Sustane® 8-2-4 All Natural Fertilizer

Sustane® 8-2-4 All Natural Fertilizer


$115.00 Regular price
  • Ships directly from manufacturer - departs in about 3 days

Apply Suståne® 8-2-4 granulated fertilizer whenever you're looking for a natural, budget-friendly way to kick-start lawns and gardens. The 8-2-4 (4-1-2) NPK ratio is an excellent base for spring turfgrass fertilization and is also beneficial for the establishment or reestablishment of vegetation and bedding plants. With a slow-release formula that includes organic humus to provide dense, balanced macro- and micronutrients, Suståne fertilizer will feed crops for at least 45 days and can sustain its release for up to 12 weeks. It also improves soil stability and adds resistance to pathogens, arid environments and pH changes.

Greenhouse Megastore has 50-pound bags of Suståne 8-2-4 fertilizer for large home lawns and gardens as well as commercial landscaping. It's OMRI-listed as 100% organic for in-ground soil, potting mixes or general maintenance and has already been fully composted so you don't need to sterilize it before application. Stock up on high-quality fertilizer with our Low Price Guarantee and free shipping on qualifying orders.

Recommended Use:

For use in the production of certified organic gardens, turfgrass and landscape maintenance, greenhouse bedding plants and annual establishment, erosion control, native reestablishment and soil reclamation and remediation.


  • Rich in humic acids
  • Medium Grade: 200 SGN (2.8-1.4 mm)
  • Increases the nutrient and water-holding capacity of the soil.
  • Strengthens a plant's tolerance against hot dry conditions.
  • Promotes greater root development.
  • Improves buffering against changes in soil pH.
  • Increases the soil's ability to suppress plant pathogens.
  • Increases soil porosity and stability for greater root development and water-holding capacity.
  • Always safe for plants, people, pollinators and the environment.
  • Manufactured by Suståne in the U.S. at an EPA-permitted facility.
  • Pathogen and weed-free, no blood or bone products. Allowed for export to over 60 countries worldwide.
  • Aerobic composting eliminates animal and rodent attraction to the application site.
  • Contains naturally occurring beneficial bacteria and fungi that are necessary to begin the nutrient life cycle in poor soil.
  • Suståne is fully composted, eliminating the need for sterilization and permitting a healthy environment for beneficial microbial populations.

Guaranteed Analysis:

Total Nitrogen (N) 8.0%
Ammoniacal Nitrogen 0.40%
Water Soluble Organic Nitrogen 0.40%
Water Insoluble Organic Nitrogen* 7.20%
Available Phosphate (P2O5) 2.0%
Soluble Potash (K2O) 4.0%
Calcium (Ca) 2.0%

Total Plant Nutrition:

Iron 0.50%
Manganese 0.05%
Zinc 0.05%
Humic Acid 6.00%
Organic Matter 65.0%
pH 6.8
Carbon : Nitrogen (C:N) 4:1
Bulk Density lb./cu. ft. 38
% of Total N as Slow-Release 90.0%

Derived from aerobically composted turkey litter, feather meal, and sulfate of potash.
*7.2% slowly available nitrogen from aerobically composted turkey litter and feather meal.

Suståne's Integrated Soil Management Program:

Turf Establishment, Seeding, New Lawn Construction, Laying Sod and Sprigging:
Suståne® 8-2-4 is a complete package fertilizer containing slow-release nitrogen, chelated micronutrients, organic phosphorous and humic substances. It has been demonstrated time and again to surpass synthetic turf starter fertilizers and other sources of humates and plant bio stimulants.

Turfgrass & Landscape Maintenance:
Professional landscapers have increasingly turned to Suståne® 8-2-4 for use on high maintenance turf and landscaped environments. While synthetic fertilizers supply plant growth nutrients, they do not supply the organic matter required to maintain quality growth. Using fully composted natural fertilizers increases the levels of beneficial microbial activity, which in turn converts nutrients into plant-available forms.

Incorporating into Potting Soil Mixes and other Container Substrates:
Sustane® 8-2-4 provides a constant release of nutrients when used with container substrates with an average temperature of 70oF / 21oC. When determining application rates consider all cultural practices including irrigation, container substrate physical characteristics, and growing environment.

Soil Preparation:
Light, High Sandy Soil: 10 lb. per 100 square feet of bed
Medium, Clay Loam Soil: 7.5 lb. per 100 square feet of bed
Heavy, Silty, Clay Loam: 5 lb. per 100 square feet of bed

Mix with water solution at a ratio of 4 lb. Suståne® 8-2-4 to 1 gallon of water or 2 tons per 1,000-gallon tank).

Additional Information

Spec Sheet (PDF)
OMRI Listed Certification (PDF)
General Guidelines (PDF)
Registered Material Certification (PDF)
Safety Data Sheet (PDF)


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