Printer Friendly Version Print Plant Details

Eryngium amethystinum

More About Eryngium amethystinum

  • Thistle-like flowers have a large, intense blue, cone-like centre
  • Silvery bracts fan off the base of the cone
  • Upright stems are also blue
  • Leaves are thick, leathery, and green with silver veining
  • Bloom Time: Mid to late summer

Zone:

3

Height:

40-50 cm

Spread:

30-45 cm

Colour:

Blue
×

Amethyst Sea Holly Growing and Maintenance Tips

Grows best in a dry, sandy, well-drained soil, in full sun. Has a large taproot and once established, does not like to be moved. Eryngium may need staking and lose some of their colour if planted in soils that are too fertile or shady. 


Eryngium amethystinum Characteristics

Full Sun
Full Sun
Attracts Butterflies
Attracts Butterflies
Deer Resistant
Deer Resistant
Cut Flower/Foliage
Cut Flower/Foliage
Drought Tolerant
Drought Tolerant
Salt Tolerant
Salt Tolerant
Dried Flower/Foliage
Dried Flower/Foliage

Soil Moisture

Average to Dry Soils
Well-drained
Moist to Average

Growth Rate

Medium

Flowering Time

Lt. Sum-Fall
Summer

Habit

Clumping
Upright

Foliage Color

Gray
Green

 Suitable Substitutions for Eryngium amethystinum