I had a similar problem where you had to walk over what looked like blue bell leafs (they had just started showing), so I wrote an email to the cache owner voicing my concerns.
They said they would monitor the situation and move it if there was too much damage.
On another situation, I was looking for a hide spot for one of my caches but one good spot I discounted, as I knew white bells grew there and didn't want them to get damaged.