All The Flowers Disappeared On My Impatient Plant. What Could Have Caused This.

Question

The stems are still thete.

Answer 1

Rabbits are the likely culprits. These articles should help:

https://www.gardeningknowhow.com/plant-problems/pests/animals/keep-rabbits-out-of-gardens.htm

https://www.gardeningknowhow.com/plant-problems/pests/animals/plants-rabbits-dont-like.htm