The trait is completely random so you're very lucky to meet one same trait for three times. Possibility for that is below 5%. Time for lottery! XD Maybe we should consider make it less random so that these kind of things won't happen.
Both too dry and too wet soil will cause plant sick and dead, the best time to water it is when it's half wet, and the best place to place it is where the soil can be half wet.
Thank you so much for your feedback. I think we really need to have a hint system.