Magnolia Root System – Are Magnolia Roots Invasive

by Peter on October 27, 2020

What are Magnolia Root System?

Magnolia root system is a type of shrub or small tree with very large leaves. They grow in temperate regions of North America from Canada to Mexico. These plants have long been used as ornamental trees and bushes, but they were not widely cultivated until the 20th century due to their susceptibility to insect attack.

The name “magnolia” comes from the Latin word magnus, meaning big. The term was coined in 1824 by William Henry Fox Talbot, a botanist at Harvard University. Magnolias are native to the United States and are found throughout most of its interior states including Texas, Oklahoma, Kansas and Nebraska.

Some species grow up into high mountains where they form dense stands reaching heights of several hundred feet.

Insects such as aphids, scale insects and whiteflies can cause severe damage to these shrubs. Other pests include deer mice, moles, rats and squirrels. The bark beetles (Coleoptera) may also infest them.

Their leaves turn yellow and drop off in spring leaving bare branches. The foliage becomes brittle when it dries out in summer making removal difficult if not impossible.

How do you Remove Magnolia Root System?

The roots of a mature magnolia are very long and shallow spreading out in all directions. They do not compete well with other plants for water and nutrients so they are prone to drying out if grown in dry soil. The best way to remove a magnolia is to dig it up. It is important to keep as much of the root system intact as possible. If there is damage, the plant will not be able to survive.

These shrubs can be easily transplanted to an area that is free of other plants and trees. If the transplant fails, it will be necessary to dig up the tree and return it to its original planting place. The location needs to have well-drained soil and a lot of room for root growth and expansion.

It should be placed in full sun.

How do you Prune Magnolia Root?

The roots of a young magnolia may be easily damaged. The best way to prune a magnolia is lopping off branches with loppers or a pruning saw. A shovel or spade can be used to remove the lower branches. Dead wood should be removed since it is prone to insect infestation. The plant needs to be watered in well after the operation.

How do you Plant A Magnolia?

It is not easy to plant a magnolia since this plant needs fertile soil and perfect conditions for growth. The best way to plant a magnolia is to follow the advice of professionals who have experience in this matter. The soil needs to be tested to make sure it has all the nutrients the plant will need for optimum growth.

You need to clear an area three or four times bigger than the rootball and remove competing vegetation such as grass and weeds by hand. Dig a hole three times deeper and four times wider than the container your magnolia came in. The lip of the container should be level with the ground.

Fill the bottom of the hole with gravel and rocks to prevent water from collecting and creating a muddy area.

Care Of A Mature Magnoila

The best way to care for a mature magnolia is to water it regularly during dry periods. This plant likes sun but will tolerate some shade. Large magnolias need to be pruned several times during the year to maintain their shape and structure.

The shrubs also need to be fertilized and given plant food monthly. This plant should be inspected twice a year for pests and diseases and treated accordingly.

Invasive Nature Of Magnoila:

The leaves and bark of this tree contain toxic substances that can poison animals if ingested. It also causes birth defects in humans. The fruit are not poisonous but are not considered good eating.

The biggest threat this tree poses is that it grows very quickly, takes over large areas of land and is very difficult to eradicate.

The Native American Indians used the bark and leaves to treat colds, headaches and stomach problems. The leaves were infused to create a black dye for leather and cloth. The flowers can be infused to create a yellow dye.

The wood can be used to make furniture and implements.

Sources & references used in this article:

Magnolia grandiflora by S Magnolia – 1994 –

Management of Pests, Plant Diseases and Abiotic Disorders of Magnolia Species in the Southeastern United States: A Review by GW Knox, WE Klingeman, M Paret… – Journal of …, 2012 –

Magnolia-Magnolia spp. by GW Knox, WE Klingeman, ML Paret, AF Fulcher – 2012 –

Magnolia grandiflora ‘Majestic Beauty’:’Majestic Beauty’Southern Magnolia1 by EF Gilman, DG Watson –

Magnolia grandi8ora: A propagation guide by MA Dirr – 1986 –

Adventitious rooting of stem cuttings of yellow-flowered Magnolia cultivars is influenced by time after budbreak and Indole-3-Butyric acid by J Sharma, GW Knox, ML Ishida – HortScience, 2006 –

_ Management of Pests, Plant Diseases and Abiotic Disorders of Magnolia Species in the Southeastern United. States: A Review1 by GW Knozrz, WE Klingeman, M Paret, A Fulchers – J. Environ. Hort, 2012 –

Magnolia grandiflora L. southern magnolia by KW Outcalt – Silvics of North America, 1990 –

Large trees establish more rapidly when transplanted bare root by G Watson, A Hewitt – Arboricultural Journal, 2020 – Taylor & Francis


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