I disagree with some of the reviews that the outdoor gardens are not affected by the winter although the concepts of the landscapes are excellent. The lake in the middle of the Chinese Garden was frozen, lots of staffs were wading through the icy water to clear the mess. Many of the attractions in the Japanese Garden were wrapped up. In a way it is understandable but just that it was kind of disappointing, but that's the best that one could get during this time of the year. Anyway the insectarium is worth visiting, and I just realize that many of the bugs and insects displayed (some live ones as well) are from my country Malaysia. The greenhouses were nice, especially the bonsai plants although many other greenhouses and exhibitions were closed too.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.