The Magnolia Grandiflora
The Magnolia grandiflora is a broad-leaf evergreen tree whose name accurately describes its majestic beauty and stately elegance.
This specimen tree, also known as southern magnolia, is a member of the Magnoliaceae family. While native to USDA zones 7 to 9, compact varieties such as Bracken's Brown Beauty and Edith Bogue are hardy to USDA zone 5b.
The Magnolia grandiflora grows in a pyramidal shape and is the only evergreen magnolia. Its oblong-shaped leaves are dark green above and tan to copper brown underneath, making them attractive for use in floral arrangements.
The tree drops its leaves in late spring, which is a good time to rake them away and inspect the tree for winter damage.
Flower buds appear in May, and by late June and July, lemon-scented, large creamy-white colored magnolia blossoms cover the tree.
Expect to see native bees and beetles visiting the flowers. After blooming, look for the development of cone-shaped seed pods that hold red seeds poised on silvery threads. These pods and seeds can be used in dried or wet floral arrangements.
This tree requires adequate space and rich, loamy soil for growth. Site the grandiflora in a part sun-part shade location where it is best appreciated for viewing. When purchasing a grandiflora from a nursery or online vendor, read the plant tag to assure that the tree is hardy to USDA zone 5b. Choose a specimen with even branch growth and a pleasing shape.Gardeners encounter few problems with this tree, which is relatively disease and insect-free. Deer rarely eat the foliage, but apply protection around young trunks to prevent buck rub.
Prune dead, damaged and crossing branches after blooming, as dormant magnolias do not heal well after pruning.Apply an all-purpose, slow-release fertilizer in the spring when flower buds appear, then mulch. Because these trees can be come deficient in iron and nitrogen, check the fertilizer components to assure these two nutrients are present.Water weekly or more frequently in hot, dry weather, but avoid over-watering.Magnolia grandiflora is worth the monetary investment for a tree that offers year-round greenery and a spectacular show of summer blooms and autumn fruits.
If you have questions about magnolia trees, call the Butler County Master Gardener Garden Hotline at 724-287 4761, Ext. 7, or email the Master Gardeners at butlermg@psu.edu.Lisa Marie Bernardo, Ph.D., RN, is a Penn State Master Gardener of Butler County.
