Core 24-6-12 Professional-Grade All-Purpose Lawn Fertilizer - 18 lbs

In this review of the Core 24-6-12 Professional-Grade All-Purpose Lawn Fertilizer, the bottom line is clear: this 18 lb bag is aimed at homeowners and small-property managers who want reliable, visible greening and steady growth without complicated feeding schedules. The reviewer found it notable for combining immediate and extended nitrogen release, which delivers quick color improvement plus up to six weeks of follow-up nutrition, making it a practical option for regular seasonal maintenance rather than one-off treatments.

Key Features

• Balanced 4:1:2 ratio: The 24-6-12 formulation provides a measured mix of nitrogen, phosphorus and potassium that supports leafy growth while supplying necessary root and stress support.
• Controlled-release nitrogen: The blend of quick and slow release nitrogen gives an initial boost for faster greening and sustained feeding for up to six weeks.
• Micronutrients and iron included: Built-in micronutrients and iron help correct subtle deficiencies and promote an extra-deep green without separate additives.
• Super-fine particles: Very small granules improve coverage and give even distribution with more particles per square foot, which reduces missed spots.
• Multi-season use: Formulated for spring, summer and fall application, it supports repeated feeding every 4-6 weeks during active growth.
• Made in the USA: Manufactured domestically for customers who prefer products produced locally.

Who It's For

This fertilizer is best for homeowners with lawns up to several thousand square feet who want a convenient, all-purpose product that covers up to about 6,200 sq. ft. per bag and reduces the need for multiple specialty products. It suits typical cool and warm season turf types and those who plan to follow a regular 4-6 week maintenance schedule.

It is less appropriate for someone seeking an ultra-high nitrogen quick-green only product, or for those requiring a custom blend for specific soil test results; professional turf managers with precise nutrient prescriptions may prefer customized formulations based on lab analysis.

Pros & Cons

Pros

• Consistent feeding thanks to the mix of quick and slow release nitrogen for immediate and sustained results.
• Added micronutrients and iron support deeper greening without separate supplements.
• Super-fine particle size improves uniform coverage and reduces skip patterns.
• Versatile seasonal use for spring through fall maintenance on many turf types.

Cons

• Customers report mixed results for grass growth speed, so individual lawn response can vary.
• Not tailored to lawns that need specific macronutrient ratios determined by a soil test.

Specifications

Product name	Core 24-6-12 Professional-Grade All-Purpose Lawn Fertilizer - 18 lbs
NPK ratio	24-6-12 (4:1:2)
Bag weight	18 lbs
Coverage	Up to 6,200 sq. ft.
Release type	Quick and slow release nitrogen (up to 6 weeks)
Additional nutrients	Micronutrients and iron included
Country of origin	Made in the USA

Our Verdict

The Core 24-6-12 18 lb bag is a practical, all-purpose lawn fertilizer that delivers reliable color improvement and steady growth when used on a regular 4-6 week schedule. It represents good value for homeowners who want a single product that covers a large area and includes micronutrients and iron, but those needing a highly customized program should pair it with soil testing or choose a specialty formulation.

Frequently Asked Questions

How often should I apply this fertilizer?
Reapply every 4-6 weeks during the growing season for best results.

What lawn types can use this product?
It is suitable for most turf types and can be used in spring, summer and fall as part of routine maintenance.

How much area does one bag cover?
One 18 lb bag covers up to approximately 6,200 sq. ft., depending on application rate and equipment.