Ooooh, I see...so it only pops up when the growth has reached an inch in the background. Alright, that makes sense then.
But it's a bit confusing, that's why I brought it up.
Thanks for explaining it and maybe put it on a list ;-) - it's not exactly a priority, but it would make it more "logical" when playing in metric units at least ^_^ - which probably most of the Planet understands better than imperial *wink wink* ;-P
But, as I wrote already: the excitement factor is still there, even though I took a longer break from playing.