Eryngium maritimum aka Eryngo
Taxonomy
Eryngium maritimum, commonly known as sea holly or sea eryngo, is a clump-forming perennial plant native to most European coastlines. It belongs to the Apiaceae family and bears a resemblance to a plume thistle with its burr-shaped flowers. Despite its name, it is not related to true holly but is instead an umbellifer. This plant grows to a height of around 60cm and has waxy, stiff, and spiny leaves that are blue-green in color with white veins. From April to September, it produces globular blue umbels of flowerheads surrounded by spiky bracts. As a houseplant, the seaside eryngo, a rare variety of Eryngium maritimum, requires regular watering and thrives best in long-lasting, direct light within a foot's distance from a window. It prefers well-draining soil and is native to coastal regions of Europe.
Common names
Eryngo, Sea Holly, Seaside EryngoHow to care for Eryngo
Water
Eryngo should be watered regularly, allowing the soil to dry out between waterings.
Soil
Eryngo loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.
Lighting
Eryngo thrives in bright and direct sunlight. To ensure your plant receives enough light to survive, place it less than one foot from a window. The current weather in your area may affect the placement in your home. For example, if you live in a region that has longer and more intense periods of sunlight, then you may want to place the plant farther away from the window to avoid direct sunlight and reduce the risk of sunburn. Alternatively, if you live in a region with relatively milder temperatures and less intense sunlight, then you may be able to place the plant closer to the window for increased exposure. Ultimately, the current weather in your area should be taken into consideration when determining the best placement for your Seaside Eryngo.
Toxicity
The toxicity level of this plant has not been officially confirmed by Ploi. If there is a possibility of ingestion of plant material with an uncertain toxicity by you, a family member, or a pet, it is advisable to seek the assistance of a medical professional.
Region of origin
Eryngo’s native range is European coasts, including Britain, from Scandanavia to the Mediterraneanand Baltic, and Black Sea.
More info:
Wikipedia
More Species in Eryngium Genus
Eryngium ternatum Eryngium

Eryngium aristulatum California Eryngo
Eryngium agavifolium Sea Holly
Eryngium aromaticum Fragrant Eryngo

Eryngium campestre Field Eryngo

Eryngium prostratum Creeping Eryngo
Eryngium humile

Eryngium leavenworthii Leavenworth's Eryngo
Eryngium heterophyllum Mexican Thistle
