Seed standards

Standards for Each Class Factor Foundation Registered Certified Pure seed (minimum) 99.0 percent 99.0 percent 99.0 percent Total weed seeds (maximum) 2 per pound 5 per pound 10 per pound Other varieties * 1 per 2 pounds 1 per pound 3 per pound Other crop seeds (maximum) 1 per 2 pounds 1 per pound 3 per pound Inert matter (maximum)** 1.0 percent 1.0 percent 1.0 percent Prohibited weed seeds *** none none none Objectionable weed seeds (maximum) **** 1 per 2 pounds 1 per 2 pounds 2 per pound Germination 85.0 percent 85.0 percent 85.0 percent *Other varieties shall not include variants characteristic of the variety. **Foreign matter other than broken seed may not exceed 0.2 percent. ***Including the seeds of quackgrass. ****Objectionable weed seeds shall include the following: dodder, wild oats, hedge bindweed (wild morning glory), giant ragweed (kinghead), falseflax, and dragonhead.