7 min readUpdated March 2026
Spring Lawn Care in Southern NH & Eastern MA
In our zone (roughly USDA 5b/6a from Salem NH down through the North Shore), spring lawn care runs on soil temperature — not the calendar. Move too early and you waste product. Move too late and crabgrass wins for the year. Here's the order of operations that actually works up here.
What's inside
- The soil-temperature cue that triggers pre-emergent (not the date)
- Dethatch vs. power-rake vs. aerate — which one your lawn actually needs
- Overseeding: why fall is better, and when spring seed still makes sense
- First mow height and timing for cool-season grasses (fescue / rye / bluegrass)
- Realistic 2026 pricing for cleanup, aeration, seeding, and a 5-step program
- The three most common mistakes homeowners make in April
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