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Plant Health Care and Lawn Fertilizer Services in Boise, ID

Lawn Co. is a yard mowing company that is focused on deeper grass care and maintenance service as well the aesthetic look of your yard. With over 25 years of experience in the Treasure Valley, we are able to provide the best lawn treatment service around and offer lawn aeration, lawn care spray, grass treatment, and fertilizer service.
Lawn fertilizer provides nourishment to help your lawn grow, be healthy and strong, and stay green and vibrant. It also helps to protect your lawn and plants from disease and pest infestations. To achieve these goals, we have developed a custom treatment and fertilization plan. We offer spring, summer, and fall lawn care plans to keep your grass healthy year-round. 

Our lawn specialist has created a seasonal schedule, and we apply the following fertilizers for optimal grass health and weed care: 

lawn insect prevention and treatment
early spring fertilizer & lawn care
late summer fertilizer & lawn care
fall lawn fertilizer & lawn care
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Fertilization is important for strengthening roots (which helps water retention – see our irrigation management page for more information about water management) and weed control. When your grass is healthy and thick, fertilizer helps prevent the growth of unwanted plants. The seeds aren’t likely to penetrate the soil but if they do, they don’t get the sunlight and water they need to flourish.
In addition to our lawn care plans, our certified arborist has created a plant health care program to help care for plants seasonally as well.


For more details, please download our pdf.

Plant Health Care Program for Trees & Shrubs

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Round 1 – Horticultural Oil (March-April)
  • A highly refined and ORGANIC horticultural oil listed on OMRI (Organic Materials Registry Institute)
  • Applied to control over-wintering foliar damaging pests
  • Typical pests targeted:Aphids, Scale, Spider Mites
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Round 2 - Early Summer Inspection/Treatment (May-June)
  • Insect and mite inspection and treatment focusing on plant damaging pests that are prevalent in the early summer months
  • Typical pests targeted:Aphids, Scale, Black Vine Weevil, Spider Mites
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Round 3 – Late Summer Inspection/Treatment (July-August)
  • Insect and mite inspection and treatment focusing on plant damaging peststhat are prevalent in the latesummer months
  • Typical pests targeted:Aphids, Scale, Black Vine Weevil, Spider Mites
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Round 4 – Fall Deep Root Feeding (October-November)
  • Balanced slow release fertilizer (NPK)
  • Micro nutrients: Sulfurand Chelate Iron
  • Applied to root areas of plants to provide proper nutrition and manage stress.
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OPTIONAL – Exterior Pest Control (Summer – Early Fall)
  • Exterior liquid spray around house foundation
  • Helps prevent insects and spiders from coming into your home
  • 3 application program for season-long control

Other Popular Services

  • Exterior Pest Spray
  • RoundUp Weed Treatment
  • Save a Tree Treatment
  • Systemic Treatment

Lawn Care Program

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Round 1 (March-April) – Liquid application:
  •  Balanced fertilizer (Nitrogen, Phosphorus, Potassium (Potash) or NPK)
  • Micro nutrients: Sulfur and Chelate iron
  • Pre-emergent crabgrass and broadleaf control ∙
  • Post-emergent broadleaf weed control– including Dandelions
  • Surfactants to enhance application results 
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Round 2 (May-June) – Granular application
  • Balanced slow release fertilizer (NPK) 
  • Micro nutrients: Sulfur 
  • Post-emergent broadleaf weed control –  including Clover
  • Inspect for lawn issues – sprinkler/mowing/pest
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Round 3 (May-June) – Granular application
  • Performed at the same time as round 2 application 
  • Systemic turf insect control for Billbugs
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Round 4 (July-August) – Granular application
  • Balanced slow release fertilizer (NPK) 
  • Micro nutrients: Sulfur 
  • Post-emergent broadleaf weed control – including Spurge
  • Inspect for lawn issues – sprinkler/mowing/pest
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Round 5 (October-November) – Granular application
  • Balanced slow release fertilizer (NPK) 
  • Micro nutrients: Sulfur 
  • Post-emergent broadleaf weed control 
  • Inspect for lawn issues – sprinkler/mowing/pest 
  • Grass will store nutrients over the winter for more vigorous growth in the Spring
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OPTIONAL – Exterior Pest Control (Summer – Early Fall)
  • Exterior liquid spray around house foundation
  • Helps prevent insects and spiders from coming into your home
  • 3 application program for season-long control

Other Popular Services

  • RoundUp Weed Treatment
  • Save a Tree Treatment
  • Systemic Treatment

From landscape design to weekly maintenance, we'll keep your grass greener, healthier and looking its best all season long.

For more information about lawn service pricing, current promotions or the average cost of professional lawn care service in the Meridian, Boise, and Treasure Valley, ID area, contact us at (208) 323-0234 or send us a message!
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