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Magnolia macrophylla
Also called Big-Leaf Magnolia, Large Leaf Cucumber Tree, Umbrella Tree, Large Leaved Cucumber Tree, Silverleaf Magnolia, White Cucumbertree
Bigleaf magnolia is a deciduous understory tree from the southeastern United States, famous for having the largest simple leaves and single flowers of any native North American woody plant. It grows best in rich, moist, well-drained, slightly acidic soil, sheltered from wind, and it is often short-lived in cultivation unless those conditions are met.
Magnolia macrophylla, the bigleaf magnolia, is a deciduous magnolia native to the southeastern United States. This species boasts the largest simple leaf and single flower of any native woody plant in North America.
Bigleaf magnolia is often short-lived under cultivation unless its rather demanding requirements are met. This tree likes loose, undisturbed rich mesic soil (or mulch and compost substitutes) in full sun or part shade with moist, well-drained soil and a low pH. This tree will likely succeed in sites that closely mimic its natural habitat and where it is protected from strong wind that can tatter its large foliage. It can be grown farther north than its southerly range suggests, but needs watering during extended dry periods. This plant is generally problem-free.
Bigleaf magnolia is found in rich mesic woods; any disturbance that lets more light reach the ground is beneficial to the establishment of bigleaf magnolia, but despite its relatively fast growth-rate when stimulated by more light, other understory and canopy trees/seedlings are usually able to outgrow and out-compete it. This suits the plant just fine as it is tolerant of low light levels; it does not need full sun to survive once established (however, it does not tolerate full shade). Natural regeneration is quite limited due to the scarcity of mature, seed-bearing plants and the fact that this tree's population mostly consists of widely scattered individuals. In addition, this species is plagued by poor seed set (most likely from limiting factors mentioned above) and low seed viability, a trait shared by its cousin and frequent associate in the wild in Appalachia, the Fraser magnolia.
Ashe's Magnolia · Magnolia boliviana · Campbell's Magnolia · Magnolia cararensis · Champak · Prosperous Music Smiling Tree · Magnolia coco · Compressed Michelia · Dawson's magnolia · Cloudforest magnolia · Chinese Evergreen Magnolia · Lilytree
Text excerpted from the Wikipedia article Magnolia macrophylla by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
