- Comstock is a Spanish heirloom tobacco thought to have been one of the main filler and binder varieties grown in Wisconsin and Minnesota.
Comstock Spanish Tobacco Seeds. 50-60 days. Comstock is a Spanish heirloom tobacco thought to have been one of the main filler and binder varieties grown in Wisconsin and Minnesota. Developed in the late 1800s, by a pioneer grower for whom it was named. Ready to harvest in about 50 days.