January 2017 - last edited January 2017
The 1/1 Pear Cub is played in front of a Wall-Nut.
The Pear cub dies.
The Grizzly Pear is played behind the Wall-Nut.
Pear Cub:
When destroyed, make a 5/4 Grizzly Pear here.
Sorry there's no screenshot (I'd need to take a series of them). This should be simple to reproduce.
Re:"possibly other auto-summons" -- Maybe there are other P/Z with similar abilities and behaviors.
January 2017
Yes, I've noticed this too. It is always placed behind any other plant in the lane.