Yes - we are tired of the cold in Tucson. And we are tired of our sad looking plants. However, I ask you to wait just a little longer before pruning them back. Historically our last freeze averages around March 15. We have some 36 degree temperatures forecasted for the week of February 25. Looking at March record lows, many were sub-28 degrees.
If you prune now, you tell your plants it is time to start growing. Then, if we are hit with an unseasonably low, that new growth will get it. This weakens the plant and puts it into jeopardy.
So choose wisely. If you are willing to take a risk with some plants, go ahead and prune. But if you can wait another two to three weeks, please do so and then watch the long range forecast before you commit your weekend to the job.