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Wiggle Worm 100% Pure Organic Mineral-Dense Worm Castings Fertilizer in Resealable Zipper Pouch, 4.5lbs - Improves Soil Fertility and Aeration for Growing Better Houseplants, Vegetables, and More

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Availability: In Stock.
Fulfilled by Esbenshades Garden Center

Arrives Monday, Aug 10
Order within 16 hours and 53 minutes
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Size: 1 pack


Features

  • 100% Pure Castings: Each bag of WIGGLE WORM Worm Castings is OMRI listed organic, nutrient-rich, and mineral-dense pure castings, not vermicompost or uneaten worm bedding, and is one of the only castings products to be recognized as a fertilizer due to our special manufacturing and harvesting process.
  • Improves Soil Structure: WIGGLE WORM Pure Worm Castings are tiny, football-shaped particles which help improve soil aeration, while also creating proper drainage in both loose and dense soils for optimal water retention.
  • Easy-to-Use: Apply WIGGLE WORM worm castings into your garden soil above the root zone three times a year or to the hole during transplant or seeding for best effects a handful, or half a cup is all you need to add nutrients and boost microorganisms in the soil to grow better, healthier roots for fuller and more fruitful plants.
  • Long-lasting and Convenient Garden Solution: Pure Worm Castings fertilizer goes further than most standard fertilizers as you only need to use a small amount for great results, and is suitable for both indoor and outdoor use as its odorless and non-toxic.
  • Convenient Packaging: Comes in a stand up zipper pouch which is convenient for both indoor use and storage Simply use what you need, and seal the bag!

Description

Wiggle Worm Pure Worm Castings are a natural, all-organic plant food, delivered straight from Mother Nature in its purest form. For millions of years, earthworms have been one of nature’s most powerful creators of nutrient-rich soil. When concentrated beyond what’s typically found in nature, these gentle, non-burning, long-lasting castings provide remarkable benefits that help plants thrive. Line planting holes/furrows with 1-2" of Wiggle Worm. Plant and cover. Side dress during growing season: 1/2 cup per plant once every 2 months. Use 1 part Wiggle Worm Pure Worm Castings to 4 parts soil. Established Plants: 1" of Wiggle Worm to top of soil. Mix in. Repeat every 2-3 months. Work 1/2 cup of Wiggle Worm into the soil above the root zone taking care not to damage shallow roots. Apply in spring, early summer, and early fall. New: Mix 1 part Wiggle Worm to 3 parts soil. Put in planting hole. Established: Use 2lb per inch of trunk diameter. Spread over root area and water. New: 20-30 lbs per 1000 sq. ft. Work into the soil. Sow grass seed. Water. Established: 15-20 lbs per 1000 sq. ft. as a top dress 2-3 times a year. Soak 1 part castings in 3 parts water for 12-24 hours. Aerate if possible. Stir well and water plants as usual. Best when used within 24 hours. Spread a thin layer of Wiggle Worm Pure Worm Castings between each new layer of material to be composted. Do not apply near water or drains. Avoid applying before heavy rain. Apply only to lawn/garden; sweep spills back into garden beds or lawn areas. Wiggle Worm Pure Worm Castings are OMRI Listed, meaning they've been independently reviewed and approved to meet USDA National Organic Program standards, making them safe and compliant for organic gardens and farms. What makes Wiggle Worm Pure Worm Castings different from other fertilizers? Wiggle Worm Pure Worm Castings are made from 100% worm castings. Nutrients are naturally broken down by earthworms into water-soluble forms that plants can easily absorb. Most other fertilizers do not provide nutrients in such plant-ready forms. Do Wiggle Worm Pure Worm Castings work quickly? Yes. The nutrients in Wiggle Worm Pure Worm Castings are water-soluble, allowing plants to quickly absorb what they need for fast results while still providing long-term nutrition. Are Wiggle Worm Pure Worm Casting safe for all plants and roots? Yes. It is odorless, non-burning, and safe to use on all plants, even in higher concentrations, without risk of damaging roots. How do Wiggle Worm Pure Worm Castings improve soil health? Wiggle Worm Soil Builder adds beneficial bacteria and microbes, improves soil aeration, enhances water retention, and supports strong root growth, creating healthy living soil. How does it compare to chemical fertilizers? Unlike chemical fertilizers that can harm soil microbiology and wash away easily, Wiggle Worm Pure Worm Castings support long-term soil health, reduce nutrient loss, and promote sustainable plant growth. Pure Worm Castings Plus Worm Egg Material Raised Bed Mix Worm Casting Tea UNCO Industries has been in worm farming for over 45 years, beginning as a small redworm bait operation in an old dairy barn. As demand grew, the company expanded and invested in controlled, scalable production. In 1983 it established a climate-controlled facility, and in 2011 moved to a much larger site in Union Grove, Wisconsin to support continued growth. Our unique process delivers pure earthworm castings free of impurities like undigested bedding, stones, straw, and worm eggs. Our multi-screening process removes eggs without heat or sterilization, preserving beneficial bacteria and microbes. An organic material containing a wide variety of minerals and trace elements Yes, in addition to readily available nutrients, it contains nutrients that release slowly, supporting plant growth for weeks or even months. Our Pure Worm Castings are OMRI listed organic, nutrient-rich, and mineral-dense pure castings, not vermicompost or uneaten worm bedding, and is one of the only castings products to be recognized as a fertilizer due to our special manufacturing and harvesting process. Visit the Store

Brand: Wiggle Worm


Item Weight: 1.88 Kilograms


Item Form: Granules


Liquid Volume: 260 Cubic Inches


Specific Uses For Product: Soil Conditioning


Brand Name: Wiggle Worm


Model Number: 602


Global Trade Identification Number: 01


Manufacturer: Wiggle Worm


Number of Items: 1


UPC: 795062603442 090147439801 355111055747 355111056959 355111057413


Unit Count: 72.0 Ounce


Part Number: WW4.5


Item Type Name: Worm Castings


Included Components: 1 bag


Item Weight: 1.88 Kilograms


Liquid Volume: 260 Cubic Inches


Item Form: Granules


Specific Uses For Product: Soil Conditioning


Coverage: Half


Target Species: Excellent for houseplants, vegetables, flowers, and more


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Aug 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Should be in everyone’s organic tool box
Size: 1 pack
Love having a bag of this around good for indoor growing recycling used soil couple of hand fills keep damp reuse your soil! Outdoors I fill the holes with some before transplanting mix some in around the plant. Quality stuff.
Reviewed in the United States on June 6, 2026 by Robert Frost

  • Wiggle worm
Size: 1 pack
Absolutely amazing product.mixed in with regular potting soil grew plants faster and more vibrant as far as coloration
Reviewed in the United States on June 12, 2026 by Michael Oakes

  • Wiggly Wonder: 4.5 Pounds of Nutrient-Rich Gold for Your Garden!
Size: 1 pack
Give your plants the nutrient boost they deserve with UNCO INDUSTRIES Worm Castings, a 4.5-pound bag of rich, organic goodness that promises to supercharge your garden's growth! This all-natural, eco-friendly soil amendment is derived from the finest wiggly workers – worms! Let's delve into the wondrous world of worm castings and unearth their benefits. Pros: Nutrient powerhouse: Worm castings are packed with essential nutrients, minerals, and beneficial microbes, ensuring your plants receive the best possible nourishment. All-natural goodness: These worm castings are 100% organic, providing a chemical-free and eco-friendly alternative to synthetic fertilizers. Versatile vitality: Suitable for use with a wide variety of plants, including fruits, vegetables, flowers, and ornamentals, these castings enhance the overall health and growth of your garden. Soil savior: Worm castings not only feed your plants but also improve the structure and water retention of your soil, promoting healthier root development and growth. Easy application: The 4.5-pound bag makes it simple to mix the castings into your soil or use them as a top dressing, ensuring your plants reap the full benefits. Cons: Weighty expectations: Some users may find the 4.5-pound bag to be a little on the small side for larger gardens or more extensive applications. However, the nutrient-rich content of these castings ensures a little goes a long way. In conclusion, UNCO INDUSTRIES Worm Castings offer 4.5 pounds of nutrient-rich gold for your garden, providing an all-natural, eco-friendly solution to supercharge your plants' growth. With their versatile vitality and soil-improving properties, these wiggly wonders are an essential addition to any gardener's arsenal. Give your plants the royal treatment with this wondrous worm casting experience! ... show more
Reviewed in the United States on March 17, 2023 by Mike S.

  • Who Knew WORM Poop Could Be So Magical?
Size: 1 pack
I recently started using Wiggle Worm 100% Pure Organic Worm Castings Fertilizer, and let me tell you, this stuff is pure magic. Who knew that worm poop could make plants so happy? Certainly not me! The worms must have had a secret meeting to discuss how to make my plants thrive, because after using this, my garden is practically doing a happy dance. My plants are growing faster than my ability to keep up with the weeding! If you’re skeptical about using worm castings, don’t be. This fertilizer is like a VIP pass to Plant Paradise. It’s the best kept secret in gardening – and it’s all thanks to some very industrious worms. Highly recommended if you want your plants to experience a growth spurt that even your green thumb will envy! ... show more
Reviewed in the United States on September 4, 2024 by Christy s.

  • Keep the soil moist longer
Size: 1 pack
Keep the soil moist longer
Reviewed in the United States on April 1, 2026 by A. borzi

  • Good quality
Size: 1 pack
I’m happy with the price and quality of these organic worm castings, looking forward to seeing the results in my garden this year
Reviewed in the United States on June 1, 2026 by Erik & Kaitlyn

  • PLANT STEROIDS!!!
Size: 1 pack
This is my first year gardening. After thorough research, many sources recommended worm castings to increase the growth of bacteria, fungi & other beneficial microbes in the soil for plants. I purchased this product because of the many good reviews. I like to make worm tea using ~ 5 gallons of dechlorinated hose water or rainwater (most municipal water is treated with chlorine/chloramine to kill bacteria/mold - which would defeat the purpose of the beneficial microbes in worm castings. If using tap water, let it sit outside for 24 hours to let the chlorine/chloramine evaporate before making the tea. Or boil the water for 20mins to speed up the process but let it cool first) and 1/4 cup of the castings. Let the tea steep for at most 24 hours, mixing it throughout the day to aerate. Water with the tea until you see the liquid pooling on the top of the soil or use your own judgement. Idk. I prefer making worm tea because it is absorbed more rapidly. So far I’ve used the worm tea twice on a weekly basis and I’m not sure if there’s a direct correlation yet, but every time I’ve used the tea there was IMMEDIATE results. My carrots which are notorious for being difficult to germinate, went from having two/three weak looking sprouts to maybe a dozen+ healthy, green sprouts. My eggplants that were taking a while to sprout, sprouted immediately the next day. The same goes for the arugula. The potato greens FLOURISHED overnight. I can go on and on about the immediate growth I’ve witnessed on all my plants after using worm tea but you get the point. Like I said, I’ve only used the worm tea twice so far and on a weekly basis so I can’t vouch for its complete efficacy just yet but I am SOLD! This stuff does wonders. HIGHLY RECOMMEND! ... show more
Reviewed in the United States on May 23, 2020 by Allen L.

  • GOOD STUFF SEE
Size: 1 pack
GOOD STUFF BABY
Reviewed in the United States on June 18, 2026 by OldtimeRThom

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