Lawn Care Calendar & Schedule – Month-by-Month

Looking for an easy-to-follow, month-to-month lawn care guide? Lawn Phix created this specialized lawn care calendar and schedule for cool season grasses – particularly within the Zone 6 area. Quickly check your lawn care tasks for each month of the season in this monthly guide to a healthy, thick green turf. 


  • Cleaning up is the main goal this month. Remove all branches, sticks, twigs, acorns and/or pine cones from the grass
  • Pick up all other debris such as leaves that may have stuck remained over winter. A leaf blower is a good idea
  • Get your mower ready. Sharpen your blades. I love the Gator G3 mulching blade by Oregon
  • Get a soil test done so you know what your dirt needs heading into the season

Save 10 on Pre Emergents


  • Lightly rake the grass. This is going to help with airflow and circulation, and allow the blades of grass to stand up, exposing more blade surface to the sunlight
  • Use a pre-emergent before soil temps hit 55 degrees. When forsythia start blooming, the crabgrass seeds are germinating. Stay ahead here
  • If you didn’t winterize your lawn from the previous fall/winter, and didn’t add a late season fertilizer, use an organic here like Milorganite or Bay State
  • Consider adding humic acids and L-amino acids through the form of Essentials 1-0-1 or Kelp4Less ExtremeBlend
  • Lime here if needed (see: soil test)
  • 4 Step Plan users: Your Step 1 begins now
  • Detailed Spring Lawn Care Tips
  • Products:


  • Mow tall and frequently. Recycle, or mulch your clippings back into the grass. Don’t bag unless the clippings are too long – in which case you need to mow taller and/or more frequently. Looking for 3″  blades
  • Continue to address soil test. Add a starter fertilizer now as soil temps hit 60 degrees and the turf really begins to grow
  • Apply a second application of pre-emergent, this time using Dithiopyr. It also has post emergent qualities that will help kill crabgrass and dandelions 
  • Begin to spot spray weeds. For a detailed post about weed control, read How To Get Rid of and Control Weeds in Your Lawn
  • Understand N counts by using our Nitrogen Calculator 
  • Begin your fungicide preventative treatments now with azoxystrobin and propiconazole
  • Products:


  • The first day of summer is June 21, 2019
  • Begin your irrigation. Aim for 1″-1.5″ of water per week – including natural rain water. Water deeply but infrequently: 2-3 times per week at the most, preferably between 4-9 a.m. 
  • If there’s a history of grubs or sod webworms, use an insecticide containing Dylox
  • Fungus can also start now. Ideal climates are hot and humid. 2018 had lots of rain and hot humid overnight temps which was ideal for brown spot etc. An application of Heritage G can preventative and control turfgrass diseases for up to 28 days (also see products from May above)
  • Raise mower height to ~3.5″ (depending on grass type)
  • Spot-spray broadleaf weeds in earlier mornings or later evenings when air temperatures are under 85 degrees
  • Fertilize with low-nitrogen organics
  • Products:


  • High heat and low rainfalls may lead to dormant grasses
  • Irrigate as long as your town allows. Aiming for 1.5″ of weekly watering
  • Keep an eye out for lawn diseases and fungus – especially as humidity rises
  • Watch for grubs and other lawn insects
  • Fertilize with low-nitrogen organics or skip all together
    • Never fertilize dormant turf
  • Products:


  • Same as July…
  • Keep an eye out for lawn diseases and fungus – especially as humidity rises. Treat with a Heritage G type product
  • Watch for grubs and other lawn insects
    • Use a product containing Dylox to control grubs and sod webworms
  • Fertilize with low-nitrogen organics or skip all together
    • Never fertilize dormant turf


  • Best time of year to start a new lawn and/or overseed you lawn
  • Dethatch using a power rake, tow-behind dethatcher, or dethatching rake
  • Core aerate doing a double-pass – up/down then left/right (north/south and east/west)
  • Mow low around 2.5″
  • Overseed or slice seed. Depending on how thin or think your turn is, aiming for 3- lbs. per 1,000
  • Fertilize with an organic and starter fertilizer. Think Milorganite or Bay State and Lesco or Jonathan Green starter fertilizers
  • Lime – depending on soil needs, a calcitic lime like Jonathan Green Magical 
  • When seeding, you can also use Tenacity


  • Mow low again, aiming for ~2.5 – 3.0″ grass height. Final cut of the season should be 2″
  • If you skipped September tasks, do it early as nighttime temps will drop to unfavorable temperatures for new seedlings trying to germinate
  • Begin winterizer fertilizer like Jonathan Green Winter Survival
  • Continue spot-spraying weeds once you’ve mowed your new grass at least twice


  • Lime with pelletized lime to over-winter
  • Final application of winterizer fertilizer
  • Scalp the lawn to 2″ 

So, there you have it. I hope this calendar helps you with your annual lawn care maintenance. It’s worked for me – check out my front yard renovations.

Please let me know what you think by leaving a comment below!


My new Cool Season Lawn Care Guide now available for download! Click the image below to get yours today!










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