When do summer annuals typically sprout?

Summer annuals are plants that complete their life cycle in one growing season, typically germinating, growing, flowering, and producing seeds within that timeframe. They usually sprout in the spring or summer when temperatures are warmer, and conditions are optimal for growth. This is when they establish themselves and thrive before flowering and going to seed as summer progresses. By sprouting in the spring or early summer, summer annuals maximize their growth and reproduction potential during the warmer months.

The other times of the year, such as fall and winter, are not conducive to their growth cycle, as cooler temperatures limit germination and growth for these types of plants. Sprouting throughout the year would not align with the specific lifecycle of summer annuals, which is distinctly tied to the warm, growing months.