For three years I have been trying to self-pollinate my Joe Rock Tree Paeony. I have not been successful. I did get one seed the first year either by pure luck or more likely it was with the help from an insect. This year I took pollen and with a toothpick opened the tips of the carpels when they began expelling their sticky substance and forced pollen into the carpels and then made sure they were closed. Has anyone done this? In the past I have always used a small brush or my finger and applied pollen to the tips of the carpels when they began exuding their sticky substance. What am I doing wrong or right? Thank you.