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More than 80% of the lettuce (Lactuca sativa L.) consumed in the United States is of the crisphead type (U.S. Dept. of Agriculture, 1992). Over the last 100 years, taste and texture preferences of crisphead lettuce in the United States have undergone minor changes. Head size and weight have steadily increased, such that cultivars presently grown in this country are large (i.e., 16 to 22 cm in diameter). ‘Ice Cube’, ‘Blush’, and ‘Mini-Green’ are miniature crisphead lettuces that closely resemble standard cultivars in appearance, but attain about one-half the diameter (8 to 12 cm). Because of their size, these cultivars can be consumed by a person in one meal. The commercialization of miniature lettuce may lead to increased lettuce consumption by people who choose not to purchase lettuce of normal size for fear it cannot be consumed before spoilage. ‘Ice Cube’ and ‘Blush’ are adapted for production in the western United States, especially under the optimum growing conditions found in California and Arizona. ‘Mini-Green’ tolerates higher temperatures during heading and may hold some promise for eastern production areas and for home-garden use.

`Ice Cube', `Blush', and `Mini-Green': Miniature Crisphead Lettuce Cultivars