You’ll get a fast, measurable green-up with Simple Lawn Solutions High Nitrogen 28-0-0: it’s 28% N by weight, roughly 70% quick‑release (ammonium sulfate–like) and 30% slow‑release (urea‑formaldehyde‑like), delivered via a ready‑to‑use hose‑end sprayer that covers about 3,200 sq ft per bottle. Apply to moist but not saturated soil, rinse the sprayer after use, and expect visible color in 3–7 days and denser shoots in two weeks; more details follow.
Some Key Takeaways
- High Nitrogen 28-0-0 delivers 28% N with 70% quick-release and 30% slow-release for fast green-up and sustained feeding.
- Visible greening typically occurs within 3–7 days, with noticeable shoot density gains within two weeks.
- One ready-to-use bottle covers about 3,200 sq ft when applied evenly with the hose-end sprayer.
- Product favors biomass and rapid growth compared with Lawn Energizer, which supplies less N but adds iron for deeper color.
- Follow nozzle setup, test spray, apply on moist soil every 4–6 weeks during active growth, and rinse/store the sprayer to prevent clogging.
What High Nitrogen 28-0-0 Actually Contains and How It Works
High Nitrogen 28-0-0 contains a concentrated liquid fertilizer with a 28-0-0 N-P-K ratio, delivering 28% total nitrogen by weight — roughly 70% in quick-release form and 30% as slow-release — to provide an immediate nutrient surge followed by sustained nitrogen availability. You’ll find quick-acting nitrogen primarily as ammonium sulfate-like constituents for rapid uptake, while the slow fraction behaves similarly to urea formaldehyde polymers, releasing N over weeks. This dual-phase profile raises tissue N quickly and maintains availability, reducing leaching risk when used correctly. Data-driven formulation supports predictable greening across common turf species, fostering collective confidence. This product is designed for homeowners maintaining lawns and landscapes who prefer dependable, granular fertilizer lawn solutions for steady results.
How to Apply the Ready-to-Use Hose‑End Sprayer for Best Results
Before you attach the hose‑end sprayer, confirm the bottle is unopened and the nozzle is set to the manufacturer’s lawn setting; you’ll prevent misapplication and guarantee the intended dilution reaches the turf. Connect securely, test spray on pavement to verify flow rate, then apply uniformly across the lawn at walking speed to meet the stated coverage. Prioritize sprayer maintenance: rinse after each use and store upright to avoid clogging. Plan watering timing around dry periods—apply when soil is moist but not saturated and avoid immediate heavy irrigation. Record application dates to confirm proper reapplication intervals and consistent results. For large properties, consider using high-capacity sprayers to improve efficiency and reduce the number of refills.
Performance: Green-Up, Growth Rate, and Coverage Expectations
When you apply either liquid fertilizer as directed, expect a measurable green-up within 7–14 days for the Lawn Energizer (nitrogen plus iron) and a faster initial response—often 3–7 days—for the High Nitrogen 28-0-0 due to its 70% quick‑release nitrogen; both products provide continued feeding from their slow‑release fractions that helps sustain growth between applications. You’ll see rapid greening in treated zones and a quantifiable uptick in shoot density within two weeks. Coverage per bottle is 3,200 sq ft, so you can plan schedules; regular, measured applications also support balanced root development and predictable biomass accumulation. These spray fertilizer concentrates are designed specifically for homeowners maintaining their lawn and landscape, making them a convenient spray fertilizer option.
How This 28-0-0 Compares to the Lawn Energizer (Nitrogen + Iron)
Although both products deliver readily available nitrogen, the 28-0-0 formulation supplies a substantially higher total nitrogen dose with a 70% quick-release fraction for rapid growth response and a 30% slow-release fraction for sustained feeding, whereas the Lawn Energizer provides a lighter nitrogen load combined with iron specifically to deepen turf color. You’ll prefer 28-0-0 when maximizing biomass and extended nutrient longevity matters; its release profile supports fewer reapplications. The Lawn Energizer’s iron content enhances immediate color retention and complements modest nitrogen for visual improvement. Compare expected response, application timing, and your collective lawn goals before choosing. Our store offers a range of controlled-release fertilizer options for homeowners to match different lawn and landscape maintenance needs.
Who Should Buy It and Recommended Application Schedule
If your primary goal is rapid, measurable biomass increase and longer between-application intervals, choose the 28-0-0 product; its 70% quick-release / 30% slow-release split delivers a high instantaneous nitrogen flux plus sustained release that reduces reapplication frequency. You should buy it if you need fast greening and robust growth on established turf, especially in high-use yards. For beginner gardeners, follow manufacturer coverage (3,200 sq ft per bottle) and apply during active growth windows—spring green-up and early fall—observing seasonal timing. Apply every 4–6 weeks when grass is actively growing; reduce frequency outside growth periods. This product is ideal for homeowners focused on high-nitrogen granules to boost turf vigor with fewer applications.
Some Questions Answered
Is This Product Safe for Use on Newly Seeded Lawns?
Not immediately; you should wait until seedlings are established. Seedling sensitivity makes young grass vulnerable to high nitrogen and concentrated solutions, which can hinder germination timing and damage tender roots. Use a light formulation like the Lawn Energizer Booster or delay applying High Nitrogen 28-0-0 until after multiple true leaves appear and roots are more robust. Follow manufacturer timing and apply evenly with the hose-end sprayer to support healthy, inclusive lawn care.
Can I Mix It With Other Garden Fertilizers or Pesticides?
You shouldn’t mix it indiscriminately; check compatibility first. For Mixing compatibility, follow manufacturer guidance and label directions to avoid adverse Chemical interactions. Test a small jar mix before full-spray, avoid combining with strong acids, alkalis, or incompatible pesticides, and stagger applications when unsure. You’ll stay safer if you consult product SDS, contact Simple Lawn Solutions, and join peer groups to share verified mixing experiences and best practices.
Will the Hose‑End Sprayer Fit All Hose Types and Pressures?
Yes — the hose-end sprayer is designed for common household fittings and will fit standard garden hose threads, so you’re covered for hose compatibility. It tolerates typical residential water pressures (up to about 60 psi operationally) without leaking or failing; higher commercial pressures may exceed its pressure tolerance. You’ll want to inspect O-rings and test on a low-pressure setting first to guarantee a reliable, inclusive experience for your lawn care routine.
Is This Fertilizer Pet‑ and Child‑Safe After Application?
No — you shouldn’t assume it’s fully safe immediately; minimize pet exposure until treated areas dry. Label guidance varies, but liquid 28-0-0 leaves soluble nitrogen residues that can persist briefly on blade surfaces and in soil. Limit child access and keep pets off the lawn during application and until residue persistence (wetness) ends. Rinse paws if contact occurs, follow manufacturer safety instructions, and use the 30‑day return channel for concerns.
What Is the Shelf Life Once the Bottle Is Opened?
You can expect about 12–18 months of usable shelf life after opening if you store it properly. Keep the bottle sealed, upright, in a cool, dry place away from direct sunlight to maximize storage stability and minimize microbial degradation. You’ll want to use it within that window for predictable nitrogen release and performance; if you notice odor, cloudiness, or separation, discard it. Follow manufacturer guidance for best results.



