Welcome! It will help if you can get a picture. There aren't any 'plant bandages' that I am away of. You could try some grafting wax, or a slit straw to cover the wound if the part is still hanging on (if it wasn't totally severed from the plant). Putting a support of some sort (like a bamboo cane) and clipping the plant to it (with a hair clip) to keep the wound straight will help also.
When you say wood support, is it a part of the plant (like a trunk or branch?) or is it a support to support the plant (like a stick, or a trellis, etc.)? Almost every plant can make new roots from a piece of itself (ie: you can stick a
spring of fresh mint in a pot of dirt and it'll form roots and grow) but it's not always successful depending on the plant you're doing it to (we call it taking a 'cutting') The new plant will grow and bloom the same colour as the plant where the cutting was taken from.
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