I have looked up hosta and hoya 20 times in the last 10 years.
In a few months I forget that I have a few hosta, not hoya.
Oh my goodness, I read the thread topic and thought to myself, "Oh yes, all the time!!" ... but mixing up plant names is the least of my worries! I get that way with human names, too! I have friends named Natasha, Nataliya, and Tonya. I mess those up all the time, not to mention all the names I call my son, Nathan! It just gets worse every year... I'm starting to sound like Yogi what's his name.. uh Yogi the Bear... no that's not it... oh yeah... is it Yogi Berra?
"He hits from both sides of the plate. He's amphibious."