If you don't mind me asking? Why do you want to train on a short grass strip?
It seems to me there is much more to learn at a towered airport while learning to fly?
I only landed on grass 2 times on the same day on the same strip while I was training. The rest on 6000' paved runway. I learned short soft takes offs and landings just fine there.
I now fly out of a 2800' asphalt strip which is 2 times as long as I need for a 172, not so much when I fly my buddy's arrow.. I taught my self to land on short grass strips after I earned my PPL. It was fun as hell and I am glad I learned on asphalt and gained some confidence on my own landing short. It was so rewarding. I visit most grass strips around me now. This one is 1700' long, 8I1 grass bumpy.
This afternoon landed at 8GK 5000' of brand new super smooth concrete, on top there was about 1.5-2" of snow. I was the first plane who landed there since last Friday when we got the snow. It is a public airport but no one goes there because there is nothing there, nothing. Only been open 6-8 months now. The snow was interesting, definitely could feel the drag landing and taking off. Learn something every time I fly I hope. Sorry no pictures of the snowy runway.
8I1 One Hot summer night right before sunset, the best time to fly.
here is 8GK before it was finished.
Take off roll at 8I1. tall grass and it close to 90°f this evening, hot. Fun times I now pretty much know what my plane can do.