Trees, Shrubs and Conifers: Tall weeping cherry fine last year still no leaves?, 1 by shellig

shellig wrote:
I had my house for sale last year and moved so I did not see the tree throughout the year so something may have happened I missed. This tree is in Russellville TN and is at least 6 feet tall and has bloomed beautifully every year and always looked healthy when I saw it. This year, still no leaves at all, and has not bloomed... no sign of life.
How do I know if it is hopeless (besides waiting) and what could have happened?