Split Stalk Down Center

It will be all OK, as long as it is still attached to the main stem. The plant will "heal" itself and continue flowering without any issues. Resist the urge to cover up or fill the split with anything, as that will just encourage mould/fungus/disease to attack the "wound". One thing though, I would suggest to remove the wire and replace it with something with a bit of give/elasticity/stretch in it, otherwise as the plant grows, the (inflexible) wire may cut into the stem and this will cause death through "ring barking/girdling" as it stops the flow of water and nutrients up the stem/branch. Either something like "grafting" tape, elastic thread/tape or even pantyhose will work. Just try to be careful when replacing the wire that the split doesn't open up too much. Maybe support/tie up both sides both sides of the plant first, before removing the wire. Even if you just put a loop of string around the whole top section of the plant, that will work too, just be careful that she doesn't open up like a clam! Whichever way you decide on doing this, just try to prevent any further damage. Actually, I have had plants break branches before and have just left them without doing anything and the plant has continued to grow as though nothing had happened! Hope this helps.... Organoman.