Choose a planting site on the northern or western side of a garden so mature asparagus plants won’t shade other vegetables in summer. Start with well-draining soil that’s about 8 inches below the rim of your bed.
That means your raised bed needs to be at least 12 inches high to give the roots room to grow, though I recommend building a bed up to 24 inches high for easy harvesting.
That means your raised bed needs to be at least 12 inches high to give the roots room to grow, though I recommend building a bed up to 24 inches high for easy harvesting.
Mix in an organic all-purpose fertilizer, following the package directions. The best option, if you can find it, is an organic fertilizer that has higher levels of phosphorus and potassium. (These are the P and K values in NPK.)
Most asparagus planting guides call for digging trenches and making mounds, but in a raised bed, you can skip all that work! Place the crowns 12 inches apart and spread the roots out around them.