Frostkalendere

Frostkalendere, also known as frost calendars or frost dates, are tools used in gardening and agriculture to estimate the last and first expected frosts of the season. These dates are crucial for determining planting times, protecting sensitive crops from cold damage, and planning harvest schedules. Frost calendars are typically based on historical climate data for a specific geographic region.

The "last frost date" refers to the average date in spring after which the danger of frost is considered minimal for a particular area. Similarly, the "first frost date" indicates the average date in autumn when the first frost is expected. These dates are not absolute guarantees, as weather patterns can vary significantly from year to year.

Different regions have distinct frost calendars due to variations in climate, elevation, and proximity to large bodies of water. Gardening resources often provide local frost dates, and many online tools allow users to input their location to obtain customized estimates. Understanding and utilizing frost calendars helps gardeners minimize the risk of crop failure due to unexpected freezes and maximize their growing season.