It's the middle of summer and I like to plant melons since they bring in some good money. For some reason, two of them withered even though they get watered everyday by my iridium sprinkler.
Why did they wither? The season hasn't changed with them planted (it's day 14 in my current summer). The same thing happened earlier with my poppy flowers as well which are also watered by a sprinkler.
Best Answer
Since you said that you think there was a thunderstorm recently, your plants may have died because lightning struck your crops. From this thread:
In order to prevent this, you'll need to build a lightning rod somewhere on your farm. It's worth noting that this won't completely protect your crops (apparently prior to build 1.07, they did virtually nothing to help).
As an aside, you can tell that it wasn't due to crows, as they will eat your crops, not leave a dead one.