DingoBongo

Strange thing here. I bought this plant a couple years ago already potted and fully grown. There's been no change in location, care, or anything but the past couple months the new leaves are getting a lot smaller. It's still growing quite quickly, putting out new leaves they're just a lot smaller than I'm used to.

One of the pups it put out around the same time I noticed this change had red patterns on the leaves, which I had never seen before on any pups or on the main plant. I dug this pup out a while back to pot it separately, and the new leaves of the main plant are still coming out small.

Any ideas what may be causing this?

Kingt82

Has the lighting changed? Have you been fertilizing it? Pictures would help.

DingoBongo

Lighting has only changed based on the seasons. I don't remember this happening last summer though. Here are some pictures. You can see the smaller leaves up top.

https://imgur.com/a/9TKYfYp

Valor_X

That looks more like a Super Dwarf Cavendish
Do you fertilize? Assuming it's getting adequate sun in that window then personally I would put it in a bigger container.
Also Cavendish bananas have the wine stain markings on the leaves when young so that's normal.

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Varieties I'm Growing

From Corm/Pup
Dwarf Cavendish ○ Super Dwarf Cavendish ○ Grand Nain ○ Niño ○ Manzano ○ Raja Puri ○ Tall Namwah ○ Blue Java ○ 1000 Fingers ○ Praying Hands ○ Orinoco ○ Variegated Florida ○ PR Red ○ California Gold ○ FHIA-03 Sweetheart

Plantains
Puerto Rican Dwarf Plantain ○ African Rhino Horn

From TC
Truly Tiny ○ Manzano ○ "Blue Java" ○ Dwarf Namwah ○ Thai Black ○ Veinte Cohol

DingoBongo

I just fertilized a couple days ago assuming that may be the issue. Not sure what's the best method / frequency / type of fertilizer to use. I'm not sure of the exact species as I just bought it from someone off Craigslist.