Tick & Mosquito

Your Seasonal Lawn Care Guide

Great lawns in New England aren’t made in one weekend — they’re built by doing the right things at the right time, season after season. Here’s what your lawn needs throughout the year, and why each step matters.

Spring (April – May): Wake-Up and Prevention

Spring is about recovery and getting ahead of problems before they start.

Clean up: Rake out leftover leaves, sticks, and matted areas. Matted debris smothers new growth and harbors snow mold.
First mow: Wait until the lawn is actively growing and dry. Sharpen your mower blade first — a dull blade shreds grass tips and invites disease.
Pre-emergent crabgrass control: This is the single most time-sensitive application of the year. Crabgrass germinates when soil temperatures hit about 55 degrees. The barrier has to be down before that happens — typically by mid-May on the Seacoast.
First fertilization: A balanced feeding to fuel spring growth.
Tick awareness begins: Ticks become active any time temperatures rise above 40 degrees — often earlier than people expect. If your family or pets use the yard, early-season tick control matters.

Early Summer (June): Momentum

Broadleaf weed control: Dandelions, clover, and other broadleaf weeds are actively growing and most vulnerable now.
Raise your mowing height: Set the mower to 3–3.5 inches. Taller grass shades the soil, holds moisture, and blocks weed seeds from germinating. Scalping the lawn short is one of the most damaging habits in home lawn care.
Grub prevention: June is the window for preventative grub control, which stops beetle larvae before they hatch and start feeding on roots in late summer.
Mosquito season ramps up: Standing water is mosquito breeding habitat — dump birdbaths, clogged gutters, and plant saucers weekly.

Mid-to-Late Summer (July – August): Protect, Don’t Push

Summer is about defense. The lawn is under heat stress, so the goal is maintaining health, not forcing growth.

Water deeply and infrequently — about an inch per week, early morning.
Keep mowing high and never remove more than a third of the blade at once.
Stay off a stressed lawn during peak heat when possible.
Watch for grub damage: Brown patches that lift like loose carpet, or animals digging at night, mean grubs are feeding below.
Watch for disease: Humid nights bring fungal issues. If patches appear and spread, get them identified before treating.

Early Fall (September – October): The Most Important Season

If you only invest in your lawn during one season, make it fall. Warm soil, cool air, and fewer weeds make this the best growing window of the year.

Aeration: Core aeration pulls plugs of soil from the lawn, relieving compaction and letting air, water, and nutrients reach the roots. New England’s clay-heavy and high-traffic soils compact badly — nearly every lawn benefits.
Overseeding: Immediately after aeration is the perfect time to overseed. Seed falls into the open holes, gets great soil contact, and thickens the lawn before winter. A dense lawn is your best long-term weed control.
Fall fertilization: The most valuable feeding of the year, fueling root growth and recovery.
Keep mowing until growth stops, gradually lowering the height for the final cuts.

Late Fall (November): Tuck It In

Final cleanup: Don’t let leaves sit — a wet leaf mat over winter breeds snow mold and suffocates turf.
Winterizer fertilization: Nutrients stored now power spring green-up.
Last mow short-ish: A slightly shorter final cut (around 2.5 inches) helps prevent matting and mold under snow.

Winter (December – March): Rest and Plan

Avoid heavy foot traffic on frozen turf.
Use calcium-based ice melt near the lawn — rock salt damages turf edges.
Winter is also the best time to plan next year’s program, before the spring rush.

The Takeaway

Every season sets up the next. Spring prevention reduces summer weeds. Summer protection preserves what spring built. Fall recovery determines how strong the lawn comes back. Skip a season and the whole cycle weakens — which is exactly why a structured annual program consistently outperforms a reactive, when-I-get-to-it approach.

Want the full year handled for you? Ask us about our annual lawn care programs.