Eryngium bourgatii - Sea holly

Adversity Eryngium bourgatii : Avoid to apply treatments on plants that are not infected by parasites; in any case avoid to give pesticides or fungicides during bloom, to avoid to injure the bees. At the end of winter we can apply a Bordeaux mixture treatment, to prevent the growth of fungal diseases.

continental : We suggest to water the Eryngium bourgatii very frequently, since it prefers fresh and humid soils; during the cold season water only if necessary, however avoiding the substrate to dry out completely.

alpine : Waterings shall be very frequent from April to September, trying to maintain the soil constantly humid, however avoiding water excesses; during the rest of the year we can water them occasionally

mediterranean : It is advisable very frequent and generous waterings, to maintain the soil constantly humid. We can decrease waterings in winter.

continental : The Eryngium bourgatii needs to be exposed to direct sunlight for many hours a day to have a luxuriant growth
The Eryngium bourgatii tolerates also long intense frosts without any problem.

alpine : The Eryngium bourgatii prefer very bright locations, where they can receive direct sunlight.
These plants do not suffer from cold. They can tolerate also very intense frosts without any problem.

mediterranean : They bear few hours of half-darkness, but need at least few hours a day of direct sunlight.
It is advisable to grow this plant in the garden, since it does not suffer from cold.

Feed Eryngium bourgatii : These plants need regular fertilizings, to be given every 15-20 days, during the vegetative period. We can also give some slow-release granular fertilizer.