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Field Eryngo

Eryngium campestre

Also listed as Eryngium vulgare

Also known as Eryngo, White-devil, Watling Street Thistle

herbaceous☀️ full sun💧 low water❄ Hardy: Zone 3a – Zone 9b

Climate Match for your location

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Field Eryngo is a drought-tolerant perennial with distinctive thistle-like blue-purple flowers and spiny blue-tinged bracts that bloom throughout summer. It thrives in poor, well-drained soils and is excellent for xeriscaping, pollinator gardens, and naturalistic settings.

Why grow it

Field Eryngo fills a specific niche in drought-tolerant perennial plantings where you need a tap-rooted plant that establishes without supplemental watering once mature. Compared to cultivated ornamental thistles, it requires genuinely poor soil and resists the nitrogen-rich amendments that favor weeds, making it useful for stabilizing marginal sites. The blue-tinged bracts persist longer than many similar species and attract a broad range of native pollinators, particularly smaller bees and beneficial insects.

Watch out for

Seedlings are slow to establish in their first season and benefit from consistent (not wet) conditions until they develop their taproot, so patience during the establishment year prevents unnecessary losses. The plant self-seeds readily in appropriate conditions, which can require management if you want to contain its spread within a specific area.

Overview

Form
Upright
Growth Rate
moderate
Size
1.5–3′ tall × 1–2′ wide
Dormancy
deciduous
Family
Apiaceae
dynamic accumulatorerosion controlmedicinalpollinator nectarywildlife benefitedible

Native Range

Central and Southern Europe

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Harvest Season

J
F
M
A
M
J
J
A
S
O
N
D

Edible Parts

root

Season of Interest

SummerFall

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Companion Planting

Plants well with