California, United States

About 20 Tumbling Tom tomato plants were started at Thanksgiving time and kept in three different locations, greenhouse, indoors etc. and have had loads of yellow flowers which stayed on the plants for weeks without dropping and without setting fruit. The full size other 5 varieties of tomatoes planted at the same time have set much fruit. The flowers of all plants have been vibrated for pollination. Do you have any idea why the Tumbling Toms don't set fruit or drop flowers for weeks?
Thank you.

• 6 Mar, 2010