Eryngium giganteum - Sea holly

continental : Let’s try to keep the ground fairly damp, watering every 2-3 weeks with 1-2 glasses of water; when the weather is very harsh and the temperatures are below zero, watering can be interrupted.

alpine : Every 3-4 weeks water the soil, trying to wet it deeply; keep the ground constantly moist, although we must avoid water stagnations. Usually 0-1 glasses of water are used.

mediterranean : We suggest watering regularly with 2-3 glasses of water, trying to keep the growing substratum pretty cool and moist; if the climate is very cold we can reduce watering. 1-2 weeks should go by between irrigations.

continental : For the the Eryngium giganteum let's prefer very sunny locations, directly exposed to sunrays.
During the cold months the Eryngium giganteum should be sheltered from the frost, in a cold greenhouse or in a home.

alpine : For a balanced development, it is best for the the Eryngium giganteum to receive as many hours possible of direct sunlight.
During the winter period, locate the the Eryngium giganteum in a place sheltered from the frost, to avoid it from being ruined by the cold temperatures.

mediterranean : Plant which needs to be exposed to direct solar rays.
Plant the the Eryngium giganteum in a quite sheltered place; it can’t stand the frost.

Fertilization Eryngium giganteum : In the winter let’s avoid fertilizing medicinal plants.

Treatments Eryngium giganteum : Towards the end of the winter, before the buds get bigger, let’s apply a defensive treatment against the most common fungi diseases, using a fungicide based on sulphur and copper.