In this study it was determined that fresh weight changes, peroxidase activity, soluble protein and anthocyanin content and the changes in the membrane permeability in four different stages of flowering (developing flower buds, anthesis, mature flowers, senescing flowers) of  Agapanthus africanus. It was seen that fresh weight amount in mature flowers stage is the highest when it was compared with senescing flowers. It was found a negative correlation between decrease of anthocyanin content and increase of  membrane permeability in senescing flower stage because of losing of semi-permeability in membranes during senescence.