(30 days – baby; 50 days – mature. Cichorium endivia) An heirloom triple-cut curly endive from France, where Dominique Guillet braved official persecution to save traditional varieties from extinction. This classic French Frisée type endive forms a heart of finely cut, frilly leaves that are mildly bitter, and deliciously crispy in gourmet salad mixes. Grown like lettuce but grows more slowly and is more frost-hardy. Tie the heads closed one week before harvest to blanch the center to a creamy white color.