Lawn Care Calendars by Soil Temperature (°F and °C)

Monthly lawn maintenance calendars for pre-emergent, fertilizer, aeration, overseeding, and moss control timing based on soil temperature in the USA, Canada, and the UK.

Air temperature on a phone forecast is a poor trigger for lawn work. Crabgrass pre-emergent belongs on a 2-inch soil temperature near 50–55°F (10–13°C), not a calendar date. Seed germination, fertilizer uptake, and many diseases follow soil heat, not the month name.

Use the Lawncare Workshop calendars for pre-emergent, fertilizer, aeration, overseeding, and moss control windows used in the USA, Canada, and the UK.