Mahonia japonica

Adversity Mahonia japonica : 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 : These plants need rather frequent waterings in spring and summer, always allow the soil to dry out between two waterings. We can suspend waterings during cold months.

alpine : It is advisable to give regular waterings, specially during spring and summer; before giving again water make sure the soil is dry.

mediterranean : Waterings shall be given by watering the soil deeply, but only when it is very dry, avoiding to leave plant roots in stagnating water. During the cold season we can suspend waterings.

continental : We suggest to place these plants in a semishady location.
The Mahonia japonica tolerates also long intense frosts without any problem.

alpine : Avoid to expose this plant every day to an excessive exposure to direct sunlight; try to place it in a semishady location, especially in summer.
These plants do not suffer from cold. They can tolerate also very intense frosts without any problem.

mediterranean : The Mahonia japonica prefers semishady locations, not exposed to direct sunlight for too long periods.
It is advisable to grow this plant in the garden, since it does not suffer from cold.

Feed Mahonia japonica : We suggest to fertilize the shrubs using long lasting fertilizers; usually it is supplied a fertilizing at the end of winter and a second one at the end of summer; in both cases it is used an organic fertilizer or a slow-release fertilizer.