Bad news first: If it seems totally crispy, I would be concerned that your Norfolk Island Pine may have died. Are any of the branches moist and flexible, or do the branches all seem dry and easily broken? It might help if you post a photo of it. Good news: The plant in your picture looks to me like what is often called a "Golden Pothos" (aka Epipremnum aurea). They are relatives of philodendrons but actually are not philos. Check this link to confirm its identity. The good news is that pothos are very tough plants that can survive a lot. Your pothos doesn't look to me like it is dying. I think it was just sunburned because its leaves were not adapted to such intense light when you put it outside. Sunburn is ugly to us but it doesn't really hurt the plant. The soil it is in looks a bit heavy and moist, so you want to be careful not to overwater it. The risk is that it might develop root rot if it is in a heavy soil that stays soggy too long. I personally do not put my houseplants outside because there is a risk that insect pests may find the plant outside. However, I'm not sure that is such a big deal when you only have a couple of plants, since it is easier to get rid of pest problems on plants when you only have one or two than if you have a lot like I do. Many people do find their plants grow better if they get a summer vacation, and they just spray the plant with a pesticide before they bring the plants inside during the fall to prevent insects from coming in with the plant. If you do decide to summer your plant outside, many indoor plants will do better if you start them off in a shady place outside, because even a shady spot outside is brighter than the level of light they received indoors. Once they are used to being in the shade you can move them somewhere sunny. The brown parts (the burned parts) will not turn green again, but over time it will grow more leaves to replace the brown ones. One nice thing about pothos is that it is extremely easy to propagate. You can clip off one of the longer vines on it (make sure you get a piece that has at least one brown nubbin on the stem - the brown nubbins are where roots forms). Put the vine in a glass of water, and put it in front of the window. Eventually the vine will grow some roots. I would recommend taking some cuttings so that, no matter what happens to the original plant, you'll still have some of it. Pothos cuttings can actually live in plain water for a pretty long time, so you don't have to be in a rush to pot them. This post was edited by summersunshine on Sat, May 10, 14 at 12:17

The best place to obtain them is ON NORFOLK ISLAND...IN THE SOUTH PACIFIC i say that because these beautiful trees are best left where they are naturally growing....on the island. Its much like taking a Christmas Tree out of the forest and subjecting it to what people do with them.....which, of course, ends with their death. Considering what happens to its eventual future....growing beyond the height of the room they are put into, it would be much better to buy another plant. So....go have a holiday....sail to the Island and see what you are saving.

It's most likely shock from the root surgery and re-potting that has caused the drooping and discoloration. The largest one probably took the brunt of the damage, so if the others were going to die, I'd expect them to already show symptoms. Just keep them watered deeply and regularly, especially if you're gonna get a freeze. The temps you mentioned should not hurt them. In my experience, Norfolk Pines are usually more hardy than they're given credit for. Just make sure to cover them with a sheet if you're expecting a freeze. It's really just a wait and see at this point. Other than making sure they're well watered and protected from freezing temperatures, there's nothing else to do but hope. This post was edited by Ruffles78 on Mon, Dec 2, 13 at 20:35

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.