Gabe15

You could try something like this for a banana sucker (leaves won't work), but they already root really easily in soil, so it would mainly be for the fun of watching the roots grow. I suppose it may work with extremely small water suckers to root if you are trying to grow those, but even those types of small, weak, banana plants can root fine in soil if they are kept moist.

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Growing bananas in Colorado, Washington, Hawaii since 2004. Commercial banana farmer, 200+ varieties.