Osmunda regalis - Royal fern

continental : During the winter watering should occur rarely, only if the weather is particularly mild; when the temperatures are harsh we suggest avoiding to water. Irrigate every 2-3 weeks with 1,2 litres of water.

alpine : During this period water once in a while with 0,2 litres of water, so that the soil remains prevalently dry; the watering will be sporadic, every 3-4 weeks or even less.

mediterranean : During the winter these plants should be watered only if the climate is mild, using 2,2 litres of water, with very harsh temperatures, we can reduce or suspend watering. If there are particularly sunny days, act every 1-2 weeks.

continental : Locate this plant in a partially shady spot, where it can receive some hours of direct sunlight.
The Osmunda regalis can stand the cold and can even stand prolonged freezing and very harsh temperatures; therefore it’s grown in the garden.

alpine : Let's grow these plants in a partially shaded place, where they can receive direct sunrays just for a few hours a day.
The Osmunda regalis can stand the cold and can be grown in the garden even during the coldest months of the year.

mediterranean : The Osmunda regalis can bear a few hours of direct insolagtion, but it is best to place it in a partially shady place.
The Osmunda regalis is a very rustic plant, which can stand without problems the winter cold.

Fertilization Osmunda regalis : In the winter aquatic plants shouldn’t be fertilized.

Treatments Osmunda regalis : 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.