Magnolia grandiflora – Southern Magnolia

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Scientific Name

Magnolia grandiflora L.

Common Names

Southern Magnolia, Bull Bay

Synonyms

Magnolia angustifolia, Magnolia elliptica, Magnolia exoniensis, Magnolia ferruginea, Magnolia ferruginea, Magnolia foetida, Magnolia galissoniensis, Magnolia glabra, Magnolia gloriosa, Magnolia lacunosa, Magnolia lanceolata, Magnolia longifolia, Magnolia maxima, Magnolia praecox, Magnolia pravertiana, Magnolia rotundifolia

Scientific Classification

Family: Magnoliaceae
Subfamily: Magnolioideae
Genus: Magnolia
Subgenus: Magnolia
Section: Magnolia

Flower

Color: White
Bloom Time: Late spring

Description

Magnolia grandiflora is a medium to large evergreen tree, usually up to 50 feet (15 m) tall, rarely growing up to 100 feet (36.5 m), with (typically) single stem and a pyramidal shape. The leaves are simple and broadly ovate, dark green in color, up to 8 inches (20 cm) long and up to 5 inches (12.5 cm) wide, with smooth margins. Flowers are large, showy, lemon citronella-scented, white, up to 12 inches (30 cm) in diameter, with 6–12 petals with a waxy texture, emerging from the tips of twigs on mature trees in late spring. Flowering is followed by ovoid, rose-coloured fruit, up to 4 inches (10 cm) long and up to 2 inches (5 cm) wide.

Magnolia grandiflora - Southern Magnolia

How to Grow and Care

Although different species of Magnolia can tolerate slightly different conditions. In general they will do best with slightly acidic, moist, loose, well-draining soil. To mimic Magnolia’s natural conditions, amend heavy soil with peat moss and compost. Grow best in Zones 7-10, depending on variety, with a few cultivars hardy to zone 5. Full sun to partial shade. Moist, peaty soil can help Magnolias tolerate full sun. If you’re pushing the limits of cold tolerance, avoid planting Magnolias in southern exposure since the leaves can be damaged by winter sun and flowers may open prematurely. Magnolias benefit from irrigation the first few years, then they are tolerant of moderate drought.

They need room to grow to their full mature size and width. While looking small when first planted, over time they’ll grow to fill up the space.

Some varieties of Magnolia don’t bloom until 15 years old, so be sure to choose one that’s fits your needs and expectations. Grafted plants (rather than seed-grown) bloom sooner… – See more at: How to Grow and Care for Magnolias.

Origin

Native to the southeastern United States.

Links

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