Smells So Good

This tree sprouted up in our yard right in the middle of a cactus plant we had in a bucket. It's now about 15 foot tall. It's roots busted up the bucket and the cactus is still growing around it. This is the first year it sprouted these fuzzy things on it and the smell coming off of it is wonderful. I don't know what kind of tree it is, so if anyone knows, please tell me.