Mahonia aquifolium - Hollyleaved barberry

Fertilization Mahonia aquifolium : In autumn we must plant a good quantity of organic fertilizer of humus at the base of the shrubs . This type of fertilization, besides improving the mixture of the soil, makes macroelemnts, prevalently nitrogen, available for 3-4 months. In this manner the soil near our shrubs has a source of nitrogen which will be prolonged until the next spring.

continental : We can grow the the Mahonia aquifolium 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 Mahonia aquifolium 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 Mahonia aquifolium 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 Mahonia aquifolium in the garden, in full ground; it can stand the cold.

continental : We suggest quite frequent and regular watering, in the matter of 1-2 buckets of water, but without exceeding; we should always remember to wait for the soil to dry completely between one watering and another; usually we should water every 2-3 weeks.

alpine : In this period of the year we must water only when the soil is perfectly dry, using 0-1 buckets of water; usually watering every 3-4 weeks can be enough.

mediterranean : During the autumn months these plants don’t need too much watering; we should remember anyhow to act regularly with 2-3 buckets of water, when the soil is clearly dry. Typically watering is done every 1-2 weeks.

Treatments Mahonia aquifolium : 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.