Banana Double Mahoi

S & J Nursery’s Guide to 

Growing Double Mahoi Banana Plants

in Northeast Florida Gardens

Double Mahoi Banana Plants For Northeast Florida Gardens Origin:

Banana plants are an herbaceous plant and although most commonly referred to as a tree the “trunk” of the plant is a collection of the bases of the large banana leaf stalks.

They are native to Southeast Asia and have been cultivated and carried throughout the tropics and subtropical portions of the world for thousands of years.

Double Mahoi is a sport or mutation of a Dwarf Cavendish banana plant. It produces two stalks of bananas from one stem! Musa acuminata AAA ‘Double Mahoi’ like other Cavendish banana selections produce seedless fruits and can only be reproduced vegetatively. Our banana plants here at S & J Nursery are produced from tissue culture so that you get an exact replica of the parent plant that is disease free.

Sun Exposure for the Double Mahoi Banana:

In Northeast Florida, plant Banana plants in a full sun or partial shade location preferably on the south side of the home and away from frost prone areas of the landscape and high winds that will damage the foliage.

double mahoi banana plant young leaf on tissue culture plantFoliage of the Double Mahoi Banana Tree / Plant:

Our tissue cultured Double Mahoi banana plants here at S & J Nursery show hints of purple striping as juvenile plants but will mature to large solid green leaves. The trunks (or more correctly pseudostem)on the Double Mahoi banana plant are known for their breadth growing up to a foot in diameter.

Soil Preference for the Double Mahoi Banana for Northeast Florida:

When it comes to planting banana’s in Northeast Florida I can not say this one thing enough, compost, compost and more compost! In fact the healthiest, best producing banana plants I have ever seen are growing right out of the compost pile on our tree farm in the Switzerland area of St. Johns county Florida.

Amend your soil generously with compost when planting banana plants. Dig your 3 ft by 3 ft hole or even bigger if you can, and back fill the area around your new banana plant with 50 percent compost and 50 percent native soil that you removed from the hole while digging.

Be sure to locate your banana in an area where it can receive supplemental irrigation and away from flood prone areas of your landscape. Banana’s need moist but well draining soils.

Size of the Double Mahoi Banana Plant When Mature:

The mature size on a Double Mahoi banana plant is 7-8 ft in height and the foliage will form a clump 4-6 ft wide.

Pruning Double Mahoi Banana Plants for the Northeast Florida Landscape:

Banana plants form clumps by sending up suckers off the rhizome that forms underground. The main stem will die after flowering and forming fruits and the side shoots will replace it.

Prune out the center stem that has died and leave one to three well spaced stems that are directly connected to the main stem to grow up and replace it. Leaving to many suckers to grow will result in poor fruit production.

IMPORTANT: (Be careful not to leave water shoots (a sucker close to, but only superficially attached to the main stem)that will emerge at a distance from the main stem, these are not productive shoots and should always be removed, only keep shoots that are directly connected to the flowering base.)

Blooms and Fruit of Double Mahoi Banana Plant for Northeast Florida Landscape:

Double Mahoi banana plants are named for the fact that the pseudostem or stalk of the plant will produce two separate blooms and fruit on one stalk! Mahoi means twin in Hawaiian.

Although rare, double Mahoi banana plants have been known to produce more than two flowering and fruiting stalks.

Double Mahoi banana plants produce medium sized fruits that are very sweet. 

Water and Fertilizer Requirements of the Double Mahoi Banana Plant:

Banana plants grow quickly and require allot of water and fertilizer to sustain that tremendous growth.

Water daily after planting your newly planted banana from and S & J Nursery container for the first two to three weeks being sure to supply your new plant all the water it can possibly need to get growing. Taper your water back to every other day then every third day then to once a week making sure to supply at least an inch to an inch and a half of water each week during the growing season.

The fertilizer recommendation varies depending on what professional you talk to, I guess we all have our opinions and what works best for us, we continue to use and recommend to others. Some recommend a fertilizer N-P-K ratio of 3-1-6 ( your fertilizer bag would say 6-2-12 or a similar ratio to 3-1-6) Others say to use a well balanced plant food keeping the N-P-K ratio at around 8-10-8. And then other garden authors say to use a 6-6-6 fertilizer.

One theme is constant among them all…fertilize frequently and heavily! Some recommend monthly some every other month, but all will tell you that bananas are heavy feeders and a mature banana plant may require as much as 1-2 lbs per application! Start with 1/4 of a lb on small plants and increase the amount applied monthly as the plant grows.

You may be able to locate a fertilizer formulated specifically for tropical plants or banana plants, I use Citrus fertilizer mixed with Milorganite on mine and get good results.

Harvesting your Banana Plants Fruits:

 Banana fruits mature slowly on the tree, some taking months after forming before the first hand begins to show any yellowing. Be sure to leave the fruit on the tree until you see the first set of bananas start to show some color before removing them from the tree to allow them to finish ripening indoors.