Salsify also called Oyster Plant and Vegetable Oyster. It is grown like Parsnips and is one of the hard to grow root vegetables. Salsify need a finely cultivated soil, preferably sandy soil. Work the soil to a depth of 1 to 1 ½ feet so the soil is loose. Planting should immediately after last frost. They can not take the mid-summer climate, so plant early spring of in the fall. The deeper the soil is tilled, the longer the roots will develop. Plants are 8" to 12" tall.