Symton
Sassy Frass Soil Amendment
Best organic nutrient booster for home gardeners and hydroponic enthusiasts.
Enhance your garden with Symton Sassy Frass Soil Amendment, an organic fertilizer derived from Black Soldier Fly larvae. This nutrient-rich product promotes rapid mineralization and boosts plant defense against diseases thanks to its chitin content. It's packed with beneficial microbes to improve soil health and is water-soluble for easy application in hydroponics and fertigation. Ideal for vegetable gardens, houseplants, and lawns, it supports robust plant growth from germination to maturity.
$12.50
Owner Satisfaction
4.6
/ 5
Category Rank
1940
/ 4445
#1940 in Fertilizers
Price vs Category Average
-80%
Below average
OMRI Listed
true
/ true
Who it's for
- Gardeners seeking natural protection against common pests and environmental stress
- Organic growers focused on long-term soil health and moisture retention
- Indoor plant owners needing a gentle, burn-free nutrient solution
Who should skip it
- Budget-conscious gardeners prioritizing cost-effective fertilization options
- Farmers growing heavy-feeding crops requiring high-potency nutrient spikes
- Indoor enthusiasts sensitive to strong, lingering organic odors
Performance breakdown
Nutrient Bioavailability
Rapid mineralization ensures plants access essential nutrients almost immediately upon application.
Application Versatility
Seamlessly transitions from traditional soil top-dressing to modern hydroponic fertigation systems.
Disease Resistance
High chitin content provides a natural, robust defense against common pathogens.
Microbial Activity
Packed with beneficial microbes that actively revitalize tired, depleted garden soil.
Odor Control
Low-odor formulation makes indoor use pleasant and manageable for houseplant enthusiasts.
Organic Integrity
OMRI listing guarantees strict compliance for high-standard organic gardening practices.
Key Specs
OMRI Listed
true
Weight
5.0 lbs
Compost Form
Granular
Nutrient Focus
High Nitrogen
Odor Level
Low Odor
Packaging Type
Bag
Microbial Enhancement
true
Compost Material Source
Manure Based
Features
- Organic fertilizer from insect larvae
- Boosts plant defense with chitin
- Contains beneficial soil microbes
- Promotes rapid nutrient release
- Water-soluble for hydroponics
- Supports seed germination
- Low odor formulation
- OMRI Listed for organic gardening
What customers say
Gardeners are genuinely impressed by the quality and efficacy of Sassy Frass, reporting tangible improvements in plant health and robust growth across diverse crops. The most consistent feedback centers on the product delivering noticeable results quickly, establishing it as a highly reliable soil booster. Consumers feel the superior performance justifies the price point, confirming that this amendment offers exceptional value for serious growers looking to elevate their gardening success.
Know before you buy
Chitin is a natural biopolymer found in insect exoskeletons that triggers a plant's innate immune response. By introducing it to your soil, you help your plants develop stronger defenses against common diseases and environmental stressors.
Yes, Sassy Frass is water-soluble, making it suitable for both hydroponics and fertigation systems. It provides a clean, nutrient-rich solution without the clogging issues often associated with traditional composts.
No, Sassy Frass is formulated to be low-odor. While it is derived from organic insect larvae, it does not have the pungent smell typically associated with manure-based fertilizers.
Absolutely. Because it is organic and low-odor, it is an excellent choice for indoor potting mixes. It provides a gentle, nutrient-dense boost that supports growth from seed germination through maturity.
Being OMRI Listed means that Sassy Frass has been reviewed by the Organic Materials Review Institute and meets the strict standards for use in certified organic production. You can be confident that it is free from synthetic chemicals and prohibited substances.
A low carbon-to-nitrogen ratio of 14 indicates that the nutrients in the frass are highly bioavailable. This allows for rapid mineralization, meaning your plants can access and absorb the nitrogen and other nutrients much faster than with high-carbon composts.
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