Hi.I bought a fuschia about 16 days ago. The pot was changed in the store and I brought it home. The leaves are yellowing from the bottom, there are some brown spots on leaves,and the buds don’t open. The weather is cool now but dry. and I water it when the soil is dry. I spray water on leaves twice a day. It is not under direct sunlight.I cut all yellow leaves so I have no picture of them.
I would not spray so often. This sounds like the start of a fungal infection. I would apply peroxide to your water the next time that you water. Replace 1/4 of your water with peroxide, and this can help. This article will offer more information on the care of these: https://www.gardeningknowhow.com/ornamental/flowers/fuchsia/growing-fuchsia-flower.htm