The shed offers Bonney Good Sumner Grow--and use of a shove--for free!
The shed offers Sumner Grow–and use of a shove–for free!

Sumner Grow is a humus that is derived from biosolids produced from wastewater treatment. Biosolids are an alternative to chemicals to restore soil health and provide much needed slow release (non-burning) nitrogen to lawns, shrubs, trees and gardens.

Why Use It?
Rather than pay money for chemical fertilizers, this humus is

  • Safe to use in all gardens even those with pets and children
  • Seed-free
  • 60% organic with 4% slow release nitrogen
  • Enriches the “soil web” to build new soil
  • Loosens hard soil
  • Increases fertilizer uptake and utilization
  • Develops greater root systems
  • Yields healthier and stronger plants
  • Increases the water holding capacity of the soil
  • Stores moisture as surrounding soil loses water
  • Free!

How Do I Get It?
Sumner Regional Wastewater Treatment Facility
13114 – 63rd Street E, Sumner WA 98390
253-299-5760

Print the Sumner Grow Flyer (pdf)

Recommended Uses
The material is soil-like in appearance. Keep material dry until ready for use.

Consider mixing your own potting soil and adding about 8-10% Sumner Grow to the mix. This gives your plants a slow-release nitrogen feed with valuable trace elements over a period of time, getting new transplants off to a healthier start.

  • Established Lawns: Use as a top dressing at about 25 pounds per 1,000 square feet.
  • New Lawns & Sod Applications: Use a little less–about 20 lbs per 1,000 square feet.
  • Shrubs: Use about 1 cup for small bushes, two for medium sized, three for large.
  • Potted Plants: Use a handful for each medium sized plant.To Restore Old, Worked Out Gardens: Work about 10-20 pounds per 100 square feet into the top 6 inches of soil. This replaces chemical fertilizers.
  • Trees: Use 2 pounds per inch of diameter spread evenly to the drip line (the tree’s shade at noon).

Proper use of Sumner Grow will give the best desired plant growth as well as protecting public health and the environment.  Learn more about Sumner’s stormwater program.