Alphabetical Plant Listing

Magnolia grandiflora 'Exmouth' (Southern Magnolia)

Southern Magnolia 'Exmouth', Evergreen Magnolia 'Exmouth', Loblolly Magnolia 'Exmouth', Great Laurel Magnolia 'Exmouth', Big Laurel 'Exmouth', Bull Bay 'Exmouth'


Magnolia grandiflora 'Exmouth' (Southern Magnolia) is a magnificent, dense evergreen tree with a straight trunk and a pyramidal to rounded crown. Huge, heavily scented, creamy-white flowers, 10 in. across (25 cm), appear at the tips of thick, tough stems in mid-spring, throughout the summer and into fall. The bowl-shaped blossoms, packed with up to 20 tepals, open in the morning and close at night for 2-3 days. It can take 10 years to flower. They are followed by cone-like seedpods that contain large rose-red seeds. When the pods open, the seeds often hang by silky threads. The evergreen foliage of large, smooth, leathery, oblong-elliptic leaves, 10 in. long (25 cm), is shiny dark green above and brown-felted underneath. Southern Magnolia is relatively fast-growing and pest free. Long-lived, its attractive evergreen leaves and creamy-white fragrant flowers make it a popular ornamental and shade tree. Erect in habit, it is often planted against walls. Its dried leaves are prized by florists in flower arrangements. 'Exmouth' was developed in the early 18th century by John Colliton in Devon.

  • Grows up to 30-40 ft. tall and wide (9-12 m)
  • A full sun to part shade lover, this plant is easily grown in organically rich, moist, preferably neutral to acid, well-drained soils. Tolerant of sandy to heavy clay soils when established. Does not withstand extreme drought or wetness or pollution.
  • Perfect as a specimen plant.
  • Low maintenance, this beautiful tree is not subject to serious insect or disease issues. Keep an eye out for horse chestnut scale, capsid bug, coral spot and honey fungus. Deer rarely bother Southern Magnolia.
  • No routine pruning necessary. Remove diseased, damaged, congested or crossing shoots. If pruning is desired, prune after blooming during the growing season because dormant magnolias do not easily heal.
  • Older leaves drop during late spring and summer. This can be a problem in well-manicured landscapes.
  • Propagate by seed in autumn, semi-ripe cuttings from late summer to early autumn or layering in early spring.
  • Magnolia grandiflora is native to the southeastern United States.

Not sure which Magnolias to pick?
Compare All Magnolias

Buy Magnolia grandiflora 'Exmouth' (Southern Magnolia)

Requirements

Hardiness 7 – 9
Heat Zones 1 – 9
Climate Zones 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2
Plant Type Trees
Plant Family Magnolias
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 30' – 40' (9m – 12m)
Spread 30' – 40' (9m – 12m)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Fragrant, Showy, Evergreen, Fruit & Berries
Attracts Birds
Garden Uses Wall-Side Borders
Garden Styles Prairie and Meadow

Buy Plants

Guides with Magnolias


123rf

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 7 – 9
Heat Zones 1 – 9
Climate Zones 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, H1, H2
Plant Type Trees
Plant Family Magnolias
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Winter
Height 30' – 40' (9m – 12m)
Spread 30' – 40' (9m – 12m)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Fragrant, Showy, Evergreen, Fruit & Berries
Attracts Birds
Garden Uses Wall-Side Borders
Garden Styles Prairie and Meadow

Guides with Magnolias

Plant Calculator

How many Magnolia grandiflora 'Exmouth' (Southern Magnolia) do I need for my garden?

%
ft
ft

Your Shopping List

Plant Quantity
Magnolia grandiflora 'Exmouth' (Southern Magnolia)

Find your Hardiness Zone

Find your Climate Zone

Find your Heat Zone

Join Gardenia.net

Create a membership account to save your garden designs and to view them on any device.

Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

Join now and start creating your dream garden!

Create a New Collection

Optional. For your reference.


Move Selected Plants to a Different Collection


Delete Collection

This field is required.