Raphanus sativus (28 days) Was also know as "Icicle" or "Pearl Forcing" radish. Long radishes were once all the rage. Why have a small ball type radish when you could grow three times the mass in the same surface area? It wasn't until the late 1930s and early 1940s that ball or globe radishes became popular. Perfect for the home gardener and makes a great display for market growers. Approx. 2,675 Seeds per ounce.