Now is the time of year you would start off your asparagus crowns. Asparagus plants are either male or female. The male plants are more productive and all male hybrids are available with their energies going into edible spears rather than berries.A raised bed is considered the best method of cultivating asparagus. It likes a well-drained, sandy soil, but can be successfully grown on heavier, even clay soils providing they have been cultivated first with plenty of humus and some grit or sand to aid drainage. Growing asparagus is a long term project as it takes at least two years to come into production but will then continue for up to twenty years repaying the initial investment many times over. Asparagus is not suited to container growing which means it needs its space.