I harvest all the mustard seeds once there are flowers. When the seeds dry, do I need to put them in the refrigerator or in a brown paper bag to use next year? Also, what is the best apple tree to plant in my zone?
Regarding mustard seeds, this article has good information: https://urbanext.illinois.edu/hortihints/0008c.html
Regarding apple trees for your area, this article should help you out: https://aggie-horticulture.tamu.edu/archives/parsons/publications/fruitlist.html