40-50 days maturity after transplant. Solanum melongena ’Petch Siam’. Petch Siam Eggplant Seeds. Non-GMO, warm-season, annual, heirloom. This well-known and productive Matti Gulla variety is easy to grow. Matti is an Indian village famous for this type of eggplant. The small (2 inches in diameter), round, green eggplants have a dark green stripe and are very popular in Indian, Thai, and Vietnamese cuisines. Try growing these in containers with support as you would tomatoes. Approximately 21,000 seeds per oz.