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Rhododendron: Benefits, Reviews, Warnings?

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Rhododendron: Benefits, Reviews, Warnings?

Rhododendrons belong to the genus Rhododendron, which includes several species of shrubs, including the so-called Azaleas; the name derives from the greek and means tree roses, and well represents the appearance of these shrubs, which produce beautiful blooms in spring. The species, as we said, are many, widespread in Europe, Asia and North America; in Italy there are few endemic species, mostly distributed in mountainous areas, fresh and sunny; remember the Rhododendron crowberry, which produces large patches of pink during the summer in alpine areas.

Of all the species contained in the genus Rhododendron, those that are commonly called rhododendrons are generally evergreen species; it comes to shrubs of various sizes, from 30-40 cm to a few meters in height, with glossy leaves and persistent, with a nice dark green color, which produce large bell-shaped flowers in late spring, meeting beautiful bouquets apex of the branches. In the garden we grow mostly hybrids, derived mainly from the Asian species; the colors of the flowers are usually in shades of pink, often with stripes in contrasting shades; However, there are hundreds of hybrids, even in flowers purple or blood red.

The acidophilic plants
The genus Rhododendron Rhododendron is part of the great family of the Ericaceae; these plants are acidophilic, or require a specific soil to be able to grow better. So we will put our rhododendron planted in a specific soil for acidophilic plants, possibly calcium-free, and consists of peat and leaf mold.

In order to promote the harmonious development of the rhododendron, and avoid the most common diseases, it is essential that the soil in which it grows remains acid but unfortunately irrigating with water over limestone-rich soils and the proximity of limestone, often bring the soil to become less acid compromising the development of our plants. Generally it is obvious to this problem by watering the plants with rainwater, and ammendando every year the soil with fresh peat, so as to maintain the low pH. In areas where the soil is very chalky it is not advisable to grow rhododendrons in the ground, it is preferable to place them in pots, so you can periodically replace all the soil in which the plant is rooted.

It 's easy to notice when the soil is not acidic, because the acidophilic plants grown in a soil over limestone tend to not be able to absorb the dissolved iron in the substrate; the foliage tends to progressively lighten in color, becoming green apple, flowers tend to decrease in number, and the plant takes on a sickly, barely growing. To avoid these troubles, all gathered under the name of chlorosis, we can first of all try to prevent the soil from becoming acid, basic, moreover we can also periodically provide fertilizer greening, which helps the plant to absorb all the minerals from the soil it needs.

Rhododendron - Rhododendron: Growing Rhododendron
Generally rhododendron rhododendrons are easy to grow, once you find the right substrate in which cultivate. Most of the species prefer shady places, or partially shady; this because they are all from areas cool and humid, so especially during the hottest days of the year are concerned in particular drought and excessive heat.
The placement in a shady location allows us to avoid exposure to summer heat.

To better keep plants healthy and thriving is important to water them with a good frequency: from March to September we will try to keep the soil slightly damp, avoiding to soak it with water, and also to let it dry for extended periods of time.

During the growing season we also provide fertilizer for acidophilic plants: It is recommended to use a slow release fertilizer, to spread at the foot of the shrub once every 3-4 months.

Some species of rhododendron can become very huge, even reaching 5-6 meters in height; In fact, however, their growth is very slow, and we can easily contain shrubs placed in cramped positions shortening the branches after flowering. Generally it is not necessary to make significant pruning, except for the classical pruning cleaning ruined by the branch in late winter.
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These plants do not fear the cold, though it may happen that exposure to cold wind dehydrated over the ground and the air, so it is good place them in a place sheltered from the wind.

Article Wiki Closed - Rhododendron: Benefits, Reviews, Warnings?
asked Jul 4, 2014 by Lancomega Level (10,245 points)
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