花卉罐头国际市场上有一种专供人们观赏的仙人掌罐头。这种罐头由起罐到开花，仅需两周左右。买回后只需将罐装仙人掌的罐面打开，浇上２００～４００毫升水，２０分钟后，仙人掌就长出罐面。半个月后，即可开出美丽的花朵。以后只需每星期放置室外进行日照两次，并经常浇... Canned flowers There is a cactus can on the international market exclusively for people to watch. This cans from the tank to flowering, only about two weeks. Just buy back the canned cactus jar opened, poured 200 ~ 400 ml of water, 20 minutes later, the cactus grow pot surface. Half a month later, you can open a beautiful flower. Just put the sun outdoor two times a week, and often poured ...