Order Wholesale worm Castings

Inch by Inch Worm Castings are Made in Tucson, AZ

Whether you’re a cannabis farmer or an organic grower or orchard manager, we can meet your wholesale needs. Worm castings are an organic and natural alternative to harsh chemical fertilizers.


Fill out the form below and let us know how much you’re interested in and how often and we’ll be in touch right away!




    2002 E 14th St
    Tucson, AZ 85719

    Hours: 8:30 – 12:30 Monday through Saturday, or by Appointment

    “I have used their incredible castings on everything from fruit trees to tomatoes with nothing less than explosive increase. You will see stronger growth with healthier plants yielding more fruit. Don’t hesitate to try their worm castings your garden will thank you with much greater yields. Get your order in and then get ready to be amazed!”

    Dean K. in Tucson, AZ

    “Inch by Inch has provided me with worm castings for the past couple of years. These form the best possible fertilizer and have helped my garden tremendously!”

    Gautam G. in Tucson, AZ