Treatment Programs

Early Spring Green-Up: What to Do (and Not Do) Right Away

The common early-spring mistakes that do more harm than good, and what's genuinely worth doing right away.

Treatment Programs · 3 min read · Published July 15, 2026 · Updated October 31, 2026

The first warm days of spring create a strong urge to jump into a full round of lawn care immediately, but a few common early moves actually do more harm than good if the timing isn't right.

The biggest mistake I see is fertilizing too early, before the grass has genuinely broken dormancy and begun active growth. Fertilizer applied to grass that isn't yet actively growing doesn't get used efficiently by the plant and can encourage premature top growth before the root system has caught up, leaving the lawn more vulnerable if a late cold snap hits.

Mowing too short too early is a similar mistake. Scalping the lawn in the first cut of the season removes leaf tissue the plant needs for early photosynthesis and can shock grass that's still adjusting out of dormancy, so I recommend a normal or slightly higher mowing height for the first several cuts of spring.

What is genuinely worth doing early is a visual inspection of the lawn for winter damage, compaction, or thin areas that will inform the rest of the season's plan, along with a soil test if it's been more than a couple of years since the last one.

Pre-emergent timing is the one task that genuinely can't wait for a comfortable, unhurried pace, since it needs to go down before soil temperatures cross the threshold that triggers weed germination, which is exactly why soil temperature tracking matters more than a general sense that spring has arrived. References: Purdue Turfgrass Science — Spring Lawn Care Timing: https://turf.purdue.edu/ Penn State Extension — Early Spring Turfgrass Management: https://extension.psu.edu/