Lettuce - Heat Tolerant

62 days. Lactuca sativa. Open Pollinated. Summer Bibb Lettuce. The plant produces good yields of butterhead lettuce. It is a popular heirloom lettuce variety prized for its sweet, mild, buttery flavor, tender yet crisp texture, and resistance to bolting in warmer conditions. Very flavorful. This variety can be grown all summer. Slow bolting. Heat Tolerant. It does well in the Southern parts of the country. Suitable for greenhouse production. Excellent choice for home gardens, greenhouses, and market growers. A 1963 heirloom variety was developed by Dr. Raleigh at Cornell University in Ithaca, New York, USA. United States Department of Agriculture, PI 536807. An heirloom variety from the USA.

65 days. Lactuca sativa. Open Pollinated. All The Year Round Lettuce. The plant produces good yields of medium green butterhead lettuce. It is a classic, reliable heirloom butterhead lettuce variety prized for its versatility, reliability, and ability to be grown across much of the growing season. It is known for producing medium-sized heads with soft, sweet, buttery-textured green leaves and crisp, blanched centers. It is famous for being slow to bolt and adaptable to various growing conditions from spring through fall. This variety can be sown in most locations from March through August for a nearly year-round harvest. Suitable for spring and fall planting. Slow to bolt. It does well in hot and cold weather. The very reliable plant does well even in dry weather. Cold Tolerant. Heat Tolerant. Drought Tolerant. Also known as All Year Round Lettuce. Suitable for greenhouse production. An excellent choice for home gardens, greenhouses, market growers, and open field production. United States Department of Agriculture, PI 536694. A pre-1870s heirloom variety from the USA.

45 days. Lactuca sativa. Open Pollinated. Black Seeded Simpson Lettuce Seeds. This early-maturing plant produces excellent yields of leaf lettuce. It is a popular heirloom loose-leaf lettuce variety and is known for its fast growth, tenderness, and adaptability. Black-seeded Simpson lettuce seeds produce a classic, fast-growing heirloom leaf lettuce known for crinkled, tender, light green leaves and a sweet, mild flavor. Very flavorful and of superb quality. This is one of the most popular leaf lettuce varieties on the market. Its frilled, crumpled leaves are crisp, tender, and very flavorful. The crisp leaves are perfect for salads and garnishes. You can grow it as a baby lettuce in 28 days. It grows best in cool weather. It withstands heat, drought, and light frost. Slow to bolt. Cold Tolerant. Heat Tolerant. Drought Tolerant. The name comes from its dark, nearly black seeds and association with the Simpson lineage of curly/loose-leaf types. It was popularized in the U.S. by Peter Henderson & Co. of New York around 1875–1879. Excellent choice for home gardens and market growers. United States Department of Agriculture, PI 536700. An 1850 heirloom variety from the USA. Disease Resistant: DM, LD, TB.

65 days. Lactuca sativa. Open Pollinated. Bronze Mignonette Lettuce. The plant produces excellent yields of flavorful butterhead lettuce with frilled leaves. The bronze green leaves are delicious. Excellent for salads and garnishes. This small variety is ideal for baby lettuce. Slow to bolt. Heat Tolerant. Drought Tolerant. Excellent choice for home gardens and specialty market growers. United States Department of Agriculture, PI 615072. A 1898 heirloom variety from the USA.

65 days. Lactuca sativa. Open Pollinated. Buttercrunch Lettuce Seeds. The plant produces high yields of dark green butterhead lettuce. It has a mild buttery flavor with no bitterness. The broad green leaves are delicious, but the best part is the heart of loosely folded leaves and thick, crisp, tender ribs. Great for salads and garnishes. Heat Tolerant. Slow to bolt. Suitable for greenhouse production. An excellent choice for home gardens, greenhouses, and market growers. Developed by George Raleigh of Cornell University, Ithaca, New York, USA. United States Department of Agriculture, PI 536804. A variety from the USA.

65 days. Lactuca sativa. Open Pollinated. Cimmaron Lettuce. The plant produces excellent yields of beautiful red romaine lettuce. Leaves are loosely folded on heads. Perfect for salads and garnishes. One of the slowest to bolt lettuce on the market. Good for spring, summer, and fall planting as it's cold hardy and also tolerates heat. Cold Tolerant. Heat Tolerant. An 18th century heirloom variety. An excellent choice for home gardens. A variety from the USA.

55 days. Lactuca sativa. Open Pollinated. Freckles Lettuce Seeds. This early maturing plant produces excellent yields of flavorful green romaine lettuce splashed with red speckles. Perfect for Caesar salads and garnishes. Harvest in 28 days for gourmet salads. Resists bolting. Heat Tolerant. An excellent choice for home gardens and specialty market growers. An heirloom variety from the USA.

45 days. Lactuca sativa. Open Pollinated. Grand Rapids Lettuce. This early maturing plant produces high yields of large bright green leaf lettuce. Leaves are frilled, crinkled, and crisp. Perfect for sandwiches, salads, and garnishes. This is a quick growing variety. Heat Tolerant. Slow to bolt. Suitable for greenhouse production. Excellent choice for home gardens, greenhouses, market growers, open field production, and hydroponic gardening. United States Department of Agriculture, PI 536719. A 1898 heirloom variety from the USA. Disease Resistant: TB, V.

75 days. Lactuca sativa. Open Pollinated. Great Lakes 118 Lettuce. The plant produces high yields of large crisphead lettuce. This very early strain of the Great Lakes Lettuce is used mainly in California for harvest during warmer months. The standard for commercial growers for decades. Excellent flavor. The crisp leaves are perfect for sandwiches, salads, and garnish. Very well adapted to hot conditions. Thrives in adverse weather conditions. Heat Tolerant. Excellent choice for home gardens, market growers, and open field production. A 1948 heirloom variety developed by Associated Seed Growers, New Haven, Connecticut, USA. United States Department of Agriculture, PI 536810. A variety from the USA. Disease Resistant: TB.

83 days. Lactuca sativa. Open Pollinated. Great Lakes Mesa 659 Lettuce. The plant produces high yields of large crisphead lettuce. It is stronger, larger, and more uniform than other varieties of Great Lakes. One of the most widely planted of all the Great Lake types by commercial growers. This is the type you find in your grocery stores. Very flavorful. The crisp leaves are perfect for sandwiches, salads, and garnish. Perfect for fall planting as it is resistant to cold damage. Does well in the South and Southwest regions. Resistant to sunburn. Very slow to bolt. Cold Tolerant. Heat Tolerant. An excellent choice for home gardens, market growers, and open-field production. United States Department of Agriculture, PI 536733. A variety from the USA. Disease Resistant: TB, TMV.

45 days. Lactuca sativa. Open Pollinated. Green Ice Lettuce. This early maturing plant produces high yields of glossy, dark green, loose leaf lettuce. Leaves are frilled, crinkled, and crisp. You can have multiple harvests with this variety. It is among the earliest, yet lasts well into summer, thanks to superior heat tolerance. Heat Tolerant. Slow to bolt. Perfect for salads and garnishes. Excellent choice for home gardens. An heirloom developed by Burpee in the 1960s. United States Department of Agriculture, PI 536848. A variety from the USA.

58 days. Lactuca sativa. Open Pollinated. Kagraner Sommer Lettuce. The plant produces good yields of butterhead lettuce. It has a mild buttery flavor. This is a very hardy plant that is slow to bolt in the summer heat. Does well in hot weather. Heat Tolerant. Also known as Butter Bow Head Lettuce. Excellent choice for home gardens. United States Department of Agriculture, PI 634680. A variety from Germany.

50 days. Lactuca sativa. Open Pollinated. Little Gem Lettuce. This early maturing plant produces good yields of small romaine lettuce. This refined variety has a superb flavor and can be served whole. The heads are tightly wrapped and are sweet and crunchy. Heat Tolerant. Perfect for containers, patios, and small gardens. An excellent choice for home gardens and specialty market growers. United States Department of Agriculture, PI 617959. An 1880 heirloom variety from France.

48 days. Lactuca sativa. Open Pollinated. Merveille des Quatre Saisons Lettuce. This early-maturing plant produces good yields of flavorful red-tinted butterhead lettuce. It is a popular heirloom lettuce variety prized for its beauty, flavor, and adaptability. The outside leaves are magenta, and the interior leaves are apple green. It is self-blanching lettuce. This variety of lettuce forms heads quickly. Very flavorful. Great for salads and garnishes. It can be grown nearly year-round, as it remains firm even in hot weather. It can withstand summer heat and produce in cool spring and fall weather. Bolt Tolerant. Cold Tolerant. Heat Tolerant. Also known as Marvel of Four Seasons Lettuce. An excellent choice for home gardens and specialty market growers. United States Department of Agriculture, PI 634685. An 1885 heirloom variety from France.

1963 All-America Selections Winner! 60 days. Lactuca sativa. Open Pollinated. New York 12 Lettuce. The plant produces good yields of large crisphead lettuce. The crisp leaves are delicious and perfect for sandwiches, salads, and garnish. A heat-resistant variety that is excellent for fall crops in the South. It is tolerant to stress, poor soils, and bolting in the summer heat. Heat Tolerant. It was introduced in the 1960s by Cornell University. Good shipper variety for commercial growers. Excellent choice for home gardens, market growers, and open field production. United States Department of Agriculture, PI 190235. An heirloom variety from the USA. Disease Resistant: TB.

45 days. Lactuca sativa. Open Pollinated. Oak Leaf Lettuce. This early maturing plant produces very flavorful, medium dark lettuce shaped like oak leaves. As outer leaves are picked, inner leaves keep producing. Perfect for salads and garnishes. This variety stands well without bolting. Long-standing, never bitter, and does amazingly well in the summer heat. It is fast-growing and regrows well after cuttings as long as it is planted in fertile soil. Non-heading plants. The easiest type of lettuce to grow. Excellent choice for home gardens. A 1771 heirloom has been growing since prior to the Revolutionary War. United States Department of Agriculture, PI 536751. A variety from France.

53 days. Lactuca sativa. Open Pollinated. Ruby Red Lettuce. This early maturing plant produces good yields of red leaf lettuce. This is a very heat tolerant variety. Slow to bolt. Color does not fade in hot weather. Perfect for salads and garnishes. Adds color to salads. Heat Tolerant. Always a great seller at Farmer’s Markets. Excellent choice for home gardens. United States Department of Agriculture, PI 536761. A 1858 heirloom from the USA.

44 days. Lactuca sativa. Open Pollinated. Salad Bowl Green Lettuce. This early maturing plant produces excellent yields of flavorful green leaf lettuce. As outer leaves are picked, inner leaves keep producing. Ideal for hot weather as it is slow to bolt. Perfect for salads and garnishes. Suitable for containers. Excellent choice for home gardens. United States Department of Agriculture, PI 536762. An heirloom variety from the USA.

75 days. Lactuca sativa. Open Pollinated. Salinas Lettuce. The plant produces high yields of crisphead lettuce. It produces large, dense, round heads with crisp, pale-green leaves and a mild, sweet flavor. A good standard shipper variety for commercial growers. Resistant to bolting. It was developed in the 1970s in California's Salinas Valley. Salinas is known as the Lettuce Capital of the World. Cold Tolerant. Heat Tolerant. An excellent choice for home gardens, market growers, and open field production. United States Department of Agriculture, PI 536851, A variety from the USA. Disease Resistant: LMV, TB.

48 days. Lactuca sativa. Open Pollinated. Slobolt Lettuce. This early maturing plant produces excellent yields of very flavorful lettuce. The outer leaves may be picked off as they grow. It has a delightful crispness and mild flavor and is never bitter. Grows even in hot weather. Heat Tolerant. Slow to bolt. Suitable for greenhouse production and outdoor planting. Excellent choice for home gardens, greenhouses, market growers, and open field production. United States Department of Agriculture, PI 536764. A 1946 heirloom variety from the USA.

65 days. Lactuca sativa. Open Pollinated. Tom Thumb Lettuce. This small compact plant produces excellent yields of small butterhead lettuce. It is a popular lettuce variety prized for its buttery soft texture, mild-to-sweet flavor, and creamy yellow centers with medium-to-dark green, slightly crumpled outer leaves. One head typically makes a perfect single-serving salad. The lettuce head is a perfect size, 3 to 4" across, for a crispy and tasty salad. It is perfect for salads and garnishes. It is excellent summer lettuce as it tolerates high temperatures at maturity and resists bolting better than larger varieties. Heat Tolerant. Perfect for container gardening, hanging baskets, or small gardens with very limited space. Suitable for greenhouses. An excellent choice for home gardens, greenhouses, and specialty market growers. United States Department of Agriculture, PI 536767. An 1850 heirloom from England. 

65 days. Lactuca sativa. Open Pollinated. Webb's Wonderful Lettuce. The plant produces good yields of very large crisphead lettuce. It has an exceptional buttery and mild flavor like butterhead lettuce. The crisp leaves are perfect for sandwiches, salads, and garnishes. Does well in hot weather, dry or wet conditions. Slow to bolt. Suitable for the Southern region of the country. Excellent choice for home gardens and market growers. United States Department of Agriculture, PI 234624. An 1890 heirloom variety from England. Disease Resistant: V.

72 days. Lactuca sativa. Open Pollinated. White Boston Lettuce. The plant produces good yields of butterhead lettuce. Very flavorful with a buttery taste. This is an improved version of the Big Boston. It grows higher off the ground, so no bottom rot. Does well in hot weather. Excellent choice for home gardens and market growers. United States Department of Agriculture, PI 536771. A 1930s heirloom variety from the USA.

65 days. Lactuca sativa. Open Pollinated. Winter Density Lettuce. The plant produces heavy yields of dark green romaine lettuce. Leaves are tightly folded and have a sweet flavor. It is a cross between a butterhead and romaine. Heads sit high on the stem for good airflow. Heat Tolerant. Frost Tolerant. Slow to bolt. You can grow year-round with winter protection in cold climates. Also known as Craquerelle du Midi Lettuce and Winter Gem Lettuce. An excellent choice for home gardens. United States Department of Agriculture, PI 536774. A 19th-century heirloom from France.