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Eryngium amethystinum

Sea holly

Garden

Wishlist

  • Eryngium amethystinum | Copyright Greenplantswap 2017

Features

  • BloomsJuly to August
  • Height0.6m to 0.8m
  • Spread0.3m to 0.65m
  • Growth HabitClump
  • Flower ColourDeep blue, purple
  • Leaf ColourMid green grey

Description

Eryngium amethystinum (Sea holly). This is an upright perennial, It is grown for its highly ornamental deep blue then purple flower heads. The flower heads are surrounded by spiny bracts that are good for a dried arrangement.

Characteristics

Perennial, Deciduous or Evergreen, Shrub or Herbaceous

Other common names

Amethyst eryngium

Origin

Italy and C. Europe

Interest and use

Ornamental, foliage, cutting bed, dried arrangements. Suitable for coastal conditions.

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  • Eryngium amethystinum | Copyright Greenplantswap 2017

Needs

  • LightFull sun
  • HardinessFully hardy (min -15°C)
  • SoilWell drained, Fertile, Sandy
  • Soil pH7.0
  • WaterDry

Cultivation

They will tolerate dry, sandy conditions with a salt spray. Grow in full sun it will bring out the best flower colour.

Propagation

Propagate species from fresh seed; selected forms by root cuttings in winter or by division in spring.

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