You can plant trees and shrubs year round down here, fall ( Oct) being best, then dead of winter , then early spring( now), summer is worst time to plant trees and shrubs. Don't plant summer annuals yet, like petunias, marigolds and such, wait till after April 15th as a general rule! You can mulch of course, prune roses and butterfly bushes, if you have them in February. Pruning on trees and shrubs should be done in dead of winter, before they break dormancy, but now would probably be ok. Anything can be planted in pots now, except summer annuals. You can plant pansies now, and they will last through about May, they are winter annuals and die when it gets consistently in the 80s, unless you have fescue grass, don't do anything besides put down pre emergent now!