At what temperature does crabgrass typically germinate?

• A. ≈45°F
• B. ≈50°F
• C. ≈55°F
• D. ≈60°F

Answer: (C)

Crabgrass typically germinates at around 55°F. This temperature range is crucial for the seed's biological processes, which include the activation of enzymes necessary for growth. At this temperature, the conditions in the soil are generally warm enough to stimulate seed swelling and beginning the germination process. Knowing that crabgrass is a common warmer-season grass, it emphasizes the importance of the right environmental conditions for successful germination. Students preparing for the Connecticut 3A Supervisor License should remember that understanding temperature thresholds is vital for effective lawn care and weed management strategies.