I like this site...I just found out that I have been overwatering my poor philodendren--i think it's a scandia--which is why the leaves have been falling off. (I also root-rotted and killed my partner's aloa vera...but that poor guy is beyond saving. Apparently our new house is not as dry as the apartment was...hence I don't need to water on a weekly basis.)

Anyway, my question is "now that I have 6 feet of green rope then 6 feet of yellow leaves and then 7 feet of lush greenery, what can I do?"

Will the vine sprout new leaves to cover up its barren stretch or should I cut the vine and reroot it where the new growth starts?

(I hate to lose my "monster" vine...I have it coiling around the dining room in 2 different directions.)

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the quiet ones are the ones who change the universe...the loud ones just take the credit

If overwatering is the cause of the leaf drop, then the roots are probably rotted and beyond recovery.

As Jiffy suggested, prune it all the way back to 2 -3 inch stems and start it over, I know you have a lot invested in your 19-foot philodendron, but its decline was inevitable. Unpruned vining plants eventually reach a point where they can no longer support any more leaves so they sacrifice the older leaves so they can continue to grow new ones at the ends of the vines. In fact, this may be what has happened with yours.

Tip cuttings with 4 to 6 leaves are the easiest to root in either water or in moist potting mix that is peat-based and very porous.