Asparagus Jersey Knight DGS30099A (Green) 25 Seeds by David's Garden Seeds Days to Maturity: 2 years Non-GMO, easy to grow and handpacked by David's Garden Seeds in the United States An all-male variety that was bred at Rutgers University This variety is a high-yield perennial, and should provide a bountiful harvest for several years to come Germination rate: 70%