Re: Coffee Grounds?
A couple of years ago I saw a Cordyline in flower at a garden center in Florida. I had never before seen one in bloom, so I asked the greenhouse owner what she had done. She said she poured her cold, leftover coffee on it. When I returned home, I started putting my leftover coffee on my Hawaiian Ti plants. This past winter, they bloomed.
I have no idea whether cold coffee would be beneficial for banana plants or whether it would encourage flowering, but it seems to work on Ti.
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