i Register
In some senses, miffy is marked as informal, dated. Watch for register when choosing this word.
adj
Easily irritated or offended.
Particular; fussy.
"Over-watering" is not the result of putting on too much water at one time, but from watering too often. Daily sprinkling or turning the hose on root areas can be most injurious — especially to some miffy plants like rhododendrons and dogwoods.