Annual Lawn Care Calendar for Idaho Homeowners
Keeping your lawn healthy in the Treasure Valley requires knowing what to do and when to do it. Idaho’s distinct seasons—from hot, dry summers to cold winters—mean your lawn needs different care throughout the year.
Here’s your complete month-by-month guide to lawn care in the Boise, Meridian, Nampa, and Eagle areas.
Spring (March - May)
March: Wake-Up Time
- Clean up debris from winter—leaves, twigs, and anything that accumulated
- Rake lightly to remove dead grass and help new growth
- Check irrigation for winter damage before turning on
- Apply pre-emergent for crabgrass prevention (timing is critical!)
April: Growing Season Begins
- Start mowing when grass reaches 3-4 inches
- First fertilization of the year
- Sprinkler startup and system check
- Aerate if your lawn is compacted
May: Full Speed
- Weekly mowing begins in earnest
- Second fertilization application
- Watch for weeds and treat as needed
- Adjust watering as temperatures rise
Summer (June - August)
June: Heat Management
- Mow at 3-3.5 inches to protect roots from heat
- Water deeply but infrequently (1-1.5 inches per week)
- Third fertilization with slow-release formula
- Watch for billbugs and other pests
July: Peak Summer
- Early morning watering to reduce evaporation
- Avoid mowing during heat of the day
- Keep blades sharp for clean cuts
- Consider spider barrier treatment
August: Preparing for Fall
- Continue regular mowing and watering
- Fourth fertilization application
- Overseed thin areas late in the month
- Watch for disease in stressed lawns
Fall (September - November)
September: Recovery Time
- Fifth fertilization as temperatures cool
- Aerate and overseed for best results
- Lower mower height gradually
- Continue watering until frost
October: Winterization Prep
- Sixth fertilization (winterizer formula)
- Final mowing before dormancy
- Sprinkler blowout before freezing temperatures
- Fall cleanup of leaves and debris
November: Wrapping Up
- Last chance leaf cleanup
- Final irrigation check
- Store lawn equipment properly
- Plan for next season
Winter (December - February)
December - February: Dormancy
- Avoid walking on frozen grass
- Snow removal without damaging turf
- Plan spring projects
- Seventh fertilization in late February if weather permits
The Easy Way: Our All-Inclusive Subscription
Managing all these tasks can be overwhelming. That’s why our $199/month subscription handles the essentials for you:
- Weekly mowing during growing season
- 7 fertilization treatments professionally timed
- Sprinkler blowout and startup included
Subscribe Now and let us handle the calendar for you.
Have questions about lawn care in your specific area? Contact us or call (208) 504-0843.