Mahonia aquifolium is a medium-sized shrub that reaches a height of 150-200 cm when ripe. It has a woody stem, dark brown or greyish in colour, erect, not very ramified; the shrubs tend, with the years, to assume a roundish shape, also because of the numerous basal suckers which develop rapidly.
The leaves are odd-pinnate, divided into 5-9 small oval leaves, pointed, with short thorns, of dark green colour; the variety atropurpurea produces dark purple leaves, by the end of winter.
In March-April at the apex of the stems of the maonia bloom small golden-yellow flowers, gathered in short cobs, delicately scented.
In late spring this plant produces small dark berries.
Being very rustic and resistant plants, they can resist well in difficult climatic conditions; for their best development, they should be planted in a sunny or semi-shady place; they do not fear the cold but are rather sensitive to long exposure to direct sunlight.
They can be grown in pots and, in this case, it is advisable to place them in an area where there are no air currents too intense or where there are major temperature changes.
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- In this section we talk about shrubs, a collection of detailed information about the different species grown in our gardens, tips for the right choice according to the needs of your ally…
Young shrubs of mahonia aquifolium watering at least once a week during the spring and summer, the shrubs planted for a few years can be satisfied with the rains, but we recommend watering in case of prolonged drought.
It is important to check that there are no water stagnations that could be very dangerous for the health of the plant.
At the end of the winter, provide organic fertiliser or slow release granular fertiliser, to be mixed with the soil at the foot of the plant.
The shrubs of mahonia aquifolium are rustic and not very delicate and develop without problems even in the common garden earth, it is however good to ensure an excellent drainage, to avoid water stagnation.
If they are planted in pots, it is advisable to use a mould for flowering plants or to mix soil, peat and sand at the bottom of the pot.
The multiplication of the maonia plants happens by seed, by cutting, or by removing at the feet of the plant a well developed sucker.
Sowing should be done in a box towards the end of summer, while the cuttings should be rooted in a mix of peat and sand and then transplanted individually to allow them to gain strength and vigor before being planted.
Maonia – Mahonia aquifolium: Parasites and diseases
The plants of this variety are very rustic and resistant and are not often attacked by pests and diseases, in any case it is always good to check the specimens to find out in time of possible attacks that could affect their health.
Powdery mildew attacks young leaves and shoots, covering them with white, dusty mould. Rust forms reddish spots on the top of the leaves and brown spots on the bottom. In this case it is necessary to use specific products that allow to treat these diseases quickly and resolutely.
- The mahonias are very popular shrubs, as they are evergreen, well resistant to cold and heat, difficult to reach by any means.
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