Jumping heights

[mollybella]

Hi guys I have a lovely warm blood mare 11years old who's done dressage solid for the past 7years she's never jumped in her life till we bought her.. She's now jumping 85cm in competitions and jumps 1.15 loose but doesn't clear the height with me riding, I'd some advice on how to get her using her bum more so that she gains height
Thanks guys x

 

[swilliam]

Grids with one stride or even bounces, getting higher as you go along?

 

[Nightmare before Christmas]

Grids, V poles, heavy poles/planks, bounces, dont overjump height wise until technique is correct

 

[mollybella]

Thanks for your reply.. We've done some grid work today but stuck at the 75cm height.. Will slowly build up the height and hope it improves x