The presence of dead branches is a problem that can usher homeowners into a state of panic. But don't lose hope. Remain calm and apply a little scrutiny, following the steps I provide in this answer.
The appearance of brown leaves out of season is always a troubling sight. Read the FAQ linked to above to learn why context is everything in addressing this problem.
Well, that depends. Don't fall into the solution-in-search-of-a-problem syndrome. Coffee grounds could help solve a certain problem, but first find out if you even have it! That problem is the subject of this FAQ.
There are, of course, many other types of specimens renowned for their blossoms that are available for residential landscaping. You can read about a number of the most popular ones here: