When removing dead branches, be certain to cut a few inches below the damaged area where healthy tissue is found. Recovery is normally rapid once cuts are made. Add mulch to the surface of beds in order to maintain a 2 to 3 inch layer on the soil surface beneath plants. Use coarse, undecomposed organic materials such as pine needles or bark. Any necessary pruning should be done after the flowering season is over, and before mid-June.
Irrigation is necessary for optimum growth and flowering .
During extended dry periods water thoroughly once each week. Newly installed plants will require more frequent irrigation. Based upon past weather patterns, establishing these kinds of plants in February would be comparable to drawing 1 card to a flush. Occasionally gardeners get by with planting in February, and are rewarded with earlier flowers and a productive vegetable garden. Don't do it, unless you are willing to risk having to do it all again in March.