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botanical name:
Eryngium maritimum
Eryngium maritimum © Deeproot Plant Base
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common name:  Sea holly
family:  Apiaceae
characteristics: perennial, evergreen
height: 0.60m
width: 1.00m
growth rate: medium
growth habit: bushy
leaf colour: blue-green
flower colour: blue
stem/bark: blue-green
main season: Summer
edible symbol edible
medicinal symbol medicinal
aspect: full sun
conditions: dry soil, moist soil, sandy soil, coastal
preferred soil pH: neutral-alkaline
minimum temp: -12°C
USDA zone: 7 to 10
description:
Spiny, stiffly branching perennial with thick wavy, lobed glaucous blue-green leaves, the upper leaves often encircling the stem. Tight rounded heads of small blue flowers, with a ruff of leaf-like spiny bracts. Develops very deep roots enabling it to survive tough coastal conditions.

cultivation:
Very sharply drained sandy or gravely soil in full sun. Tolerant of heat, drought and salt. Grows best in exposed coastal situations.

propagation:
From seed.

usage:
Coastal gardens or similar situations.
The roots and young shoots are edible and also used as a medicinal herb, particularly for the treatment of prostate and urinary problems.

other notes:
Characteristic wildflower of the seashore and locally common on sandy and shingle beaches and dunes. Native to many parts of coastal Britain.
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