Lettuce Plant Care

Lettuce (Lactuca sativa) belongs to the Asteraceae family within the Lactuca genus. Lettuce is native to Mediterranean region, Europe, Middle East. Lettuce is also known as Garden Lettuce, Common Lettuce, Lactuca capitata.

Lettuce displays a compact rosette growth habit, reaching up to 1 ft tall with a spread of approximately 1 ft. Lettuce produces small yellow flowers in clusters.

Leaf size: approximately 6 inches.

Water a young or newly planted Lettuce every 2–4 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Lettuce thrives in full sun to partial shade.

Lactuca sativa tolerates temperatures of 45–75°F. Lettuce prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, fertile loam with added compost. Good drainage is essential for Lettuce to prevent waterlogging, which leads to root rot and fungal issues.

Feed Lettuce every month during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

The PlantoScan app can remind you when to water and when to fertilize each plant.

Choose a spot with full sun to partial shade and well-draining, fertile loam with added compost. Avoid low spots where water collects after rain.

Lettuce is suited to USDA Zone 2a – 12b.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

Lettuce can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the plant spacing calculator.

Prune Lettuce while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.

Lettuce is hardy down to USDA zone 2a, so once established it can stay outdoors through winter in that zone and warmer ones.

Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.

Young and container-grown shrubs need extra protection: roots in a pot freeze much more easily than roots in the ground.

Lettuce can be propagated through seeds. Similar propagation techniques also apply to alpine lettuce plant care, which shares the same genus.

See all plants toxic to cats and plants toxic to dogs.

Lettuce is susceptible to aphids, slugs, snails. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

Lettuce grows outdoors in USDA Zone 2a – 12b. It survives winters down to planting zone 2a. Lettuce is native to Mediterranean region, Europe, Middle East.