I have 10 year old Quince, sold as Champion (self fertile). It arrived at 3 years old as a bare root plant. In year 5 it produced 2 lovely fruits. But since then it flowers like mad but never sets fruit. I have tried moving pollen around the flowers with a soft brush, and also vibrating them with an electric toothbrush. I give it a seaweed and calcium feed each Spring. All to no avail. This year I left it to its own devices and after the flower petals dropped, the tree was covered in quarter-inch swelling fruits. Then they all fell off. Help!
The only true Scotch Bonnet is the Jamaican Ministry Of Agriculture Scotch Bonnet