soil Type:

24 inches (3 feet with the flowers)

18 inches

alkaline

poor

Deer Resistant:

false

Fall Color

Members of:

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