Cherry blossoms are beautiful with their white and pink petals that bring color and life to spring. You may have wondered, why do cherry blossoms bloom in the spring?
- Longer Days, More Light: Cherry trees respond to changes in day length. This is a process called photoperiodism. The increasing daylight hours helps the trees to align their blooming with the most favorable conditions for pollination.
- Temperature: Temperature plays a big part in the role of timing for cherry blossoms. When the temperature starts to get warmer, it lets the cherry blossoms know it’s time to bloom.
- Tree Physiology: Inside the cherry trees, plant hormones play a big role. One hormone called gibberellin stimulates cell growth and signals the buds to open.