Upright Leaf Growth
Produces elongated leaves that grow in an upright arrangement, forming an attractive lettuce head.
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Roman Lettuce, commonly known as Romaine or Cos Lettuce, is a popular leafy vegetable recognized for its upright growth, elongated leaves, crisp texture, and refreshing flavor. Its tender green leaves and crunchy midribs make an excellent addition to fresh salads, sandwiches, wraps, and healthy meals. Roman Lettuce is a cool-season crop that can be grown in garden beds, raised beds, and suitable containers. It is a wonderful choice for home gardeners who enjoy harvesting fresh salad greens.
Produces elongated leaves that grow in an upright arrangement, forming an attractive lettuce head.
Features crunchy midribs and tender leafy portions that add freshness and texture to everyday meals.
An excellent choice for salads, sandwiches, wraps, lettuce cups, and other fresh vegetable dishes.
Can be cultivated in garden beds, raised beds, and sufficiently deep containers with good drainage.
| Scientific Name | Lactuca sativa (Romaine Group) |
| Common Name | Roman Lettuce, Romaine Lettuce, Cos Lettuce |
| Plant Family | Asteraceae |
| Seed Type | Vegetable Seeds |
| Plant Type | Cool-season leafy vegetable |
| Growth Habit | Upright, elongated leafy growth |
| Leaf Color | Green |
| Leaf Texture | Crisp, crunchy midribs with tender leafy portions |
| Days to Germination | Approximately 7–14 days under suitable conditions |
| Days to Maturity | Approximately 65–85 days, depending on variety and growing conditions |
| Germination Temperature | Approximately 15–21°C for suitable germination conditions |
| Planting Season | Cooler growing months; timing depends on local climate |
| Sowing Depth | Approximately 0.5 cm (¼ inch) |
| Plant Spacing | Approximately 20–30 cm between plants |
| Sunlight | Full sun in cool weather; partial shade in warmer conditions |
| Soil Requirements | Fertile, loose, moisture-retentive, well-drained soil |
| Soil pH | Approximately 6.0–6.8 |
| Watering | Regular watering to maintain consistent soil moisture |
| Harvesting | Harvest outer leaves individually or cut mature heads |
Enjoy the freshness of homegrown Roman Lettuce with its elongated green leaves and satisfying crunchy texture. Perfect for fresh salads, sandwiches, wraps, and everyday meals, this popular leafy vegetable is a rewarding addition to home gardens and container growing spaces. Provide suitable temperatures, fertile soil, and consistent watering to encourage healthy leafy growth and delicious harvests.
Discover helpful answers about Roman Lettuce Seeds, including growing methods, harvesting, and cultivation.
To grow Romaine lettuce, sow seeds approximately 0.5 cm deep in a moist, well-drained seed-starting mix. Keep the growing medium consistently moist and provide moderate temperatures for germination. Transplant young seedlings into fertile soil with sufficient spacing once they develop several true leaves. Regular watering and suitable sunlight encourage healthy upright growth and crisp leaves.
High temperatures, dry soil, and heat stress can encourage Romaine lettuce to bolt, which means the plant produces a flower stalk earlier than expected. Bolting can also make the leaves taste bitter. To reduce this problem, grow lettuce during cooler weather, maintain consistent soil moisture, and provide partial afternoon shade when temperatures become warm.
Romaine lettuce can be harvested when its upright leaves have developed a good size and the center begins forming a firm head. You can pick mature outer leaves individually for repeated harvests or cut the entire head when ready. Harvesting before the plant bolts helps maintain better leaf quality, tenderness, and flavor.