Zoysia grass is known for its lush, dense, and carpet-like texture, making it a favorite among homeowners who want an attractive lawn that thrives in both sun and shade. However, to keep your Zoysia grass healthy and vibrant, fall fertilization is crucial.
Applying the right fertilizer in autumn helps the grass recover from summer stress, strengthen roots, and prepare for winter dormancy.According to lawn care studies by the University of Georgia, Zoysia lawns perform 45% better in spring green-up when properly fertilized during fall.
The key is choosing a fertilizer with the right balance of nitrogen, phosphorus, and potassium (N-P-K) to promote root growth without encouraging excessive top growth. Below are the 10 best fertilizers for Zoysia grass in fall, each carefully reviewed for effectiveness, affordability, and long-term results.
10 Best Fertilizers For Zoysia Grass In Fall
1. Scotts Turf Builder WinterGuard Fall Lawn Food – Best Overall for Zoysia Health
The Scotts Turf Builder WinterGuard Fall Lawn Food is one of the most trusted fertilizers for Zoysia grass during fall. It helps the grass absorb essential nutrients before winter dormancy sets in, leading to stronger roots and a greener spring comeback. Its slow-release formula ensures nutrients are delivered evenly over time.
This fertilizer contains a balanced N-P-K ratio of 32-0-10, ideal for strengthening Zoysia grass without promoting excessive growth. It also improves water absorption efficiency, reducing the need for frequent irrigation. Users have reported up to a 30% improvement in root mass density within 60 days of application.
Applying this fertilizer in early to mid-fall ensures the Zoysia lawn stays resilient through winter and rebounds beautifully in spring. The granular form is easy to spread, whether you use a rotary or drop spreader.
Pros:
- Deep root growth
- Even nutrient release
- Easy application
- Winter protection
- Improves density
- Affordable option
- Promotes green-up
Cons:
- Not organic
- Requires spreader
- May burn if overused
2. Milorganite 0636 Organic Nitrogen Fertilizer – Best Eco-Friendly Option
Milorganite 0636 Organic Nitrogen Fertilizer is an excellent choice for homeowners seeking a sustainable option for their Zoysia lawns. It’s made from heat-dried microbes that have digested organic matter, providing a natural source of nitrogen. This fertilizer is ideal for fall since it releases nutrients slowly, supporting root development over the cool months.
The 6-4-0 N-P-K ratio ensures balanced nourishment without overstimulating blade growth. According to a 2024 environmental study, lawns treated with Milorganite retained 20% more soil moisture compared to those treated with synthetic fertilizers. This promotes a healthy soil ecosystem beneficial to Zoysia.
It’s also safe for kids, pets, and the environment—perfect for family lawns. You can apply it without worrying about runoff or burning, even if it rains shortly after.
Pros:
- Organic formula
- Safe for pets
- Slow nutrient release
- No burning risk
- Improves soil health
- Enhances moisture retention
- Environmentally friendly
Cons:
- Low nitrogen content
- Slight odor
- Takes time to show results
3. Andersons PGF Complete 16-4-8 – Best Professional-Grade Fertilizer
The Andersons PGF Complete 16-4-8 Fertilizer is designed for professional-level results and used by many golf course managers to maintain Zoysia turf. It contains iron and micronutrients, which enhance deep green color and promote strong root systems in fall.
Its fine particles ensure even coverage and better nutrient absorption. The balanced 16-4-8 ratio supports steady growth and resilience against cold stress. Tests show lawns treated with Andersons PGF demonstrated 35% faster spring green-up compared to untreated plots.
This fertilizer is perfect for homeowners who want golf-course-level results. Apply it with a broadcast spreader and water immediately after for optimal performance.
Pros:
- Uniform particles
- Rich in iron
- Professional quality
- Boosts color
- Strengthens roots
- Covers large area
- Improves resilience
Cons:
- Higher cost
- Needs watering in
- Not organic
4. Pennington UltraGreen Lawn Fertilizer 30-0-4 – Best for Fast Green-Up
The Pennington UltraGreen 30-0-4 is a powerful fall fertilizer that delivers rapid results for Zoysia lawns. Its high nitrogen content ensures rich color and robust turf growth, while added potassium improves stress tolerance before winter.
This formula includes iron for enhanced greening and polymer-coated nitrogen for slow release. Studies indicate Zoysia grass fertilized with Pennington UltraGreen achieved up to 40% improved winter survival rates compared to untreated lawns.
It’s a good choice for homeowners who want visible improvement within weeks while still ensuring long-term soil health. Apply in early fall for best results.
Pros:
- Rapid results
- Rich green color
- Slow-release nitrogen
- Iron-enriched
- Improves winter survival
- Long-lasting feed
- Strengthens turf
Cons:
- Not organic
- May stain pavement
- Requires watering after
5. Jonathan Green Winter Survival Fall Fertilizer – Best for Cold Resistance
The Jonathan Green Winter Survival Fall Fertilizer helps prepare Zoysia grass for harsh winter conditions. It features a balanced 10-0-20 formula that promotes root development and cold resistance without overstimulating growth.
The high potassium content enhances the lawn’s ability to store energy and withstand temperature changes. In independent trials, lawns treated with this fertilizer experienced 25% less winter dieback compared to untreated areas.
It’s an excellent pick for cooler regions or areas prone to frost. Apply once temperatures start to drop but before the first freeze for maximum effect.
Pros:
- Cold resistance
- High potassium
- Prevents winter dieback
- Improves root growth
- Energy storage boost
- Strengthens blades
- Easy to apply
Cons:
- Moderate nitrogen
- Slightly pricey
- Not fully organic
6. Safer Brand Lawn Restore Fertilizer – Best Organic Performance
Safer Brand Lawn Restore Fertilizer offers a natural and pet-safe way to feed your Zoysia grass during fall. Its N-P-K ratio of 10-0-6 delivers the essential nutrients needed for strong root development without synthetic chemicals.
Made from plant-based materials, this fertilizer releases nutrients slowly, feeding for up to 8 weeks. According to customer reports, lawns treated with Safer Brand showed 28% thicker turf by late fall. It’s also odorless and safe for children and pets.
If you value sustainability and safety, this is one of the best organic choices for your fall lawn routine.
Pros:
- Organic formula
- Pet-friendly
- Long-lasting feed
- Odor-free
- Enhances soil life
- Thickens turf
- Sustainable option
Cons:
- Mild nitrogen boost
- Takes time
- Limited availability
7. GreenView Fall Lawn Food 26-0-12 – Best for Root Strengthening
The GreenView Fall Lawn Food 26-0-12 is ideal for homeowners seeking superior root growth and resilience in their Zoysia lawns. With a powerful 26-0-12 N-P-K formula, it provides balanced feeding that fortifies the root zone and boosts winter hardiness.
It uses time-released nitrogen, ensuring steady nourishment throughout the fall season. University turf trials found that GreenView improved root depth by 18% within 45 days. This helps Zoysia grass recover faster after winter dormancy.
Apply this fertilizer once in mid-fall to strengthen your lawn before winter sets in.
Pros:
- Deep root growth
- Balanced nutrients
- Time-released nitrogen
- Improves winter strength
- Boosts recovery
- Enhances durability
- Great coverage
Cons:
- Synthetic formula
- Slightly expensive
- Requires dry conditions
8. Espoma Organic Fall Fertilizer – Best Natural Source of Nutrients
The Espoma Organic Fall Fertilizer is a natural, eco-conscious option that supports soil health while preparing Zoysia grass for winter. It features a 10-0-6 N-P-K ratio with organic ingredients like feather meal and poultry manure.
It enriches the soil with beneficial microbes that improve nutrient uptake. Research by the Organic Turf Institute found Espoma-treated lawns had 22% better root density after three months compared to untreated turf.
Perfect for eco-friendly homeowners, it promotes long-term soil vitality and sustainable lawn health.
Pros:
- All-natural
- Microbe-rich
- Improves soil texture
- Safe for pets
- Boosts root density
- Eco-friendly
- Long-term health
Cons:
- Mild odor
- Slower results
- Not for quick greening
9. Simple Lawn Solutions 16-4-8 Liquid Fertilizer – Best Liquid Formula
The Simple Lawn Solutions 16-4-8 Liquid Fertilizer is a high-quality, liquid-based option for those who prefer fast-acting results. Its balanced nutrient profile is designed for Zoysia grass during fall, enhancing root development and leaf strength.
The liquid format ensures quick absorption, with visible improvements often within days. Studies show liquid fertilizers can be absorbed 50% faster than granular forms, providing immediate nourishment.
It’s perfect for homeowners who want control and speed during their fall feeding schedule.
Pros:
- Fast absorption
- Easy to apply
- Balanced nutrients
- Immediate results
- Strengthens leaves
- Improves soil condition
- Boosts color
Cons:
- Frequent application
- Costly per use
- Needs sprayer
10. Scotts Green Max Lawn Food – Best for Deep Green Color
Scotts Green Max Lawn Food gives your Zoysia lawn an instant color boost while providing essential fall nutrients. It combines nitrogen and iron to deliver a deep green lawn in just a few days without overstimulating growth.
Its dual-action formula feeds your grass and strengthens roots simultaneously. Test data from Scotts show lawns achieved two times greener color compared to untreated areas within one week.
It’s ideal for homeowners wanting a lush, green appearance before winter while still promoting root strength.
Pros:
- Deep green color
- Fast results
- Iron-enriched
- Strengthens roots
- Easy application
- Affordable
- Great coverage
Cons:
- Not organic
- May stain surfaces
- Needs watering
Fertilizing Zoysia Grass in Fall FAQs
1. When is the best time to fertilize Zoysia grass in fall?
The best time is early to mid-fall, about six to eight weeks before the first frost. This allows the fertilizer to work before the grass goes dormant.
2. How often should I fertilize Zoysia grass?
Typically, Zoysia grass should be fertilized 2 to 4 times per year, with the fall feeding being one of the most critical for winter survival.
3. Should I water after fertilizing?
Yes. Watering after applying fertilizer helps activate the nutrients and ensures even distribution into the root zone.
4. Can I use organic fertilizers on Zoysia grass?
Absolutely. Organic options like Milorganite and Espoma work well and promote long-term soil health without synthetic chemicals.
5. What happens if I over-fertilize my Zoysia lawn?
Over-fertilization can lead to burning, excessive thatch buildup, and nutrient runoff. Always follow label directions carefully.
6. Is liquid fertilizer better than granular for Zoysia?
Liquid fertilizers act faster, but granular types provide longer-lasting feeding. The best choice depends on your lawn care goals.
7. Do I need to mow before applying fertilizer?
Yes. Mowing ensures that the fertilizer reaches the soil directly and prevents granules from getting trapped in the grass blades.
Conclusion
Caring for your Zoysia grass in the fall is one of the most important steps to ensure a lush, green lawn next spring. The fertilizers listed above—ranging from Scotts Turf Builder to Espoma Organic—are proven to strengthen roots, improve resilience, and enhance soil health.
Always apply them at the right time and water thoroughly for best absorption. Remember, a healthy fall feeding sets the foundation for year-round lawn beauty.
Start your fall lawn care today and experience the difference a properly nourished Zoysia lawn can make next spring. Your lush, vibrant yard is just one application away!