All you need to know about this variety is in the name, isn't it? Although the exact origin of these lemons is unknown, Oscar Tintori writes that they were found in Medici gardens as early as the 17th century. The plant itself is hardy and very productive, producing many lemons per harvest — which stems (get it?) from spring to fall. Once harvested, they will continue to regrow until the season is over. Mediterranean Sweet lemons can also be grown in pots, writes Victoriana Nursery Gardens, which makes them a great variety to grow in the home.