Banana Plant
Musa acuminata · Dwarf Cavendish
The big tropical statement plant is a giant herb, not a tree. Its "trunk" is no wood at all, just tightly rolled leaf bases. The indoor banana is almost always a dwarf cultivar, because a full banana is far too large for a room.
Family
Musaceae
Origin
Southeast Asia
In the wild
Forest clearings to 9 m
Indoors
0.8–2 m
Growth
Fast
With pets
Non-toxic
Where it's from
Tropical and subtropical Southeast Asia
A giant herb
The largest herbaceous flowering plant on Earth. Wild and standard species reach 6 to 9 m.
Outdoors: zones 9b–11
Tender and frost-killed. The hardy exception is Musa basjoo, root-hardy with heavy mulch.
The world's fourth food crop
Banana and plantain follow only rice, wheat and maize in global production.
The banana you eat is a clone
Edible bananas are seedless and sterile, so they are propagated only by division of suckers, never by seed. The entire global Cavendish crop is essentially one genetic individual. That is why a single fungus, Panama disease, already erased its predecessor the Gros Michel and now stalks the Cavendish itself.
Grown from pups
New shoots arise from the underground rhizome and carry on the line.
It fruits once, then dies
The parent stem dies after fruiting once and a sucker takes over.
Biologically fragile
Almost no genetic diversity makes the crop commercially secure but vulnerable to disease.
How to keep it
LightBright, full to indirect
Give it the brightest spot you have. Part shade makes it leggy and slow.
WaterKeep consistently moist
Thirsty. Little and often beats drought. Standing water rots the roots fast.
HumidityHigh, 50%+Low humidity browns the leaf edges and invites spider mites.
Temperature16–25°CChill-sensitive. Keep above 10°C; cold damages it below that.
SoilRich, free-drainingRich, organic, loam-based compost that drains well.
FeedingHeavy, in growing seasonA heavy feeder. A balanced liquid feed roughly monthly through the growing season.
DifficultyEasy to moderateEasy if its appetite for water, light and space is met.
With petsNon-toxicListed as non-toxic to dogs, cats and horses by the ASPCA.
PropagationDivision of suckersSeparate offsets from the rhizome in spring, each with some root attached.
RepottingOften while youngIt dislikes being root-bound. Vigorous plants may need potting up 2–3 times in the first year.
What the data says
What it costs
Common and cheap. The crop itself is mass-produced; only mild collector interest in variegates.
$15–40
Larger specimens run $50 to $120 and up by size. Variegated Musa and red-leaf species fetch a premium, nowhere near the aroid bubble.
IUCN · Least Concern
In the wild
An inverse twist on the usual story: the eaten banana is secure, while the wild gene pool quietly vanishes.
Musa acuminata is assessed as Least Concern, widespread and held in gene banks. But its survival as a crop depends on wild bananas that are being lost to forest clearing, including for oil palm. The houseplant is everywhere; the wild diversity that could save the crop is the part disappearing.
When it sulks
Brown, crispy leaf edgesLow humidity, underwatering, or dry hot air. The most common complaint.
Yellow lower leaves, mushy baseOverwatering and poor drainage leading to root or crown rot.
Torn, shredded leavesLargely normal. The big thin paddles split in handling, not a disease.
Leggy, pale, small leavesNot enough light.
Blackened, drooping leavesCold damage from exposure below about 10°C.
Varieties & company
The varieties
Dwarf CavendishSuper Dwarf CavendishMusa basjooZebrina (blood banana)Variegated Musa
Pairs with · keep apart from
Bird of ParadiseAlocasiaFiddle-Leaf FigSnake PlantZZ PlantCacti
A new plant, every week.
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