Originally Posted by
CritterMom
OK, every one of my digits is a "green thumb" so many answers here.
First, while they will climb them to get from place to place, pines, firs - conifers in general, are not a gray squirrel's happy place. They much prefer deciduous trees - hardwoods that shed their leaves in the fall. That is why he is "meh" about your little fir tree.
Second, deciduous fruit trees require a HUGE amount of sun to flower and fruit, and merely a TON of sun to simply survive. This is the reason that all of the "tree" type indoor plants are tropical, and why you don't see fruiting trees indoors unless you have a solarium of some kind.
Third, if you ignore all that and spend a bunch of $ to buy a tree, likely the first thing that will happen is that he will do what squirrels LOVE to do - strip the bark off and gnaw away the green cambium layer directly under it. If he goes all the way around the tree (he will) you now have a soon to die tree.
If there is an area where these grow, I would suggest you cut pieces and bring them home. Make sure you go over it thoroughly - I wash everything before it comes in because you can bring parasites in. It is starting to act sort of like Spring where I live and my Zeke will be getting pieces of maple shoots as they grow which are a huge treat.
With plants, make absolutely certain you are dealing with something that won't make him ill. Some plants are toxic, some plants are fine but the flowers are toxic, etc. First, you need to determine what it is, and not by the common name, but the Latin name. There are aps that will help with that. Once you determine the Latin name, google the name and the word "toxicity" and read it. My rule of thumb is that if any part is toxic to any living thing it doesn't come into my house.
I took a different tack with my indoor squirrels. Instead of constantly trying to make their area look like the wild, I did my own version of the things in the wild that they like. I took a long round dowel rod, cut about a thousand (exaggeration but it felt like it) several foot strips of polarfleece, and tied them to the dowel rod, very close together, to form a "fringe curtain." It is mounted to the roof of the cage and has a wide plank behind it. Zeke loves to lay on the plank with just his little face poking through the "leaves" of his curtain, peeking outside while remaining under cover from all the "predators." He has a kitty condo in my room to play on - it is his second since they get very grubby (look on Ebay - best prices). The last one I threw out I scavenged all of the rope wrapped poles from, attached them together, and made a vertical "tree trunk" he can climb in his enclosure. They like to get behind stuff and peek out - but it doesn't have to be branches and leaves. They like to climb but it doesn't have to be a tree. Heck, a cardboard box will offer tons of fun (and a big mess).
The desire to decorate like it is wild is more a human thing than anything else. Considering the fact that they will move into your shed, garage, attic, or any other protected, covered shelter in a heartbeat if they can, I decorate with an eye toward giving him the coverage and recreation he wants in a way that allows me to keep it clean and reasonably hygienic.