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holy shit
So I’ve searched and searched and my wife and I watched a lot of YouTube timelapses and we couldn’t find one that grew that fast. Not saying it isn’t the max, but it’s probably very abnormal
Anecdotal, but I've seen banana plants push out leaves vertically nearly that fast at their peak growth. Each leaf can be close to 6ft long, maybe longer. They shoot straight up out of the top of the plant when they come out, so they do temporarily add that much height.
When the leave gets completely pushed out, it unfolds and leans to the side and in the end only adds a foot or less to the full height.
Not sure if that counts, but they are fun plants to have. I'm in Midwest America... so you don't have to be in a tropical area to grow them, but we do have to cut it down every year and cover it in mulch and leaves to protect it.
Our biggest gets to 16-18ft tall every year. One of it's children we've given away is a bit bigger.
wikipedia cites this book for reference
https://archive.org/details/amazingnumbersin0000flin
I feel like they'd feel pretty warm to the touch if they are growing that fast.
Well, they do feel warm to the touch, but bananas only grow in warm and humid climates, so everything feels that way.
I kinda feel like heat would be wasted energy that could be used to ｇｒｏｗ
I feel like bananas would be cold as hell if they were growing that fast.
Absorbing heat from hapless critters that happen to brush a banana leaf to g r o w
Fun fact! The farmers rely on this effect to supply supplemental meat in the growing season.