We have brought our Hibiscus in for the winter and put it in the basement where the temperature is about 60° as we have before, and it seems to be doing okay. But I noticed some of the leaves look wet but feel sticky instead. This is affecting only a few leaves, but do you have any idea what is going on?
Certified GKH Gardening Expert
This can be a definite sign of an aphid infestation. This is common with hibiscus. They are a preferred snack of the aphid. You can spray them with neem oil to help with this. Usually when taken indoors, it is normal for the plant to enter a semi dormant phase. It may start losing leaves as well. This is no cause for concern, and will actually help it to grow better in the spring.
Do not cut the dead growth out until right before it starts growing back in the spring. You can remove any falling leaves though.
Here is an article that will help: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/wintering-hibiscus-indoors-winter-care-for-hibiscus.htm