Abstract: The researchers sought to determine the effect of mine tailings on the growth ornamental plants. The study aimed to evaluate the effects of mine tailings o n the numbers of seed germinated, number of leaves, length of seedlings and length of primary roots; assess the effects of the various percentages of mine tailings; determine the interaction effect of the various percentages of mine tailings with fertile soil and organic fertilizers; and establish the best kind of percentages of mine tailings on the germination of seeds and growth of seedlings. Experiments were performed to determine the germination and growth of petunia seeds. Selections of plant candidate from varieties of seeds were considered. The ideal candidate is petunia seeds since it can sprout at a minimum period of seven days. Generally, there is significant effect of mine tailing concentration in primary root growth . Findings show that primary roots in 25%, 50% and 75% mine tailings media are significantly shorter than the pure soil media. The data revealed that addition of fertilizer to the media increased plant growth in the three ( 3) media. There is significant increased in root lengths when fertilizer is added. It is also noted that there is significant decrease in root length as the amount of mine tailing is increased. The findings proved that the further development of plant organs are affected or are influenced by soil mineral concentrations. In this case , the mine tailings at any rate affect the leaves formation.