Add an additional 1 to 2 pounds per 20 feet of row after the last harvest. Water the fertilizer into the soil. Low fertility can cause fibrous spears. Varieties Martha Washington, UC 157, Jersey Giant and Mary Washington tests have shown hybrid asparagus varieties produce more than the standard varieties, but they are not widely available to home gardeners. Planting Since asparagus will be in the same place several years, it is important to select the right spot.
Asparagus plants make a good border around the edge of a garden or along a fence.
After asparagus beds are tilled, mark rows 4 to 6 feet apart. Dig a furrow 4 inches wide and 6 to 12 inches deep. Place the crowns in the furrow, cover with 2 to 3 inches of soil and firm the soil around the roots. Do not fill the entire furrow at once. Plant crowns 6 to 12 inches deep in loose soils and 4 to 6 inches in heavier soils.