Eryngium planum
Blue Sea Holly
Description
Eryngium planum is a perennial. Stem leaves are blue tinted, with three to five lobes or sections. Rounded, 1/2-3/4 in. wide, light blue flower heads are surrounded by narrow blue-green bracts.
Sun
Full
Water
Medium
Growth Rate
Moderate
Soil Type
Sandy, Rocky
Soil Condition
Poor, Well-drained
Soil pH
Neutral, Basic
Adverse Factors
n/a
Check your irrigation controller once a month, and adjust as necessary.
Most plants require only one-third as much water in winter as they do in summer.