General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Dry Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 7b -15 °C (5 °F) to -12.2 °C (10 °F)
Plant Height: 2 - 3 feet
Plant Spread: 8 - 12 inches
Leaves: Deciduous
Flowers: Showy
Flower Color: Blue
Bloom Size: 2"-3"
Flower Time: Summer
Late summer or early fall
Suitable Locations: Xeriscapic
Uses: Cut Flower
Dried Flower
Wildlife Attractant: Bees
Butterflies
Other Beneficial Insects
Propagation: Other methods: Division
Pollinators: Various insects
Awards and Recognitions: Other: RHS Plants for Pollinators

Image
Common names
  • Alpine Sea Holly
  • Eryngo
  • Alpine Eryngo

Photo Gallery
Location: Home
Date: 2022-04-20
Leaf shape, of this particular cultivar
Location: Toronto, Ontario
Date: 2020-09-21
Alpine Sea Holly (Eryngium alpinum 'Blue Star').
Location: Toronto, Ontario
Date: 2020-09-21
Alpine Sea Holly (Eryngium alpinum 'Blue Star') leaves.
Location: Toronto, Ontario
Date: 2020-09-21
Alpine Sea Holly (Eryngium alpinum 'Blue Star') seedling.
Plant Events from our members
ShawnSteve On April 1, 2022 Potted up
From other vendors.
ShawnSteve On April 11, 2021 Obtained plant
From vendor, American Meadow's. (Bare roots, which look quite pale in color. Need to try to avoid sunburning, of leaves.)
ShawnSteve On March 9, 2021 Miscellaneous Event
Ordered more roots. Just can't get enough of this one !
Still awaiting, upon delivery. Need to check on delivery status.
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