Osmunda regalis - Royal fern

Fertilization Osmunda regalis : During the colder months of the year it’s not necessary to fertilize aquatic plants. A great part of the aquatic plants, during the winter, are in fact in vegetative rest.

continental : We can grow the the Osmunda regalis in a place where it can receive a few hours a day of direct sunlight, but where it is protected from the sun during most of the day.
The Osmunda regalis is a rustic plant, which doesn’t tolerate the winter cold, even when the nocturnal temperatures are very low.

alpine : Locate this plant in a partially shaded place, where it can receive a few hous of direct solar light.
The Osmunda regalis can stand the cold, therefore it can be grown outdoors year round.

mediterranean : We suggest a pretty sheltered location, so that the plant can receive direct solar rays only during the coolest hours of the day.
Grow the The Osmunda regalis in the garden, in full ground; it can stand the cold.

continental : We advise leaving the ground prevalently dry, watering from time to time, every 10-11 days; if there are intense rains and the weather is quite cold we can reduce the watering even more. Usually 1-2 buckets of water are used.

alpine : We suggest watering rarely, such as every 10-11 days with 0-1 buckets of water, but only when the weather is mild, and the substratum has been dry for days.

mediterranean : During this time of year we suggest watering only once in a while using 2-3 buckets of water, leaving the soil dry for a few days before watering it again. If the weather is cold irrigate rarely. Between one watering and the other 10-11 days should go by.

Treatments Osmunda regalis : During the cold months many pathogens spend the winter in the ground, at the feet of our plants; let’s treat the plants struck by black spot disease or by leaf curl disease with particular attention by applying a wide-range anticryptogamic treatment, to vaporize even on the ground. Let’s gather and destroy the leaves of the sick plants.

Osmunda cinnamomea - Felce florida, F. delle paludi