Careful site and bed selection is important for this tasty vegetable. The Asparagus prefers a pH of 6.0 to 7.5 and needs only 5 hours of sun per day. The soil should be rich (with humus), deep, well drained and free of weeds. It can take up to 3 years to get the bed established, after which, it should thrive for many years with minimal care. The ferns can grow 5-6 feet high with a 3 foot spread and as much as 5-6 feet deep in search for a heavy supply of nutrients. It is best to add more compost/humus mix each year to replenish the soil while it is getting established. Plant 1 year crowns in the Spring 8 inches deep. Supply 1-1.5 inches of water per week for maximum growth. Harvest spears when 6 inches high after the 2nd year.