well most plants can be grown indoors for a long time but alot of them aren't really permanent residents , eventually they get too large or they just become unsuitable for whatever reason. the problem with using a pot that is neither small or big is that a plant still may become huge which makes it really difficult to repot. i always use big pots for bold specimen plants , for example i got a indoor banana which isn't too big because i got it in a really small pot, when im going to repot it im going to choose a very large tub - anything in between wouldn't be practical because it will still get huge and eventually gets too rootbound and i need to repot it again. Choose a good looking pot, square or round. wide or long , contrast coloured or plain. Get a decent looking pot that you think will fit this plant and its enviroment. repotting large specimen can be a pain in the ass, there is no way around it and it will make a mess. Alot of plants can be pruned to decrease size and weight and make repotting easier - this cannot be done with the norfolk pine, once you prune off and lower or middle branches they will not regrow or come back. Remember eventually these kinds of trees will lose lower branches just like most mature trees, lower branches that do not receive enough light because the upper branches are casting shade. if one branch drops that not a problem but when multiple lower branches droop and drop it needs feeding , repotting and a fitting watering schedule. one option of course would trying a garden center in you area or a professional horticulturalist.

Amccour, aside from how you treat the trunks, remember the Norfolk Island Pine is a tree that should be given space to grow. In a few years if you feel your ceiling is preventing it going up any futher, cutting it back at the top stops it growing....forever. Try to remove minimally any side branches because this is the beauty of the tree. Norfolk Island Pine is a living Christmas Tree...but don't consider putting tree lights on it. Tenderly hanging light decorations and tinsel is OK. Norfolk Island Pine is also a tree that must be kept a houseplant unless you reside in zone 9 or 10....and 9 can be iffy. Actually, some people say the best place to grow a Norfolk Island Pine.......is on Norfolk Island in the South Pacific. Your plant should be allowed to dry down somewhat between waterings and it will use a lot less water now when the sun is at its lowest. It will not appreciate too cold of water...so letting it sit overnight to gain room temperature is recommended. And don't let the branches touch the cold window glass. And water should not be from a well that is treated. As long as it is receiving light from a southern or western exposure it should do fine. Senga, you mention your room where you have your N.I.P. has a humidity level of 60 - 70%..... Is this by way of measurement of a hygrometer or just an estimate of what you think it is. The way I figure such a high level as that I suspect the walls and windows must be running down with moisture drops constantly. Thirty-five to forty percent is a common level of a home with a furnace on recording a temperature of 65 - 70º I'm just curious why you would have such a high humidity in a room. How do you attain such humidity. It speaks of running a humidifier to reach such level. Does this not cause problems of many sorts from other rooms as well.

True norfolk island pine have large spacing between branches and are symmetrical. Their needle like foliage on the branches are also long a narrow. Btw... you can buy them in stores during holidays. They are frequently mixed up but we do have one that is a true Norfork island pine bought at meijer. Another helpful tip is the branches along the main terminal come out growing upward and then may level out or droop. The cook's branches immediately grow outward or downward. N. Island pine are also known for the dark green foliage and less peeking bark as they are not actual pine trees but are tropical. First photo is of our norfolk. It is 4-5years. Sunburns easily in direct sun. Needs high humidity otherwise drooping like this occurs. It recently changed locations due to a move and is not happy. Second photo is foliage. The top foliage is a cook and the second foliage is a norfolk island. I hope this helps.

I put mine in the ground two weeks ago. It is a two year old tree that I bought Christmas of 08. I decided to take a chance and if I lose it I will get another. I had one several years back that got so big we were afraid it would damage the roof. A lady came by and said she had the perfect spot on her enclosed porch so I gave it to her pot and all. I saw her about 6 months later and asked how the tree was in its new home. She responded "You know that dumb tree died." Moral of the story, just plant it............ They do tend to get spider mites. The mites hate sprayed water. I take the water hose with the nozzle and spray pretty hard several times when I see some leaves turning brown.