The Botanical garden is a garden located in Hong Kong.
After Amanda Waller tried to have Oliver Queen and the Yamashiro family killed, an attempt that failed, Oliver and Akio got separated from Maseo and Tatsu. The two wandered around Hong Kong for awhile, Akio remembered that his parents told him to go there if he ever got separated from them. Akio told Oliver about it and they got there, only to find the garden surrounded by A.R.G.U.S. agents and the two quickly left.