Kore (Persephone/Brigid)
Ceres (Kar/Demeter)
Ops
Maia
Cybele
Faunus (Pan)
Fauna (Bona Dea)
Flora
Saturn
Gaea (Tellus/Terra)
Liber
Libera
Vertumnus
The above are all Spring and Summer Gods and Goddesses observed by the Greeks and Romans. Since the seasons had much to do with growing food, they were all very important and had nice festivals for each. Mother Goddesses also were Goddesses of the Spring and Summer so they are included here.