Description

Romaine lettuce (Lactuca sativa var. longifolia) is a popular leafy green known for its crunchy texture and robust flavor. It is characterized by its long, upright leaves and is often used in salads, sandwiches, and as a garnish. This variety of lettuce is rich in vitamins and minerals, making it a nutritious addition to the diet.

Growing Instructions for Zone 5 Canada

Growing Zones:

Romaine lettuce thrives in USDA hardiness zones 4 to 9, making it suitable for Zone 5 where the climate is ideal for growing during the cooler months.

Planting Time:

In Zone 5, romaine lettuce can be planted from early spring (around late April) until mid-summer (usually by early July) for a continuous harvest.

Sun Requirements:

Romaine lettuce prefers full sun to partial shade. Aim for at least 6-8 hours of sunlight per day for optimal growth.

Soil Preparation/Fertilizing:

Prepare well-draining soil enriched with organic matter such as compost. A balanced fertilizer with a ratio of 10-10-10 is recommended to promote healthy growth.

Spacing:

Space the seeds or seedlings about 12 to 18 inches apart to allow for full leaf development and airflow.

Watering:

Keep the soil consistently moist but not waterlogged. Water regularly, especially during dry spells, to ensure the lettuce remains crisp and tender.

Days to Harvest:

Romaine lettuce typically matures in about 70 to 75 days from seed.

Harvest:

Harvest romaine lettuce when the leaves are firm and crisp, and the heads feel solid. Cut the heads at the base or pick the outer leaves as needed for a continuous harvest.