Start with Dormant Crowns
Plant in Rows
Fresh asparagus may be expensive at the grocery store, but it's pretty easy to grow at home. And because it's one of the few perennial vegetables, you can plant asparagus once and enjoy the delicious harvest every spring for 20 years or more.
Although asparagus can be started from seed, the plants take 3 years to mature, so it is usually grown from 1-year-old crowns. You can start planting as soon as the soil is workable in late winter or early spring. Figure on planting 30-50 crowns for a family of 2-4 persons.
Place crowns 18 inches apart in a 6-inch-deep trench and cover them with 2 inches of well-cultivated soil. To grow bigger stalks, mix in plenty of organic matter from a high-quality source, such as Miracle-Gro® Garden Soil for Flowers & Vegetables. As you see the crowns sprout a few inches, add more soil until the trench is filled.
Asparagus is a heavy feeder. Encourage thick spears by feeding once in the spring before growth starts and again after the harvest with a high-nitrogen plant food such as Osmocote® Vegetable & Bedding Smart-Release® Plant Food.
Cut spears at or near ground level when they are at least 5 inches tall and 1/2 inch in diameter and have closed tips. Harvest for just 2 weeks in the first harvest season (the plants' third year), then 4 weeks the next year and 6 weeks in years after that.