First of all, @ Ano, all you need to do is lure one. Either of the rightmost or leftmost works well, since we can just use the trees as shields.
Realizations that Kurt can't make (Int & Wis 8):
#1, It occurs to me now, that Kurt, Pha, Zax, and Kong can all fly. Kurt's the only of them that doesn't have actual wings.
Jeremy can ride Ponyta. While this isn't flight, per se, +62 to jump is more than enough to simulate it.
So, really, if Kong carries Rabbit, then we should be able to just go around. (Rabbits Jump might be good, but not enough to stay out of bite-range.)
#2, As Pha said, leaving them upright, alert, and pissed, is not copacetic. Now, plants are not immune to subdual damage. Kurt, Jeremy, and his Pokémon are all quite good at inflicting that. Kong, Zax, & Rabbit can deal it too, with the -4 penalty on attack. So we can make these 'Pokémon' faint, if we want. @-10 with subdual would mean they would be unconscious for 10-11 hours.