Fertilome Winterizer 25-0-6 40 lb.
Best seasonal treatment for homeowners preparing lawns for winter survival.
Prepare your lawn, trees, and shrubs for winter with Fertilome Winterizer 25-0-6. This granular fertilizer is ideal for fall application, enhancing plant hardiness and promoting resilience against cold weather. Its formulation, rich in potash, supports healthy warm-season grasses and builds stem strength for improved disease resistance. Ensure your plants remain stable and emerge healthy in the spring with this essential winterizing treatment. It's like giving your plants a protective overcoat for the cold season.
$26.83
Owner Satisfaction
4.6
/ 5
Category Rank
1928
/ 4348
#1928 in Fertilizers
Price vs Category Average
-57%
Below average
NPK Ratio
2506
/ --
Who it's for
- Homeowners in regions with harsh, freezing winter climates
- Gardeners wanting a lush, vibrant lawn early in spring
- Owners of large residential lawns seeking cost-effective coverage
Who should skip it
- People establishing new grass seed or needing root development
- Beginners uncomfortable with precise spreader calibration and application
- Gardeners expecting immediate visual results from their lawn care
Performance breakdown
Winter Hardiness Support
High potash content effectively fortifies plant cell walls against freezing temperatures.
Application Ease
Granular consistency ensures smooth, even distribution across standard lawn spreaders.
Spring Recovery Potential
Strategic nutrient loading promotes vigorous, early green-up once winter ends.
Coverage Efficiency
Five thousand square feet of coverage suits most suburban residential lawns.
Disease Resistance
Strengthened stems provide a robust defense against common cold-weather fungal issues.
Nutrient Balance
The 25-0-6 ratio prioritizes root development over excessive top-growth stimulation.
Key Specs
NPK Ratio
25-0-6
Package Weight
20 lb.
Coverage Area
5,000 sq ft
Application Timing
Fall
Fertilizer Source
Synthetic
Target Plant Type
Lawn, Trees and Shrubs
Fertilizer Form
Granular
Nitrogen Percentage
25%
Features
- Boosts winter hardiness for lawns and plants
- Promotes healthier spring growth for grasses
- Builds stem strength and disease resistance
- Ideal for fall application
- Prepares plants for winter survival
- Enhances plant stability in cold
- Granular formula for easy application
What customers say
Customers consistently find the Fertilome Winterizer highly reliable, noting its effectiveness in promoting deep root growth and ensuring a quick green up the following spring. Reviewers frequently highlight the excellent value for money, appreciating that this specific formulation delivers professional grade results without the premium price tag. The product’s ease of application is also a recurring positive point, making winter lawn preparation straightforward for homeowners.
Know before you buy
This formula is specifically designed for fall application to help plants transition into dormancy. By focusing on potassium rather than phosphorus, it strengthens cell walls and improves root health, which helps your lawn and plants survive freezing temperatures and emerge stronger in the spring.
This product is versatile and safe for use on lawns, trees, and shrubs. Its nutrient profile is formulated to support the overall hardiness of various landscape plants as they prepare for the winter season.
The 25-0-6 ratio indicates the fertilizer contains 25% nitrogen for late-season greening and 6% potassium for stress tolerance. It contains 0% phosphorus, making it a suitable choice for soils that already have sufficient phosphorus levels or in areas where phosphorus runoff is a concern.
A single 20-pound bag of Fertilome Winterizer is designed to cover 5,000 square feet. Be sure to measure your lawn area accurately before application to ensure you apply the product at the recommended rate.
No, this is a synthetic, granular fertilizer. It is engineered for precise nutrient delivery to help plants build resilience against cold weather.
Because this is a granular, non-water-soluble formula, it is generally recommended to lightly water the area after application. This helps the granules settle into the soil and begin the process of nutrient absorption.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$27