Phenology

"Phenology is the study of the seasonal timing of life cycle events. You are studying phenology when you record the date a certain plant flowers, a tree's leaves emerge, an insect hatches, or a migratory bird appears on its nesting grounds. The dates on which these happen each year are affected by factors such as daylength, temperature, and rainfall." (www.learner.org)

A sign of the season in our home is the appearance of geranium cuttings on the dining room window sills, placed in glass jars containing several milliliters of water. This occurs during the month of October before the first frost.