Ask the Expert: I have some problem with my lucky bamboo. Dear expert, I have some problem with my lucky bamboo. Leaves turn yellow. they are perfect three days ago. I have put them under the sun for 2-3 hours everyday for two days since this winter in Sydney is cold. It turns out like this. What can I do about it? is the problem assiciated with sun shine? please help me~ Ann Flower Shop Network Plant Expert: Winter sun can be very strong despite the cold. The combination of too much light and cold temperatures are causing the problem. The rapid changes in temperature can also be a problem for lucky bamboo. Instead of moving the plant in and out of the cold, find a place inside with a sufficient light source. Choose a room with some natural light. For a long time, I kept my lucky bamboo in a small bathroom with a little window. It received filtered light for about 4 hours a day and did very well. The yellow leaves probably will stay yellow and may even [...]