Jersey Supreme 3 Year Roots For Sale Buy the Best. Where to buy the best Jersey Supreme variety online. Buy many Asparagus roots crowns as they will provide you with 15-20 year of great harvests. Jersey Supreme will solve the problem of satisfying everyone with their favorite spear size. Plant many Jersey Supreme roots as the spears are not thick or thin but average size that will bring happiness to all. Where to buy in Tx, CA, NY, MI buy online. For the best harvest feed your Asparagus every month Asparagus Tea. The Asparagus will reward you with many sweet tender spears Add companions for your Asparagus. Plant many Swiss Chard they come in green, yellow, red. The Swiss (delicious) will provide the color and the Asparagus will provide them with shade. The like the same soil and watering.