Overview
Eryngium alpinum 'Holden Blue' is a clump forming herbaceous perennial in the genus Eryngium, part of the Apiaceae family, with deciduous foliage. It typically grows around 0.5-1 metres tall and 0.1-0.5 metres wide, reaching full size in around 2-5 years. Eryngium alpinum 'Holden Blue' grows best in full sun, and tolerates most soils and any pH. It is drought resistant.
About the genus
Eryngium is a genus of flowering plants in the family Apiaceae. There are about 250 species. The genus has a cosmopolitan distribution, with centres of diversity in the western Mediterranean, South America and Mexico.
Wikipedia contributors, "Eryngium", CC BY-SA 4.0 — Eryngium
Growing conditions
Best soil and position for Eryngium
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- East-facing, South-facing, West-facing
- Exposure
- Exposed, Sheltered
Plant details
Eryngium alpinum 'Holden Blue' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.5-1 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
Frequently asked questions
Where is the best place to plant Eryngium alpinum 'Holden Blue'?
Eryngium alpinum 'Holden Blue' prefers full sun. It suits exposed and sheltered positions.
What soil does Eryngium alpinum 'Holden Blue' need?
Eryngium alpinum 'Holden Blue' is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays well-drained.
How big does Eryngium alpinum 'Holden Blue' grow?
Eryngium alpinum 'Holden Blue' reaches a height of 0.5-1 metres and a spread of 0.1-0.5 metres. It takes around 2-5 years to reach full size.
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More in the Eryngium genus
- Eryngium agavifoliumSea Holly
- Eryngium alpinumalpine eryngo
- Eryngium amethystinumamethyst eryngo
- Eryngium bromeliifoliumpineapple-leaved eryngo
- Eryngium campestrefield eryngo
- Eryngium eburneum
- Eryngium horridumSea Holly
- Eryngium maritimumsea eryngo
