Take Tianjin City as a representative of cities in North China,an investigation is conducted on the wild flowers in urban areas from 2005 to 2010.The ecological habits,life forms and distribution of each species were carefully studied,and six different distribution patterns(single,linear,scattered,assembled,radial and climbing patterns) were detected.After the careful analysis on the characteristics of each distribution pattern,the possible use of these wild flowers in urban gardening was discussed,hopefully this can provide some guidance on wild flower use in urban gardening.