How to Propagate Banana from Pups

10 minutes ago

5 min read

Bananas don't make you work for new plants. Leave one alone in a big pot for a season and it starts sending up little shoots around its base. Those are pups, and each one can become a new banana plant.

Ours is a Double Mahoi banana. We bought the original plant at an agriculture store, and the mother plant grew outdoors on the Quinta and always came back after winter. This year it didn't. Thankfully I had already propagated it. On August 25, 2026, I took one sucker off the Double Mahoi, a dwarf banana, and potted it up. That potted plant is already growing new suckers of its own, three at last count.

Group of Double Mahoi banana plants with large green leaves growing inside a greenhouse among tall grasses. — The Double Mahoi bananas grow in a circle inside the greenhouse, sharing space with lemongrass. This is the sheltered spot we use when nights drop toward freezing.

Here's how to tell when a pup is ready, how to separate it without killing it or the mother plant, and how to get it through its first winter in a Mediterranean climate.

What Banana Pups Are

A banana isn't a tree. It's a giant herb that grows from an underground stem called a corm. New shoots grow out of that corm, and those shoots are the pups. Each pup is a clone of the parent, so it will be the same variety.

Young Double Mahoi banana plant with several broad green leaves emerging from soil among tall grassy plants and dried stems. — A young Double Mahoi shoot pushes up among the lemongrass and dry mulch in the banana circle. These early leaves already show the broad shape of a true banana pup.

You'll see two kinds:

Sword pups have narrow, pointed leaves and a thick base. They're well connected to the corm and make the strongest new plants.

Water pups have broad leaves early and a small, thin base with little corm. They're weaker and often struggle once they're cut off.

When to Separate a Banana Pup

Wait. A pup cut too young has few roots of its own and often dies. The usual rule is to let it reach about 30 cm (1 foot) tall or more, with its own roots, before you take it. Bigger is safer.

Timing matters too. In a Mediterranean climate, late spring or early summer is the easiest time, when it's warm and the plant is growing fast. A pup cut in a cool, slow season sits longer with a fresh wound, and that's when rot gets in.

I don't stick to a fixed time. I separated this plant from its mother so I could bring the potted banana into the house for winter. In spring I'll take its new pups off and plant the main plant out.

How to Separate a Banana Pup

Water the pot the day before so the soil is moist and comes away easily.
Clear the soil around the pup to find where it joins the mother's corm.
Cut it off cleanly with a pointy spade or a knife, pushing straight down between the pup and the mother. Take a piece of corm and as many roots as you can.
Trim the leaves back if the pup is big, so it loses less water while new roots grow.
Drying the cut is optional. Some growers leave it in the shade for a few hours so the wound can seal before potting. I didn't. I potted mine straight into the large pot right away.
Pot it up at the same depth it was growing, in a free-draining mix.

I use a pointy spade. It slides down between pup and mother and cuts through the corm in one push.

Double Mahoi banana pup with exposed roots and soil resting on a shovel inside a weathered green wheelbarrow. — The separated pup sits on the pointy spade with its roots and a chunk of corm still attached. This is the clean cut I want before it goes into its own pot.

Potting and Aftercare

Use a pot big enough for a season of growth, with good drainage. Bananas like rich soil but hate sitting wet, and a soggy pot is the main way a fresh pup dies.

Mine went into a pot of about 50 liters (13 gallons) that had grown garlic before. I kept that soil and topped it up with a bit of extra potting soil.

Young banana plant with broad green leaves growing in a large black pot filled with dark soil. — The new pup stands in the large black pot I used for the August separation. The mix drains freely so the fresh cut does not sit wet.

Keep the new pup warm and in bright light but out of harsh midday sun for the first couple of weeks. Water when the top of the soil dries out. Don't panic if the old leaves brown and collapse. That's normal while the pup puts its energy into new roots, and fresh leaves should come from the center.

Winter Care on the Quinta

Bananas don't like cold. Frost damages the leaves, and a cold, wet pot can rot the corm. That's why the potted banana comes into the house for winter.

The greenhouse helps, but it isn't fully sealed. The bananas in the banana circle inside it, where they now share space with lemongrass, still get some frost damage when nights drop well below 0 °C (32 °F). What I'd like to build is a sheltered, south-facing, frost-free spot outside where a banana could get through winter in the ground.

In winter, water sparingly, keep the pot off the coldest floor if you can, and accept some leaf damage. As long as the corm is healthy, it will push new leaves in spring.

Herman's Tough Kraut Fixes: How to Propagate Banana from Pups

Banana pups are easy to come by, but a few things go wrong when people take them too early or treat them too kindly with water. Here are quick answers to the questions I hear most often when people propagate banana from pups.

Q: My pup wilted after I cut it off. Is it dead?

A: Probably not. Wilting is normal while it grows new roots. Give it shade and steady but light watering, and watch the center for a new leaf.

Q: The base of my pup turned soft and brown. What happened?

A: That's rot, usually from soil that stayed too wet or a pup cut in cold weather. Use a free-draining mix and separate pups in warm weather.

Q: Should I leave the pups on the mother plant?

A: You can. They'll grow into a clump. But many pups compete with the mother, so remove extras if you want the main plant to stay strong.

Q: Can I grow a pup with no roots?

A: Sometimes, but it's risky. Wait until it has roots of its own.

Q: Can a banana die over winter even if it always came back before?

A: Yes. Our Double Mahoi mother plant came back outdoors every year, until this year, when it didn't. Thankfully I had propagated it, so a potted plant from it lives on.

Final Thoughts on How to Propagate Banana from Pups

One banana in a pot is a small nursery waiting to happen. Let the pups grow, take them in warm weather with roots attached, and keep them out of soggy soil. Then the only question is where you'll put all the new bananas.