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Magnolia macrophylla subsp. ashei

Magnolia macrophylla subsp. ashei
Ashe's Magnolia, Ashei Magnolia

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A spectacular deciduous magnolia. Measuring about 10m (33ft) in height, this large bush bears oversized leaves, apple green with fluffy undersides, turning beautiful shades of yellow in autumn. It produces huge white flowers with a deep purple wine-colored heart, highly fragrant, in May-June. To be grown in morning sun or partial shade, in a neutral to acidic, rich, well-drained soil that does not dry out too much. Hardy down to -15°C (5°F).
Flower size
25 cm
Height at maturity
10 m
Spread at maturity
6 m
Exposure
Sun, Partial shade
Hardiness
Hardy down to -20°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time March to May, September to November
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Flowering time May to July
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Description

The Magnolia macrophylla subsp ashei, also known as Magnolia ashei, is a smaller form of the large-leaved Magnolia. Just as spectacular as the typical species with its oversized leaves and flowers, this version is more suitable for the size of our gardens. This large bush offers a lush apple green foliage with silver reverse, very large white flowers with dark red heart, pleasantly scented, large decorative fruits as well as beautiful golden colors in autumn. Magnolia Ashei also has the advantage of flowering from a young age. A collection plant for tropical and exotic ambiance enthusiasts!

The Magnolia ashei was discovered on cliffs in Florida, it is a rare form in cultivation. It differs from the typical species by its smaller size, less hairy leaf undersides and its ability to bloom at a young age, after 3 or 4 years of cultivation under good conditions. According to sources, its leaves and flowers are also slightly smaller, although not all agree on this point. It is a plant that prefers deep, humus-rich, well-drained soil that remains slightly moist. M. ashei is a large bush with a rounded habit, a bit bushy, reaching 8 to 10 m in height and 7 to 8 m in spread at maturity. Its growth is quite fast in rich and moist soil. Its magnificent foliage consists of oblong leaves, of large size, measuring between 40 and 60 cm (16 and 24 in) in length. They are light green on the top, whitish-gray on the reverse. Flowering takes place between May and July. It takes the form of beautiful and large cup-shaped flowers, measuring 20-25 cm (8-10 in) in diameter, at the end of the branches. They have a slightly parchment-like texture, slightly yellowing white. Their fragrance has notes of jasmine and citrus. The flowers are followed by decorative conical fruits, red to purple, revealing seeds of a bright orange. The deciduous foliage turns yellow and amber in autumn before falling.

Although exotic in appearance, the Magnolia macrophylla ashei is hardy in many regions and can withstand temperatures as low as -15°C (5°F) without damage. It is preferably planted in partial shade, or even in full sun in our less sunny regions. It will be superb as a specimen or in the background of a bed, in an exotic theme. To accompany it, consider giant Brazilian rhubarb, rodgersias, queen of the meadows, and other ornamental gingers.

Magnolia macrophylla subsp. ashei in pictures

Magnolia macrophylla subsp. ashei (Foliage) Foliage

Plant habit

Height at maturity 10 m
Spread at maturity 6 m
Habit Irregular, bushy
Growth rate fast

Flowering

Flower colour white
Flowering time May to July
Flower size 25 cm
Fragrance Fragrant, jasmine and citrus trees notes
Fruit colour red

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Magnolia

Species

macrophylla subsp. ashei

Family

Magnoliaceae

Other common names

Ashe's Magnolia, Ashei Magnolia

Origin

Cultivar or hybrid

Product reference180461

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Planting and care

Grow the Magnolia macrophylla subsp. ashei in partial shade preferably (in the sun in less sunny and moist regions) but not in total shade. Plant it sheltered from the wind that would damage its large leaves. It requires a fertile, humus-rich, deep, well-drained soil, with a neutral or slightly acidic tendency. The soil should never completely dry out, without being waterlogged.

In a lime-free soil: dig a very large planting hole of at least 70 cm (28 in) in all directions and add ericaceous compost and mulch mixed with your garden soil.

Mulch the Magnolia in the first year to prevent it from freezing during severe winter frosts. Water it well in cases of drought. Rainfall will be sufficient for watering, except in abnormally dry summers. From February to June, before vegetation emerges, remove dead or diseased wood as well as crossing branches.

Planting period

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

Intended location

Suitable for Meadow, Woodland edge
Type of use Free-standing
Hardiness Hardy down to -20°C (USDA zone 6b) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Sun, Partial shade
Soil pH Acidic, Neutral
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, rich in humus, light, well-drained

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Good
Overwinter Can be left in the ground

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