Take her, she may suprise you!!! She would need the communication of other dogs .....
When you get to the park you'll want to watch for several things: Are the other owners watching/controlling their dogs? Sadly, some bring their dogs there to just harrass and bully the other dogs and burn off some energy. Are the dogs really playing? Good play should have good amounts of role reversals....on top, then on bottom; chaser, then chasee. Are the dogs well mannered/socialized? Respecting another dogs desire to not play.
Did the owners bring water for their dogs? Maybe even a first aid kit? Do the owners have good control...especially recall?
Those are just a few of the things to watch for. You might try different times of the day to get into a good group.