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Coverage Area
Price
50 lbs
2,000 Sq. ft
$119.99
28 in stock
$119.99
28 in stock
Suståne 4-6-4 is a natural, organic slow-release starter fertilizer enriched with 10% humates, chelated micronutrients, and stabilized compost to boost soil structure, water retention, and root development. Ideal for turf and landscape establishment, it strengthens plant resilience in heat and drought while safeguarding water quality.
Shipping
Nature’s Seed processes domestic orders from its Lehi, Utah warehouse within 3–5 business days (up to 5 days during peak season) . Standard UPS shipping takes an additional 2–7 business days, depending on destination . Orders over $150 qualify for free “Economy” shipping within the contiguous U.S. (you must select this option at checkout), while smaller orders incur a calculated shipping fee, typically $10 for standard economy delivery. Alaska and Hawaii are eligible for shipping, though free shipping does not apply there, and rural, remote, or expedited shipments may require extra fees or 1–2 extra delivery days . More information
Product Overview
Suståne 4-6-4 is a natural organic, slow-release starter fertilizer that replenishes soils with a rich supply of humus (stabilized organic matter) and essential nutrients required for long-term fertility. It combines slow-release nutrients with organic substances, derived from biologically stable compost, natural potash, and feathermeal.
• Adds approximately 10% humates by volume
• Increases nutrient and water holding capacity
• Strengthens plant tolerance to hot, dry conditions
• Enhances root development
• Improves buffering against changes in soil pH
• Supports natural suppression of plant pathogens
• Boosts soil porosity and stability for improved root and water retention
Suståne 4-6-4 accelerates turf establishment with a complete package of slow-release nitrogen, chelated micronutrients, organic phosphorus, and humic substances. It has consistently outperformed synthetic turf starter fertilizers and other humate-based products. Professional landscapers prefer Suståne 4-6-4 for high-maintenance turf and landscaped environments. While synthetic fertilizers offer nutrients, they lack the organic matter required for sustained, quality growth. Fully composted fertilizers like Suståne increase beneficial microbial activity, making nutrients more available to plants.
Additionally, Suståne 4-6-4 is a responsible choice for the environment. Unlike many traditional lawn fertilizers, it minimizes risks of groundwater pollution. Proper application and cleanup practices—combined with its slow-release nature—make it a smart and sustainable fertilizer solution.
Directions
Before Seeding: Broadcast and incorporate into the top 4” of soil – 25 lbs per 1,000 sq. ft.
Flower & Shrub Beds: For preparing beds before planting:
• Light, High Sandy Soil – 20 lbs per 100 sq. ft.
• Medium, Clay Loam Soil – 15 lbs per 100 sq. ft.
• Heavy, Silty, Clay Loam – 10 lbs per 100 sq. ft.
Additional Resources
For complete specifications and safety information, view the documents below:
Suståne 4-6-4 Specifications
Suståne 4-6-4 Label
Suståne 4-6-4 Material Safety Data Sheet
| Weight | 50 lbs |
|---|---|
| Keep or unkeep |
Keep |
| Lowest price |
86.360000 |
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