The Nandina (the shrub with the red berry clusters) is showing signs of winterburn, which is very typical after the kind of winter we just had, with periods of sub-freezing weather and an ongoing drought. We've seen many examples of Nandina damaged far worse than what your pictures show, which is almost inconsequential. No action is needed, but you can cut the stems down near the ground if you want to rejuvenate the plant. That said, Nandina is an invasive species and we do not recommend that it be grown, so if you are amenable, we suggest you replace it with another species instead.

The Japanese Holly is hard to diagnose but it might be affected by Thielaviopsis, a fairly common fungal infection that can take advantage of plants stressed by environmental conditions. This species of holly is a common victim, and can be predisposed to that disease when it's growing in soil that is either kept too wet (from soil compaction, poor drainage, or over-watering, like from an influx of water from a nearby roof downspout), soil that is not acidic enough, or over-fertilization. There is no cure for that infection, but you can prune out the brown, dead branches and monitor the plant for any further symptom development. You can learn more on the linked page.

We can't identify the shrub in the third PDF file (shrub #5). Its damage looks like winterburn, and if so, the affected leaves will fall off on their own after new growth emerges later in spring. All that can be done in the meantime is reduce any drought stress on plants by monitoring them for watering needs and irrigating periodically if the soil gets too dry.

Miri

Thank you, Miri.   Very helpful!!  Sincerely appreciate your guidance. 

You're welcome!