Resources

Phosphorus-free fertilizer:

Ask your local store to carry P-free products or look up retailers.

Soil testing:

Cornell Nutrient Analysis Labs
(607) 255-4540

University of Vermont Extension
(802) 656-3030

Lawn care tips, organics and pest management:

Cornell Cooperative Ext. Growline
Plattsburgh: (518) 561-7450 Westport: (518) 962-4810 or askMG@cornell.edu

Vermont Master Gardener Helpline
(800) 639-2230

Cornell Home Gardening Website

Lake Friendly Gardening Fact Sheets Online

Safe Lawns Website

girl running across lawn












HEALTHY LAWN TIPS

Don't P!Follow these easy tips for a beautiful green lawn, not a green lake! In you want to learn even more about creating healthier, lake-friendly lawns, check out the resources on the left.

FERTILIZE...

  • Only with phosphorus-free fertilizers. Most northeastern lawns and 75% of Chittenden County VT lawns tested by the University had enough phosphorus (P) and only need nitrogen (N)! A soil survey of St. Albans, VT also showed excessive levels of phosphorus there. Similar results have been found for upstate NY.
  • Apply fertilizer once/year—the best time for this region is early fall.
  • Sweep up fertilizer from sidewalks and driveways. Don’t fertilize before heavy rain.

bag of fertilizerLOOK FOR THE MIDDLE NUMBER...

  • On fertilizer bags to see the N-P-K nutrient analysis. The middle number is the phosphate (phosphorus) content. A “zero” in the middle means it is phosphorus-free. Lawns rarely need extra potassium (K), but adding some does not affect water quality.

TAKE A SOIL TEST...

  • If you are seeding a new lawn, or want to learn more about your lawn’s nutrient content, pH level and organic content.

WATER...

  • If desired, in early morning, when there is less than 1 inch/week of rain. Grass will survive droughts without watering by going dormant.

PLANT GRASS SEED...

  • On existing lawns in the fall and spring to out compete weeds.
  • Use a grass mixture that does well in the setting (soil, light, activity).
  • Leave legumes, such as common white clover, among the grass to add nitrogen, which will naturally fertilize your lawn.

MOW...

  • To maintain a height of 3 to 4 inches and cut off no more than 1/3 of grass blade. Leave clippings on lawn to add nutrients and organic matter, but be sure to sweep the clippings off pavement.

WEEDS...

  • Will be discouraged by following these healthy lawn tips! Just pull any that are left by hand.
grass with dew
website by Lake Champlain Basin Program