GreenWorx Hydroseeding Share: Landscaping GreenWorx Hydroseeding Visit Website Request Info 4630 Cumberland Loop Bismarck, ND 58503 (218) 289-5068 Facebook About Map About We are a grass seeding and erosion control company. We specialize in hydroseeding, overseeding, drill seeding and various erosion control needs. We service both commerical and residential needs. What's Nearby? Distance: 5 10 15 20 25 50 mi.