Fruits

How to Plant, Grow, and Care for ‘Glenn’ Mango Trees

‘Glenn’ Mango trees are great producers of mild-tasting, delicious and aromatic fruits. Check out this guide as gardening expert Melissa Strauss tells you what you need to know to get this plant off on the right foot in your space.

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sweet and delicious, mangos are a tropical fruit with tons of personality and just a hint of spice. These stone fruits are best known for their bright orange flesh and syrupy-sweet flavor with peppery undertones. There are several hundred varieties of this fruit in cultivation around the world. Let’s talk about one of the sweetest varieties around, the ‘Glenn’ mango.

What is a Glenn Mango Tree?
‘Glenn’ is a variety of mango tree that comes from a seed planted in Miami, Florida, in 1940. It ended up on land belonging to a man named Roscoe E. Glenn. Initially, it was not especially popular. Although the fruits were good quality, they had some issues in terms of storage.

Over time, the tree gained notoriety for its popular characteristics and became more widely propagated. It is more disease-resistant than some other varieties. It also takes well to pruning, so it is easy to maintain at a manageable height. This makes harvesting the fruit much easier. Although the tree will reach up to 30 feet tall if left to its own devices, it makes a good container tree.

There has been some confusion over the lineage of this tree. The seedling was first publicized as the offspring of the ‘Haden’ mango. Glenn himself was unsure of this. He felt that the seed had come from a ‘Saigon’ mango. Many of its traits point to ‘Haden’ as the source of this cultivar, though.

Native Area
To determine the ultimate native range of this tree, we need to look at its potential lineage. If it was the offspring of a ‘Haden’ mango, is it a descendant of the ‘Malgova’ mango, this tree has its origin in South India.

If, however, the tree descended from a ‘Saigon’ mango, it has a different heritage. ‘Saigon,’ as the name suggests, is native to Vietnam. It came to Miami in 1902.

The place most commonly recognized as the home of this tree is Miami, Florida. Whether the parent was ‘Haden’ or ‘Saigon,’ the first recognized ‘Glenn’ mango grew in Miami.

Characteristics
The tree can grow quite tall if allowed to grow unchecked, but most growers maintain a smaller size by pruning. It is easy to maintain at about ten feet tall. The canopy has a rounded shape and dense foliage. It’s an attractive landscape tree that produces a moderate to large crop every year after it matures (three to four years).

The leaves are long and lanceolate. When they first unfurl, they have a pink cast, which quickly fades to lime green. As the foliage ages, it thickens and deepens in color to a dark, glossy green. Mango flowers closely resemble those of an avocado tree. The branching inflorescence has slender stems that bear a great number of small green blossoms.

The fruits of this variety are oblong and smooth. They ripen early in the season and are best eaten while yellow. As they continue to ripen, the fruit will first turn yellow and then take on a red blush, usually on one side. You can still eat them at this point, but the flavor will be more acidic.

In general, the flesh is soft and lower in fiber than other mangoes. This makes it easy to eat, as you can scoop it out of the skin with a spoon. The flavor is milder than most mangoes. If you like a strong-tasting mango with a peppery finish, ‘Alphonso’ has a more potent flavor profile. ‘Glenn’ is rich and sweet with a wonderful creamy texture. The skin of the fruits is delectably aromatic.

Propagation
Mango tree propagation can take many forms. It is possible to propagate by budding, inarching, and air-layering. However, the most common forms of propagation are from seed.