Answer: It sounds like a mysterious night-feeder. If you're in a rural area, mountain beaver could be munching on the iris stems. As for the holes in the clematis buds, a bud worm is the likely culprit. Without identifying the critter, it's difficult to make a recommendation for control. I'd go out at night with a flashlight and carefully inspect the plants. You may very well find what creature is doing all the damage. Hope so!
Q&A Library Searching Tips