Eryngium planum
Blue Sea Holly, False Sea Holly
Description
Eryngium planum is a perennial that quickly reaches 2' tall and wide. Evergreen leaves are heart-shaped and deep green. During the summer, thin wiry stems appear with tiny blue flowers on top, which look like thistles. These flowers can be dried for arrangements. This plant does well in hot and dry areas, even with high salt in soil. It does well in sandy, poor soil. It does best in full sun. It needs well draining soil and will not soggy soil in winter. Bees and butterflies love this plant. It does well in coastal areas. It has low water needs once it's established.
Plant Type
Perennial
Height Range
1-3'
Width Range
Under 1'
Flower Color
Blue
Flower Season
Summer, Fall
Leaf Color
Blue Green, Grey Green, Silver, White
Bark Color
n/a
Fruit Color
n/a
Fruit Season
n/a
Sun
Full
Water
Low
Growth Rate
Fast, Moderate
Soil Type
Sandy, Rocky
Soil Condition
Poor, Well-drained
Soil pH
Neutral, Basic
Adverse Factors
n/a
Design Styles
Seascape
Accenting Features
Showy Flowers
Seasonal Interest
Summer, Fall
Location Uses
Perennial Border
Special Uses
Filler
Attracts Wildlife
n/a
Water Saving Tip:
Mulching around plants helps retain water and improves the soil.