Question: My mom's thriving gardenia started wilting, though the leaves are still green. It sits on a window sill. I'm sure it's getting winter drafts. Would the floor be warmer?
Answer:The floor may not be better since heat rises. Gardenias like bright, not direct, sunlight. Try placing the gardenia on a well-lit table away from the drafty window with a steady 62-63 degree temperature. Watering could also be an issue. Advise your mother to avoid over-watering the plant, especially now in the winter when it uses less. Water when the top 1-2 inches of soil dry out, rather than watering on a set schedule. Gardenias also like high humidity.