Eryngium amethystinum
amethyst eryngo
Flower Colors
Description
A semi-evergreen, clump-forming perennial to around 70cm tall forming a rosette of divided basal leaves. Egg-shaped to rounded, steel blue flowerheads to 2cm long are borne on upright, branching stems often also coloured a deep blue; each flowerhead is surrounded by spreading blue-silver bracts
Mature Height
1m
Mature Spread
0.5m
Plant Characteristics
Foliage
Deciduous
Growth Habit
Clumping
Growth Speed
Moderate · 0.3 m/yr
Soil Texture
ChalkLoamSand
Soil pH
AcidAlkalineNeutral
Soil Moisture
Well-drained
Hardiness (RHS)
H7
Hardiness (USDA)
Zones 3-8
Flowering Season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Key Features
Drought resistantCity and courtyard gardensCoastalGravel gardenPatio and container plantsArchitecturalCottage and informal gardenPrairie plantingCut flowersFlower borders and bedsBanks and slopes