I brought a gardenia from store few weeks back. It looked very healthy. However, live in northern Germany and here winter days are really small and 95% of the time, it is extremely cloudy. The weather this year in winter is approximately -1 to 6 degrees centigrade. I have only two windowsills but, unfortunately there are heater under them and no other place in my house gets much sunlight. So, I had to put the plant on the windowsill near the heater. I know it needs humidity and warm temperature. So, for humidity, I used water pebble tray under the plant.
My plant has several new gorgeous green leaves, but all the buds are dropping before opening. I water once a week (if I find it dry after touching the soil) and there is no way I provide proper sunlight that it needs. I don't think I am overwatering, because, new leaves are there and they look really healthy. Also, I didn't use any fertilizer after I brought this plant to home.
Could anyone please help me to grow flowers on this plant?