| From the way you describe it, the Phal is very happy and you are taking good care of it. Phals are natural airplants and it's natural for them to send out roots which go over the side of the pot. I have one that I just repotted and first thing it did was to send out two roots over the top the pot.
These roots are covered in velamin which is what absorbs water from the air. I just spray the roots each morning so that they get some moisture as well.
If you put it into a pot that is too large, your medium will not dry properly increasing the chance of the roots staying wet leading to rot. What are you using for potting medium ?
As far as helping it to grow a spike, I'll let someone more experienced talk about that.
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Tom
Richardson, Texas
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