A year and a half ago, I bought an approximately 1 year old banana tree for my parents' backyard. They planted it underneath their misting system, and it gets adequate water. The banana tree has doubled in size and grew two baby banana trees from its root system. One of the babies is the size of the banana tree when I bought it. It is definitely a happy tree!
Just a month ago or so, the eldest banana tree sprouted its big, red flower. Now the flower has at least half a dozen clusters of bananas, but the bananas are still small. I opened one banana up, still green, and there was hardly any flesh inside, and it was dry and bitter tasting. The largest bananas on the tree are only about 3 or 4 inches long, and very green. Our landscaper said that the bananas aren't likely to grow much larger.
Does anyone know if the bananas will grow much larger? Do we need to give it mulch or compost in order to boost banana growth? Do we leave the bananas on the tree until they turn yellow? I believe the type of banana tree is called Goldfinger, and the instructions said it should grow to 12 feet tall, but I believe the tree is about 7 feet tall right now. Perhaps the bananas will be bigger after the tree grows to its maximum size- then should we hack off all the bananas so that the tree can concentrate on growing? Thanks for any advice you can give!