Sea Holly

Sea Holly

Eryngium zabelii 'Big Blue'

Big Blue Sea Holly is a vigorous hybrid with large, vivid blue flower heads surrounded by prominent spiny bracts, the most intensely coloured and largest-headed of the readily available sea holly selections.

  • Large, vivid blue flower heads with prominent spiny blue bracts, exceptionally striking
  • More intensely coloured and larger-headed than most Eryngium selections
  • Drought tolerant once established, excellent for hot, dry, well-drained sites
  • Excellent for cutting and drying; architectural presence in borders even out of bloom
Size
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Plant Characteristics

Sunlight
Full sun
Soil Moisture
Well-drained, Moist, Dry, Average
Drought Tolerant
✓
Hardiness Zone
4 – 4
Mature Height (meters)
0.5 – 0.75
Mature Spread (meters)
0.4 – 0.5
Growth Rate
Medium
Flower Colour
Blue
Foliage Colour
Blue-green
Bloom Time
SummerFall
Habit
Upright
Deer Resistant
✓
Rabbit Resistant
✓
Pollinator Friendly
✓
Landscape Uses
Border, Rock garden, Accent
Growing & Maintenance Tips
Drought tolerant, it grows best in an average to dry, well-drained soil, in full sun. It has a taproot, so once established, eryngium does not like to be disturbed.
Notes
Eryngium zabelliis a cross betweenE. alpinumand E. bourgatii.

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