The Magnolias in the garden
Magnolias are a genus of very showy trees and shrubs; there are about eighty magnolia species in the world, and many are hybrids and cultivars. We can distinguish a group consisting of tall evergreen trees, with leathery leaves and summer flowering, whose specimens originate from the North American continent; another group, on the other hand, is that of Asian magnolias, even large shrubs with deciduous and late-winter or spring blossoms.
The magnolias are among the most appreciated flowering trees: they are in fact an unforgettable show, with their delicate petals coming out directly from the branches, even before the leaves, to indicate the arrival of the warm season.
Everyone can have the satisfaction of cultivating one, since there are many different sizes and portions. They can therefore be placed in large parks, in small gardens or even grown in large containers, on balconies or terraces.
Magnolias come from East Asia and the East coast of the United States. In Europe they were known since ancient times, but their cultivation (especially of the persistent leaf varieties) has spread since the 18th century.
The evergreen magnolias
Certainly among the most cultivated high-trunked magnolias, first of all the magnolia grandiflora, a large tree, which reaches 15-20 meters in height, with leathery leaves of bright green and large white flowers in summer, followed by particular fruit woody, from which the small red fruits protrude. One of the first specimens grown in Europe can be admired in the botanical garden of Padua, where it appears to have been planted in the late eighteenth century. These trees have been grown in European gardens for centuries, especially in the large parks of stately homes and city gardens.
There are other species of this plant of American origin, although in general they are difficult to find in Italy; for example, M. acuminata and M. tripetala. These species are widespread in particular in the southern parts of the United States, and generally bear the Italian climate without problems.
Among the evergreen-leafed species there is also an Asiatic, the Magnolia delavayi, with bright green foliage, and large white, fragrant, fleshy flowers that bloom at the height of summer.
Deciduous leaf magnolias
The magnolias that lose their leaves are all of Asian origin and have been grown in Europe for centuries; most produce its large flowers in late winter or early spring, before producing leaves; the beauty of these plants is in fact being able to admire the bare trees adorned with beautiful flowers.
The most widespread in cultivation are hybrids of magnolia x soulangeana, originating from the hybridization between m. liliflora and magnolia denudata; small shrubs with slow growth have been obtained, which over the years can become small trees, with deciduous leaves, which in spring produce huge cupped flowers, white inside, pink on the outside.
Other magnolias that are very cultivated are the stellar magnolias, with large star-shaped flowers, of a pure white color, which also bloom on the completely bare tree.
There are many other species, such as Magnolia kobus, magnolia obovata, magnolia officinalis, which are generally only cultivated in botanical gardens, or by collectors, and are not easily found in nurseries, although they are delicate and graceful plants.
These plants are also rustic and can be grown in the garden without problems.
THE MAGNOLIA IN BRIEF
Name, genus, species
Magnoliaceae, gen magnolia, more than 125 species
|Type of plant||Deciduous or persistent flowering tree or shrub|
|Origins||East Asia, United States|
|Flower color||White, pink, crimson, yellow|
|Rusticitа||Medium and very rustic|
|Ground||Deep, soft, rich, fresh, generally not calcareous|
|pH||Usually acid, but for some species also neutral or sub-alkaline|
|Height||From 2 to 30 m|
|Propagation||Sowing, cutting, layering, grafting|
THE MAGNOLIA CALENDAR
September-October / April
|Flowering||From March to September, depending on the varieties|
|Training pruning||After flowering|
|Composting||Organic: autumn; synthesis: spring|
|Talea / graft||From mid-summer|
|Magnolia kobus||Small fragrant white flowers, pink fruits||Up to 10 m||March April||It tolerates the calcareous soil. Suitable for this as a rootstock. Withstands up to -15 ° C and bears the shadow|| From Japan|
Among the most simple and tolerant
|Magnolia x loebneri||Star-shaped flowers, up to 14 petals, from white to tender pink||From 5 to 10 m||April||Hybrid available in different cultivars||Full sun, it tolerates late frosts well|
|Magnolia x soulangeana||Cream flowers with pink streaks, like a tulip.||Up to 6 m||April May|| Withstands up to -20 ° C|
Many cultivars available
|Very widespread, expanded habit, flowers before the leaves|
|Magnolia liliiflora||Long petals, white or purple. About 7 cm in diameter||Up to 4 m||From April to July, the longest. It can be repeated in autumn||Up to -15 ° C Beautiful pointed and glossy leaves||Cultivar: nigra (compact), purpurea (rose flowers).|
|Starry magnolia||Large star-shaped flowers all along the branch||Very compact, up to 3 m||March April||Very rustic and resistant, up to -25 ° C||It also grows in calcareous soil. Suitable for vases|
|Magnolia denudata||Cup, white, about 15 cm in diam||From 5 to 10 m, pyramidal shape||March April||Up to -15 ° C||From China, broad and shiny leaves|
|Magnolia sieboldi||Cup-shaped, semi-detached, white with a red center, very fragrant||10 foot||May||Very rustic|| From Japan and Korea. Thin branches and oblong leaves. Acid medium.|
Suitable for vase
|Magnolia obovata||Large, cup-shaped, creamy white and / or purple, very fragrant||30 m||May June||Very rustic|| From Japan|
Leaves up to 45 cm and 20 wide, very beautiful
|Magnolia stellata x liliflora "Susan"||Large, dark pink tulip, very fragrant||2-4 meters||April May||Up to -15 ° C||Interesting foliage, also suitable for pots|
|A persistent leaf||Magnolia grandiflora||Cup-shaped flowers, large, in white, pink or purple. Highly scented||More than 30 meters||Very long, generally from June to September-October||Up to -25 ° C|| Originally from the United States|
Available in many varieties and cultivars with different flower colors, but also variegated leaves.
Among the most widespread in the North.
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The magnolia, belonging to the family of the magnoliaceae, is a tree of important ornamental value, appreciated i
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The magnolia soulangeana is one of the most suitable varieties to be cultivated in the garden. It is a hybrid that flowers
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There are two great types of magnolias: those with deciduous leaves and those with persistent foliage. The first flourish in advance
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The scientific name of this plant is magnolia x soulangeana: that x between the two terms indicates that it is a ibr
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