As winter fades and the first signs of spring emerge, many homeowners start itching to clean up their lawns and kick off the growing season. But when it comes to lawn care, timing is everything — and jumping in too early can do more harm than good.

🧊 Wait Until the Ground Warms Up One of the most common mistakes in early spring lawn care is starting cleanup before the soil is ready. If the ground is still frozen or hovering below 40°F, raking, fertilizing, or even walking on the lawn can damage tender grass crowns and compact the soil. Instead of guessing, use the SDSTATE Mesonet — a free online tool from South Dakota State University that tracks real-time soil temperatures across the state. Look for the 4-inch soil temperature map, which updates every 15 minutes and gives you a reliable snapshot of whether your lawn is ready for action.

🧼 What Spring Cleanup Includes — Once It’s Time Once the soil consistently warms above 40°F, you can begin your spring cleanup. This typically includes: – Power raking to remove dead grass and thatch buildup – Aeration to relieve soil compaction and improve root growth – Fertilization to feed your lawn — but only when temperatures are steady, and grass is actively growing Applying fertilizer and crabgrass control too early, when the grass is still dormant, can lead to runoff, evaporation, and wasted nutrients. Wait until your lawn shows signs of waking up: a slight green-up, active growth, and warmer overnight temps.

🧭 Use Mesonet to Guide Your Lawn Strategy The Mesonet system is especially helpful in South Dakota, where spring weather can swing wildly. By checking soil temps before you act, you’ll avoid premature damage and give your lawn the best chance to thrive.