Abstract: Observations were carried out on flowering stage, flower morphology of 5 varieties of Gardenia jasminoidesat orchard in Jinxi of Jiangxi province and theirpollen viability wasdetermined during May toJune. The result demonstrated that flowering period of 5 varieties was from mid-May to mid-June, lasting 21-28 days. Mostly 6 petals,few 7 ones. The number of petal was consistent with the number of stamen, which was slightly longer than stigma, with very short filaments andlinear anther. Pollen viability of 5 varieties reached more than 50% on the day of flowering. There were significant differences in pollen viability among different varieties.