Urban Worm Company Worm Castings
Best organic amendment for gardeners seeking healthier soil and higher yields.
Revitalize your soil with Urban Worm Company Worm Castings, an OMRI-listed organic amendment. These castings feature a balanced fungal-to-bacterial ratio and high humic content, plus nitrogen-cycling microbes. Properly stored, they maintain quality for over six months. Expect accelerated seed germination, improved moisture retention, and natural pest suppression. This product significantly boosts plant growth and crop yields, ideal for vegetable gardens and lawns seeking natural enhancement.
$25.00
Owner Satisfaction
4.7
/ 5
Category Rank
6
/ 185
#6 in Compost
Price vs Category Average
+3%
Above average
Who it's for
- Gardeners seeking gentle, long-term nourishment for delicate plants
- Organic growers aiming to improve soil health and water retention
- Safety-conscious parents and pet owners gardening at home
Who should skip it
- Budget-focused gardeners managing large plots or raised beds
- Growers needing rapid, high-potency nutrient boosts for hungry plants
- Shoppers unable to guarantee proper storage conditions for microbial health
Performance breakdown
Microbial Activity
Rich in nitrogen-cycling microbes that actively revitalize tired garden soil.
Soil Structure Impact
Significantly improves soil aeration and moisture retention for healthier root systems.
Germination Efficacy
Accelerates seed starting with a nutrient-dense, easily accessible organic profile.
Pest Suppression
Natural biological defenses help keep common pathogens and pests at bay.
Shelf Stability
Maintains peak microbial quality for over six months when stored correctly.
Application Versatility
Perfectly balanced for everything from delicate seedlings to established vegetable patches.
Key Specs
OMRI Listed
Weight
5.0 lbs
Form
Granular
Nutrient Focus
High Nitrogen
Odor Level
Low
Packaging
Bag
Release Rate
Slow Release
Microbial Enhancement
Yes
Features
- Approved for organic gardening
- Naturally improves soil structure
- Increases crop yields
- Suppresses pests and pathogens
- Enhances water retention
- Maintains quality for 6+ months
- Accelerates seed germination
- Balanced fungal:bacterial ratio
What customers say
Gardeners overwhelmingly praise Urban Worm Company Worm Castings for their exceptional purity and potency. Reviewers consistently note the absence of fillers, focusing instead on dramatic improvements in plant health. Customers report robust root development and lush foliage, calling the product a game changer for revitalizing soil. Its consistent texture makes it easy to incorporate or brew into compost tea. While the initial cost is higher than generic options, users find the superior effectiveness delivers strong long-term value. The product’s proven performance and reliable delivery solidify high customer satisfaction among serious organic growers.
Know before you buy
Being OMRI-listed means the product has been independently verified to meet the strict standards for use in certified organic gardening and farming. You can be confident that these castings are free from synthetic additives and chemicals.
Unlike synthetic fertilizers that provide a quick nutrient spike, worm castings offer a slow-release, balanced profile of nutrients and beneficial microbes. They work by improving the soil's biological health, which leads to better root development and more consistent plant growth over time.
No, these castings have a very low odor profile. They typically smell like fresh, earthy soil, making them suitable for both outdoor vegetable gardens and indoor container plants.
Yes, they are excellent for seed starting. The castings help accelerate germination and provide a nutrient-rich environment for young seedlings to establish strong root systems early on.
When stored properly in a cool, dry place, the microbial activity and nutrient quality remain stable for at least six months. Be sure to keep the bag sealed to maintain the ideal moisture level.
Worm castings improve the physical structure of your soil by increasing its ability to hold moisture and nutrients. This reduces the frequency of watering needed and helps prevent plants from drying out during hot spells.
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