Chioggia Beet Seeds $2.75 (Latuca sativa) Small rosettes of light green leaves measure only 7" in diameter and form loose, tender heads. Grown by Thomas Jefferson at Monticello. According to Heirloom Vegetable Gardening by SSE member William Woys Weaver, tennis ball lettuces were often pickled in salt brine during the 17th and 18th centuries. Black-seeded. Butterhead, 50 days.