Seed boxes recreate the natural environment with artificial day and night and corresponding temperature changes, after which "winter" arrives, and the seeds are stored at low temperatures. The process cannot be hurried, and it demands far more patience of the silviculturists than propagating the Taiwan red cypress or Taiwan cypress, whose seeds 'dormancy can be broken in a week or two given adequate water and light.
種子箱仿照自然，製造白天、夜晚，以日夜交互變溫處理，之後「冬天」降臨，再以低溫保存，過程全然急不得，比起紅檜、扁柏在水分、光線等條件充足下，一、二周即可打破種子休眠，紅豆杉需要種樹人更多的耐心。