Banana Plant vs. Banana Tree — What's the Difference?
People universally refer to bananas as "trees," but they are not trees at all. A banana plant is actually the world's largest herbaceous (non-woody) plant. Understanding this distinction is more than botanical trivia — it affects how you grow, care for, and propagate them.
Why It's Not a Tree
Trees have woody trunks made of secondary growth tissue (cambium that produces wood). Banana "trunks" are pseudostems — tightly rolled layers of leaf sheaths, similar to how an onion is structured. If you cut through a banana pseudostem, you see concentric leaf layers with no wood anywhere. The pseudostem is strong but entirely herbaceous.
The True Stem
The actual stem of a banana plant is the underground rhizome (also called a corm). This fleshy, underground structure is where all growth originates — both the pseudostem and the roots grow from it. The flower stalk eventually pushes up through the center of the pseudostem from the rhizome to emerge at the top.
Why This Matters for Growing
- Propagation — Since there's no woody tissue, you can't take cuttings like you would from a tree. Banana plants are propagated by dividing pups from the rhizome, by rhizome division, or by tissue culture.
- Overwintering — The pseudostem dies easily in freezing temperatures because it's not woody. But the underground rhizome can survive much colder conditions with insulation. This is why Musa Basjoo survives zone 4 winters — the rhizome lives on even when everything above ground freezes. See Overwintering.
- Fruiting — Each pseudostem fruits only once and then dies (monocarpic). A tree would keep fruiting year after year from the same trunk. With bananas, the next generation of pups takes over. See Pruning and Removing Pups.
So next time someone says "banana tree," you'll know better — but don't worry, even banana growers use the term casually. The plant doesn't mind what you call it.