In a first aspect of the present invention, there is provided a method of treating ornamental plants comprising contacting said plants with a liquid composition comprising of one or more cyclopropene compound, wherein the concentration of the total of all of said one or more cyclopropene compound is 0.3 to 300 milligrams of cyclopropene compound per liter of said liquid composition.於本發明之第一態樣,提供一種處理觀賞植物之方法,該方法包括:使該植物與包含一種或多種環丙烯化合物之液體組成物接觸,其中,所有該一種或多種環丙烯化合物之總濃度為0.3至300毫克環丙烯化合物/每公升該液體組成物。
