Flowers bloom in different seasons due to a combination of environmental triggers and genetic programming. Plants monitor several key factors to determine when to flower:
- Photoperiod (day length)
- Temperature patterns
- Moisture availability
- Soil conditions
Some plants, called short-day plants, flower when nights become longer (like chrysanthemums in fall). Others, known as long-day plants, bloom when days lengthen (like black-eyed susans in summer). Some plants are day-neutral and rely more on temperature or age to trigger blooming.