More info on this topic. Cypress species pollination occurs in late fall and spring . Seeds mature 15 to 18 months after pollination. Ovulate cones remain closed until opened by heat or age [8,27].
Esser, Lora L. 1994. Cupressus goveniana. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/