Here in the northern hemisphere, spring has officially sprung! And so have my chamomile sprouts. Today, the Earth’s axis tilts neither toward nor away from the sun, resulting in equal parts day and night across the globe. In my biology class I’m learning about photoperiodism, the physiological response of an organism to changes in the photoperiod. The photoperiod is the relative length of day (light) and night (dark) periods in a 24-hour cycle. Flowering plants like chamomile use a photoreceptor protein to sense these changes and signal the buds to bloom. Some plants require longer night periods to bloom, while others require shorter night periods. My chamomile plants will open their potent flowers when the days are long and the nights are short. Well, first they have to survive the nursery period. Here’s hoping I can prove to be a proficient caregiver!