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Magnolia x soulangeana

Magnolia x soulangeana
Magnolia

4,1/5
19 reviews
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4 reviews

I received my magnolia within 48 hours. It perfectly matches my order. Well packaged, well protected, it is beautiful. Thank you Promesse de Fleurs, I highly recommend the website without hesitation.

JOCELYNE , 09/03/2024

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This plant carries a 24 months recovery warranty

More information

A small ornamental tree, covering itself very early in spring, before the appearance of foliage, with large flowers, white-cream, pink and purple, in the shape of tulips. A sumptuous spectacle in pastel tones at the end of winter!
Flower size
15 cm
Height at maturity
6 m
Spread at maturity
4 m
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time March to April, September to October
Recommended planting time March to May, September to November
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Flowering time April to May
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Description

One of the oldest flowering trees, the Magnolia x soulangeana is a fascinating deciduous foliage bush of medium size with a spreading habit, well branched, slow growing, and extremely floriferous. It is covered in early spring, before the leaves appear, with large flowers that are slightly fragrant and cream-white, pink, and purple in colour, shaped like tulips. A sumptuous spectacle in pastel colours that brings the garden back to life after winter!

 

This Magnolia, belonging to the magnolia family and originating from Asia, is a French horticultural creation from the 19th century, resulting from the crossbreeding of Magnolia denudata and Magnolia liliflora. It is an upright tree with a rounded and spreading shape, taller than wide, reaching a height of 6 to 8 metres at maturity and a width of 4.50 metres. It often has a bushy habit with beautiful, well-balanced branches, but it can also grow with a single trunk. The base of its leaves is contracted, and their rounded tip is briefly tapering. The deciduous foliage consists of oval, dark green leaves with a paler and finely velvety underside, turning yellow-brown in autumn, and measuring 10 to 15 cm (3.9 to 5.9 in) long. From March to May, large campanulate flowers appear, before and after the leaves, solitary and fragrant, shaped like cups or tulips, white on the inside and dark pink-purple on the outside. These upright flowers open from buds protected by velvety bracts and are made up of 9 waxy and thick tepals (indistinguishable sepals and petals), opening widely and measuring up to 15 cm (5.9 in) long, with numerous red-brown stamens. After flowering, brown fruits in the shape of cylindrical cones appear, containing red seeds. The longevity of the Magnolia x soulangeana can exceed a hundred years. It is one of the most widely planted Magnolia in parks and gardens across Europe.

 

This Magnolia x soulangeana, an exceptional ornamental tree, will thrive in both small gardens and large parks! It is perfectly suited to our climates and should be planted in a rich, moist, and well-drained soil that is not chalky, in full sun or partial shade. Also, avoid planting other plants within 1.50 metres (4 feet 11 inches) of the Magnolia trunk, as its roots do not tolerate competition. It is most commonly used as a solitary specimen in the middle of a short grass meadow, where its remarkable flowering is truly impressive. It can also be combined with a mass planting of acid-loving shrubs (Rhododendrons, Camellias, Hydrangeas, Nandinas, Peonies...) for a Japanese-style garden. It is also possible to create beautiful flowering hedges along pathways, alternating this Magnolia with other cultivars (Magnolia grandiflora, Magnolia denudata...).

Magnolias are ancient trees, with fossils dating back more than 20 million years. Their magnificent flowering is considered one of the most primitive: their flowers are, from an evolutionary point of view, close to the earliest existing flowers. The bark of magnolias has medicinal properties and is used in cosmetics. Their wood is considered precious.

 

Magnolia x soulangeana in pictures

Magnolia x soulangeana (Foliage) Foliage
Magnolia x soulangeana (Plant habit) Plant habit

Plant habit

Height at maturity 6 m
Spread at maturity 4 m
Habit spreading
Growth rate normal

Flowering

Flower colour pink
Flowering time April to May
Inflorescence Solitary
Flower size 15 cm

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Magnolia

Species

x soulangeana

Family

Magnoliaceae

Other common names

Magnolia

Origin

Cultivar or hybrid

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Planting and care

The Magnolia x soulangeana thrives in sheltered locations with plenty of sun or partial shade. It requires moist to humid, well-drained, deep, neutral to acidic soil that is rich in humus. It can tolerate clayey soil as long as it is not waterlogged and can also handle some limestone in the soil, but not too much. However, it cannot survive in poor, dry soil or windy locations. The tree is highly hardy and can withstand temperatures as low as -20°C, but young plants need protection from frost in their first years. Late frosts and cold winds can damage the tree's flower buds and young leaves, affecting its ability to bloom.

You can plant Magnolia in spring or autumn, as long as there is no frost. Choose a sheltered spot away from cold winds and prepare a hole that is 80 cm (31.5 in) on each side and the same depth. Fill the hole with ericaceous soil, compost, and carefully place the tree in it to avoid breaking its fragile roots. Water the tree immediately with non-limestone water (rainwater) to help compact the soil around the roots. In the first year after planting, water the tree once a week. Add a layer of mulch or fertiliser in the spring. 

Replacing the soil with grass cuttings, pine bark, leaf compost, and ericaceous soil is advisable if planting in limestone soil. Avoid choosing too large plants (1.50 m (4 ft 11 in) is a good size) for a better tree establishment. Staking may be necessary for larger trees and should be generously watered in the first few years. Magnolia cannot tolerate prolonged drought, so the soil should remain slightly moist (but not waterlogged) throughout the summer. Mulching the base of the tree will help retain moisture during the hot season, enrich the soil, and protect it from the cold in winter. 

For the first few years, pruning after flowering can be done to shape the tree's silhouette. The growth of this tree is slow in the first years after planting, but it will be well-established after 4 to 5 years, and its growth rate will increase. Pruning will become unnecessary except for removing dead wood and rebalancing its habit. Transplanting should be avoided due to the tree's fragile roots. Because Magnolia's roots are delicate, it's best to avoid transplanting. Magnolias are ornamental trees that do well in polluted areas, and their roots won't damage building foundations. Parasites like scale insects, snails, and slugs can harm young plants and diseases like rot (in excessively wet soil), coral spot, and pestalotiopsis.

Planting period

Best planting time March to April, September to October
Recommended planting time March to May, September to November

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Free-standing
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Planting density 1 per m2
Exposure Sun, Partial shade
Soil pH Acidic, Neutral, Any
Soil type Clayey (heavy), Silty-loamy (rich and light)
Soil moisture Moist soil, drained

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground
4,1/5

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