A pic if it helps.

Here is a link that might be useful: {{gwi:102305}}

Monstera needs some kind of support (a slab of wood, moss covered totem pole, etc.). Just loosely tie the Monstera vine to it with some jute rope or twist ties and the plant will eventually form aerial roots and gradually spread its roots unto the support. I've even had a philodendron fasten itself to a wall (without my help), climbing like ivy.

Hi Hornetwife,
Actually, I have to disagree with Njoasis on this one. Yours is very similar in stature to mine {{gwi:102306}} and I have had mine for about 2 years now. I painstakingly fashioned a homemade moss pole for mine and it sat there for a year neglected by Monstera. It preferred instead to put its aerial roots back into the pot, and instead of a gangly climbing plant, it produced a more bushy plant with larger leaves. I also water it throughly but sparingly, and also give it med-bright but filtered light. That's just what I do for mine, though. (That's an old pic from spring, my batteries are dead on my camera)
Good luck, I love these things!

Thank you for the tips. That is a lovely plant you have,Elfinn. I guess I will try it on a stick and see if it takes to it. I am still confused, though, on what size stick to use? Any ideas?

Hornet, for that particular Monstera, which tends to grow different than another Monsterea I have, that Monstera needs a thick, not thin stake. Any material would work.
Don't buy the little moss polls that attach onto each other..They don't stand erect, end up leaning. And by the time your plant reaches maturity, you'll have 10 moss poles attached to each other..It's not worth it.
They also sell tall, moss poles, but I've never seen one tall enough to hold most tall plants..though they may sell them where you live..
The poll Elfin's using looks sturdy enough to hold the plant, but let me tell you, this Monstera IS heavy when mature..Mine has fallen over several times. LOL..Find a thick piece of wood, set inside soil, then use ti's to attach stems/trunk to stick..Toni

In the wild, this plant uses its aerial roots to attach itself to the bark of trees. The plant must be trained to grow upright if you want the leaves to get larger and develop more splits. I am guessing that the moss poles don't work that well because they don't have a coarse enough texture for the roots to attach too. Like njoasis says, I've even had Pothos attach itself to a wall all by itself. Pothos will also grow larger leaves if trained upright. I have seen them even develop splits just like Monstera. The reason the leaves develop splits is because it is a natural defense against winds at the top of trees that the plant climbs. The wind will blow thru the leaves instead if tearing it. So I would try and find a piece of wood that has a very coarse texture...even bark on it if you can