Biggest Philodendron in town..

There could be larger ones, you haven't look in everyone's back yard. lol! I'm just being start!

This one is huge. On hardy palm board you can see the full size photo.
I've seen some as tall...climbing a telephone poll in Berkeley with a mass of roots hugging the pole..but nowhere as near a behemoth as this one overall.
I did see one in Santa Barbara much taller then this. But,it was enveloped by a Bougainvillea so ..tall but not massive.

I can't believe how many grammatical errors I made in that last comment! I don't think I had my glasses on. lol!

I commonly see this one and the P. evansii variety here as very large plants. They are very beautiful!