If a tree's been living indoors until now, probably the coldest week of the year or so, now would not be the time to put it outdoors. You'll have to keep it inside somehow until it's warmer out (consistently above freezing overnight) and hope for the best. Zachman - A "similar" tree could be anything, and may need different care. Can you post a picture?

everyone else is correct, bring it outside asap. i'm not sure where you are in arizona, but you are probably close to zone 7. your tree is most likely a japanese juniper, these really prefer to be in a colder zone, but as long as you pay close attention you can make it work. you will want to check the soil several times a day. gently dig down an inch or so and if it's still moist then let it be. if it is dry, give it a good soak. as you are watering it don't worry about getting it too wet, the soil and pot are designed to not hold too much water. misting it once or twice a day is not a bad idea either. here is a good reference for general care: http://www.bonsai-bci.com/species/garden-juniper.html

I'm in the beginning stages of growing my rosemary topiary. I began with a 4-pack of plants from the local grocery store's annual selection, planted 3 of them in large containers along with other annual flowers, and planted the straightest stemmed one in a 4 inch pot. I stripped off all the lower leaves and tiny branches and am presently waiting for it to grow to the point where I can start shaping it. I'm really glad I stumbled onto this post as it has given me a lot of good advice on how to care for the plant. It is presently outside and receives morning sun, then a bit of shade as the sun passes its highest point. I'm hopeful that I can successfully bring it indoors without too much of a shock. I was hoping to keep it going over winter in an east window. I suppose time will tell. I'd hate to kill it...

Ok first you should take the cactus out? I'm not sure if you have done that yet. That pot doesn't look like the best for cactus:(. You can weave towels cardboard whatever you have around the house to support it when it's laying on its side. You will probably need help. Once the cactus is out you can see what's really goin on. I'm gonna guess all the babies are an attempt of the cactus saving itself because they're all the same size. Sometimes I've noticed not the happiest cactus will do that. Now that your plant is out time to assess what's going on. Hopefully the roots are nice and healthy. If there is rot you need to be a surgeon and cut that mush off. The columns that have rot you can probably still save. Just cut up the column till you find good flesh. Then let callous for a couple weeks or until there is a nice scab on the end. Keep parts that are callousing in a shady dry spot. For this cactus I would get a terra cotta pot only an inch bigger than the one you have. Maybe even the same size considering you may have to cut rotten areas off. Succulents and cactus do not like to swim in their pots. They prefer to be in close quarters. Try to find a peatless cactus mix and if you can get some pumice if not than perlite. Start of mixing a ratio of half cactus mix and then half pumice or perlite. If you have a heavy hand with water than do more pumice/perlite. When you repot plant a little higher in the pot your cactus will thank you. When succulents sit to deep in a pot they become unhappy;). Once everything is in the pot, i'm talking about parts still attached to roots, don't water for at least a couple week. If it were mine I would wait till spring. The cuttings once calloused over plant in a separate pot or the same, but just don't water till roots form. No need to check them every day roots won't pop out for awhile and I mean a month+ don't be shocked if the cuttings take 2 months for roots to form. You will know they will startl ooking better. goodluck:). If I think of anything I will write again I'm sure there is something I let out. Oh ya sun keep away from the scorching sun while your plant is healing. Any questions feel free to ask people on here are very knowledgeable :).