Julie Mango Grow Guide

Also known as ‘Saint Julian,’ the Julie Mango is one of the most popular mangos in the Caribbean.

Its excellent flavor and growing qualities have made it a favorite among mango enthusiasts. Additionally, its genetics have contributed to the development of some of today’s most popular mango varieties, including my personal favorite.

With that being said, this grow guide will cover everything that you need to know about Julie Mango:

Table of Contents

Julie Mango Tree Growth Habit & Fruit Production

The Julie Mango is considered a small-sized mango tree.

Julie Mango Trees have a low vigor & spreading growth habit that produces a very compact and dense canopy. In fact, Julie is considered a true dwarf mango tree that can realistically be kept between 8 – 10 feet tall in Florida. As a result, Julie would do well long-term in containers and would be considered a “condo” mango.

Julie Mango Bark Graft
Julie Mango Bark Graft

However, an interesting tidbit about Julie Mangos is that when they are grown in the Caribbean (where they are very popular), they can slowly reach impressive heights of 30 feet or more.

Julie’s fruit production consistently ranges from average to goodAccording to Purdue University, Julie Mango Trees typically produce 30% to 50% hermaphroditic flowers, which contributes to their moderate fruit production. While Julie Mangos are not known for heavy fruit production, one way to potentially increase fruit yield is to plant another mango tree next to the Julie, preferably another Julie, so that they bloom simultaneously.

The mangos themselves are small-sized, somewhat flat fruits with a small point or beak at the base, typically weighing between 0.5 and 1 lb.

Julie Mango Flavor Profile

Julie Mangos are considered an Indian Flavored Mango.

Julie Mangos are highly aromatic, with a classic, strong mango scent. When cut open, they will reveal a deep orange, fiberless flesh that has a soft and melting texture. While unripe Julie Mangos may have a slight amount of fiber, the texture gradually becomes creamier as they ripen.

Let’s talk taste.

Julie Mangos offer a rich, sweet, and complex flavor, reminiscent of other Indian-flavored mangos. More precisely, Julie boasts a ‘Caribbean sweet spice’ taste, accompanied by a subtle tartness and a hint of resin. Depending on one’s taste buds, one may detect tangy notes of citrus, pineapple, or coconut. In my personal experience, Julie definitely has a noticeable coconut aftertaste.

Side Note: If you appreciate the rich and complex flavors of Julie Mango, you might also enjoy another Jamaican favorite: the East Indian Mango.

A Ripe Julie Mango with a bite taken out of it
Image Credit: Ak Cole Beats

However, it’s important to note that Julie Mangos are known to develop off-flavors rather quickly. In countries like Jamaica and Trinidad, they are typically enjoyed on the same day they fall from the tree, as many believe this is when the fruit is at its peak flavor.

Finally, it’s worth noting that Julie Mangos produce monoembryonic seeds, which means that planting a seed from a Julie Mango won’t yield another Julie Mango Tree.

Julie Mango Season (And When To Pick)

Julie Mangos are considered a mid-season mango (June – July).

With that being said, the best time to pick Julie Mangos are when they are mature and beginning to ripen on the tree. From a color perspective, this is when the fruit is beginning to show signs of yellow color break. Julie is perfectly ripe when the majority of the fruit transitions to a greenish-yellow color.

While Julie can sometimes develop a red blush, it’s important to remember that a mango’s blush has nothing to do with the fruit’s ripeness. A rule of thumb to remember is that More Sun = More Blush, Less Sun = Less Blush.

As we mentioned earlier, Julie is usually at its peak flavor when it ripens on the tree and then falls. Due to its dwarf growth habit, the fruit is less likely to be damaged or bruised upon dropping.

If you prefer not to let your fruit drop, that’s perfectly fine. When it comes to harvesting Julie, it’s generally better to pick them when they’re underripe rather than overripe. This is because when the fruit is underripe, it tends to be more forgiving and usually doesn’t develop off-flavors. However, if the fruit is allowed to overripen, there’s a higher likelihood that it will develop undesirable flavors.

An Overripe Julie Mango
Image Credit: D’s Fruit Trees LLC

Aside from color, another key characteristic to consider is the fruit’s size: Is the fruit nice and full?

Finally, when in doubt, one bulletproof method for determining Julie’s ripeness is by examining the fruit’s stem. If the stem is completely dry, nine times out of ten, the fruit is usually perfect and ready to be picked.

Julie Mango Disease Resistance

Julie Mango is susceptible to Anthracnose and Powdery Mildew. As a result, I would refrain from planting Julie in very humid areas with limited air flow (such as the Florida Interior). 

That being said, Julie can thrive in yards closer to the coast or in drier areas.

Julie Mango History

Julie was first introduced to the United States from Trinidad in 1915.

Julie is the parent of Little Gem, Super Julie (also known as J-12 and Fairchild Ruby), Dwarf Hawaiian, Sophie Fry, Graham & Juliette (also known as HE-4). Through the Sophie Fry lineage, Julie is a grandparent of Carrie and a great-grandparent to Angie, Ugly Betty, and Cecilove.

Julie Mango Tree For Sale

Julie is extremely common in the Florida nursery trade. However, I have noticed that Super Julie is more commonly available due to its increased disease resistance.

With that being said, if you are unable to find one at a local nursery, your next best option is checking out Tropical Acres Farms (not sponsored). They are the only legit place online (from my experience) that you are getting exactly what you are paying for. 

They have over 300 varieties of mangos available. You can either order budwood to graft yourself or submit a grafting request to have a grafted tree created for you. They do ship!

Conclusion

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If you have any questions regarding anything mentioned in this grow guide, please comment them below! This way, others can also benefit from the answer to the same question. For any other questions or growing tips that you think may be helpful, feel free to use the contact form and drop me a line.

Thank you for reading! 🙂

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Matthew Rowlings

I have an Associates Degree in Biology from the University of Florida and am also an active Florida Master Gardener. I am located in Central Florida (Zone 10A) and have 6+ years of experience with growing 20+ types of tropical trees. You can learn more about me and why I started Tropical Tree Guide on my about page.

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