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Eryngium alpinum ‘Superbum’

Bluetop sea holly

Garden

Wishlist

  • Eryngium alpinum ‘Superbum’ | Copyright Greenplantswap 2017

Features

  • BloomsJune to September
  • Height0.6m
  • Growth HabitStalked clump
  • Flower ColourDark blue
  • Leaf ColourBlue-green

Description

Eryngium alpinum ‘Superbum’ (Bluetop sea holly). Has spikes of large dark blue flowers in early summer and green leaves tinged blue.

Characteristics

Perennial, Deciduous or Evergreen, Shrub or Herbaceous

Other common names

Sea holly

Origin

Europe

Interest and use

Walls, rock garden, border, wildflower/meadow, dried arrangements. Summer interest. Suitable for coastal conditions.

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  • Eryngium alpinum ‘Superbum’ | Copyright Greenplantswap 2017

Needs

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

Cultivation

They will tolerate poor dry soil and salt spray. This species is more tolerant of shade and heavy soils with full sun.

Propagation

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

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