This whole apple thing is a bit weird, admittedly. There is little we can do about it, but in general conversation Japanese green apples are called ‘blue apples’. Absolutely no-one says 緑のりんご midori no ringo. People would look at you and think you’re missing the plot somewhere. So let’s not miss the plot and join them in their confusion, but deep-down we know better! Ha-ha!
“Little blue apples in the summertime…”
– nah… just not the same…