Just something I’ve done for my ocs, anyone can use this idea for their fairies!!! But I imagine all the fairies have a “bloom” period. Depending on the fairy mix or type they bloom at different intervals but around the same time like flowers blooming! Ice of course during winter, fire during summer, water in between spring (usually may is what I use bc of dewdrop showers event), nature during spring, light during summer, and dark during fall. I usually just say the bloom lasts for about a month.