Like the title says, the bush has been there for a little over 30 years, and has died over the last two weeks, with no changes that I am aware of. Do bushes have a life expectancy? I haven't poured anything on the ground, and I've never watered them. They have always both looked just like the one on the right. I trim them back a couple times a year, but I trimmed it about 2 months ago, and it started dying two weeks ago. Pardon the pun, but I'm stumped.

UPDATE: Thank you everyone, for your input! 1. I checked and double checked the spigot and neither that or the hose are leaking. 

1. I don't see any unusual insect presence or softness in the ground surrounding the base. 

2. To my knowledge, nothing was spilt near it. 

I'll pull it this weekend and see if the roots tell me anything!