Question
 My corn plant is about 6 ft. tall and my home ceiling is not high enough for this plant. I want to know can I set it outside on the porch out of the wind and hard sun.
  There is a lot of space from the top soil to the top of the stump, it has 2 arms growing from the old cut off. what I want to know is can it be cut down to elimanate all the space it has down on the bottom.  Or what other plant can I plant in it to fill out the empty space.
 I have well water and I do water it when ever I see the leaves drooping more than usuall. I have it setting in a corner in my kitchen away from the hard sunlite.  I believe the pot size could b bigger than 12 inches, but has been in it for 2 yrs.   I would send a picture, but I do not have a digital camera.
            I wait for ur response and for ur help

Answer
Teresa,

What you need to do is air layer the 2 arms off and pot them up in the same pot you have it in now with new soil. Then you will have 2 separate plants in the pot on their own roots with no space between the bottom of the plant and the soil. This pot is plenty big enough for both plants since this plant actually lies to be somewhat rootbound and it will sty healthier if it is.

In fact when it is time to cut off the air layers you can lay them aside for a little bit with the plastic still wrapped around their new roots, then cut the original plant down to just above the surface of the soil. Unpot the roots of the original plant and carefully remove the roots from the soil. I would either discard the soil by putting it on my garden or in my compost bin and start with fresh potting soil. I mix my potting soil with extra perlite for better aeration in the soil and healthier plant, 2 parts of potting soil to 1 part of perlite.

Then I would trim the roots of the original plant down to where it would take up no more than half or a third of the space of the pot and pot it up with the 2 air layered arms of the plant. When you do the air layers make sure you do the at different lengths so one will be 5 foot tall and 1 will be 4 foot tall. Those are just estimates but it makesw the plant look more interesting if each plant is a different height. The original roots will send out a new arm, that's why I want you to cut that down to only 6 inches tall and it will soon catch up to the bigger air layers because it has a larger root syster to start with, but they will catch up on roots quicly too.

You will find complete air layering instructions with pictures at the following website. It is an easy process and your cuttings should have enough roots to separate them in 4-6 weeks. If you use clear plastic wrap you can see when the layer is full of roots.

http://www.extension.iastate.edu/Publications/PM268.pdf

If you have any more questions feel free to write again. Good luck.

Darlene