Which of the following is a listed timing for two fertilizer applications annually?

• A. Mid to late spring
• B. Early winter
• C. First frost
• D. Winter solstice

Answer: (A)

Timing fertilizer to match when the turf can actually use the nutrients is the key idea. Mid to late spring is ideal because cool-season grasses are exiting dormancy and beginning active growth, so nutrients are readily taken up to support a strong green-up, tiller formation, and overall vigor as soil temperatures rise. This window helps avoid wasted fertilizer on plants that aren’t growing yet and reduces the risk of nutrient loss later in the season.

The other options fall outside when the grass is actively using nutrients: applying in early winter or during or after the first frost means the turf is largely dormant and can’t efficiently take up or utilize the fertilizer, increasing the chance of waste or leaching. The winter solstice sits in the coldest part of the year, which is also not a practical time for nutrient uptake. So mid to late spring stands out as a listed timing for one of the two annual applications.