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荸荠的匍匐茎是陆续发生的，其数目也不断增加，在杭州气候条件下，大约到９月中、下旬基本不再增加。匍匐茎发生后，便开始伸长生长，接着以横向膨大生长为主。 球茎大量形成时间在９月中、下旬，以后各时期也有新球茎形成。单个球茎从开始膨大到停止膨大约经历７０天，其中生长最快的时间为球茎开始膨大后２０天左右和４０～７０天，其间经历一个体积和重量增加的“快－慢－快”过程。 荸荠植株生长过程中干物质的分配情况是：球茎形成前主要分配给叶状茎和根系；球茎开始形成至淀粉快速积累期，主要分配给叶状茎和球茎；淀粉快速积累期后，主要分配到球茎中．在所有器官中，叶状茎中干物质的分配率为最高。
Water chestnuts stolons occur one after another, the number is also increasing, in Hangzhou climatic conditions, to about mid-September, the basic no longer increase. After the stolons have occurred, they begin to grow and then grow mainly in the transverse direction. Large number of bulbs formed in September, late, after each period there are new bulbs formed. Single bulbs swelled from the beginning to the end of expansion about 70 days, of which the fastest growing time was about 20 days after bulging bulbs and 40 to 70 days, during which they experienced a volume and weight increase in the “fast - slow - fast” process. The distribution of dry matter during the growth of the water chestnut was as follows: the bulbs were mainly distributed to the leaf-shaped stems and roots before the formation of bulbs; the bulbs began to form during the rapid accumulation of starch and were mainly distributed to the leaf-shaped stems and bulbs; Into the bulbs. In all organs, the distribution rate of dry matter in leafy stems was the highest.