I usuallly wait until after the flowers have gone and the stalk **starts**to turn brown. Then I collect all of the stalks in a brown paper bag to finish drying. Afterwards I shake and the seeds fall to the bottom and can be seperated from the chaff. This seems to work ok for me.

What about that strain of coleus marketed as the p**S_Off plant (supposed to repel cats and dogs). is it a hybrid? If I save seeds will they be true? The plants are rather dear to buy.