Something is eating my impatiens plants. . . what can it be? I see no signs of insects on the plants.
Something Is Eating My Impatiens Plants
Certified GKH Gardening Expert
I would suspect the culprit to be slugs or snails. Not only will they devour plants quickly, especially bedding plants like impatiens, but they only come out at night, making it more difficult to catch them. You may not even see signs of their ever having been there, with exception to 'snail trail', the slimey, silvery trail they leave behind. These articles will help deter these pests, especially if you decide to replant: https://www.gardeningknowhow.com/plant-problems/pests/organic-snail-control-how-to-control-garden-snails.htm