LESCO 5-0-20 Spar-TECH MOP BIO Fertilizer

LESCO 5-0-20 Spar-TECH MOP BIO FertilizerStrengthen your turf with LESCO 5 0 20 Spar TECH MOP BIO Fertilizer, a premium granular blend designed to improve lawn health, stress tolerance, and color. With a low nitrogen, high potassium formula plus iron and biosolids, this is the perfect fertilizer for tough growing conditions, late season feeding, or periods of heat and drought. This is an ideal stress blend for cool season lawns like tall fescue, Kentucky bluegrass, or ryegrass during the hot

Strengthen your turf with LESCO 5-0-20 Spar-TECH MOP BIO Fertilizer, a premium granular blend designed to improve lawn health, stress tolerance, and color. With a low-nitrogen, high-potassium formula plus iron and biosolids, this is the perfect fertilizer for tough growing conditions, late-season feeding, or periods of heat and drought.

This is an ideal stress blend for cool-season lawns like tall fescue, Kentucky bluegrass, or ryegrass during the hot summer months. It helps maintain strength and color without pushing excess growth. For warm-season lawns like Bermuda or St. Augustine, it’s perfect in late summer and fall when nitrogen demand drops but potassium becomes essential for root development and winter preparation.

Key Features

• 5-0-20 analysis builds strong turf without excessive growth
• Spar-TECH™ micronutrient technology improves nutrient uptake
• 0.15% iron enhances color without surge growth
• Muriate of potash (MOP) delivers effective potassium for stress protection
• Biosolids add organic matter and slow-release nitrogen
• Covers up to 10,000 sq ft per 50 lb bag

Best Time to Apply by Lawn Type

Cool-Season Lawns (Tall Fescue, Bluegrass, Ryegrass)

• June, July, and August – Use as a stress blend during heat to maintain turf strength and color without pushing top growth
• October and November – Helps prepare the lawn for winter dormancy and improves disease resistance

Warm-Season Lawns (Bermuda, Zoysia, St. Augustine)

• August through October – Strengthens turf and roots in late summer and fall as nitrogen demand declines
• Early Spring (March in southern zones) – Supports early recovery before nitrogen-heavy feeding begins

Guaranteed Analysis

• Total Nitrogen (N): 5.00%
  • 4.61% Urea Nitrogen
  • 0.12% Other Water Soluble Organic Nitrogen
  • 0.27% Water Insoluble Nitrogen
• Soluble Potash (K₂O): 20.00%
• Iron (Fe): 0.15%
• Derived from: Urea, Muriate of Potash, Iron Amino Acid Complex, Biosolids

Application Guidelines

• Use rotary spreaders only
• Apply 5.0 lbs per 1,000 sq ft
• Water in after application
• Avoid mowing immediately after application
• Sweep off sidewalks and hard surfaces to avoid staining

Product Details

• Net Weight: 50 lb (22.7 kg)
• Coverage: 10,000 sq ft
• Granule Size (SGN): 230

Pro Tip

This blend is a go-to for managing heat stress on cool-season lawns during summer and for prepping all lawns in late summer and fall. Pair it with a nitrogen-rich fertilizer earlier in the season, then switch to 5-0-20 to toughen up your turf when it matters most.