Asparagus is a home garden favorite. Asparagus can be grown from seed but it is easier and faster to transplant roots into the garden. Plant in early spring for a small harvest in late spring. Asparagus is a perennial and will come back for years to come with larger harvest each year. Underground roots continue to grow each year. Root systems can get large and take over, sometimes it is best to plant in a contained area. Mary Washington is a popular heirloom variety.