Pure worm castings
A straightforward, single-ingredient product with nothing else mixed into the finished product.
Good growing starts from the ground up.
100% Pure Red Wiggler Worm Castings —
Made in Florida
One finished ingredientNothing else mixed into the finished product
Produced by Captain Jim WillcoxProduced in Florida
Four sizesPacked to suit the amount you need
Simple by nature
One ingredient.
Made close to home.
Capt Jim’s Ultimate Worm Castings are produced from Red Wigglers that are fed compost & our proprietary worm food. The finished product is all worm castings.
Raised by Red Wigglers
The worm species behind every batch, cared for by Captain Jim’s in Florida.
Packed by the size
The 1 and 2.5 gallon sizes come in a resealable pouch, and the 5 and 7 gallon sizes come in a woven sack.
Straight from the sack, ready to use.
This organic microbial soil conditioner is safe for all plant types when used properly and won't burn roots. It delivers nutrients gradually, through a slow-release process, and contains beneficial bacteria and fungi that support healthy soil. Worm castings improve water retention in sandy soil and help improve drainage in heavy or clay soil. They contain humic acids and trace minerals that encourage healthy root development and can help plants tolerate environmental stress. Worm castings also contain nitrogen, phosphorus, and potassium, and can improve seed germination.
Florida Keys roots
From our worms
to your garden.
We produce our castings in Florida using Red Wigglers, compost, and a proprietary worm food. No undisclosed ingredients are added to the finished product.
Florida
Red Wigglers
Captain Jim’s produced
Two simple starting points
Easy to work into your routine.
Potting mixes
Blend 30% worm castings with 70% organic potting soil.
Seed starting
Blend 50% worm castings with 50% organic potting soil for magical results.
Good growing starts from the ground up.
Start with pure worm castings produced by Captain Jim’s in Florida.