Lomar

Lettuce

70d to harvest

Cool, crisp hearts with a distinctly clean crunch—Lomar crisphead lettuce forms a tight, well-filled head that feels satisfyingly dense in the hand. The leaves are tender yet sturdy, with a fresh, mild sweetness and a beautifully pale green interior that holds its texture through the season. Grow Lomar for impressive garden-to-table presence, ideal for refreshing salads and elegant, chilled platters where crispness is the star.

Crop Dates

Milestone	Date
Start Indoors	Mar 28th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	Jul 4th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	70
Sun Requirements	Full Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	40
Min Soil Temp (°F)	40
Min Night Temp (°F)	35
Harden Off (days)	6

Frequently Asked Questions

What’s the most common lettuce (Lactuca sativa) disease/pest issue I should watch for, and what should I do?

In Lactuca sativa, slugs and snails are common and can quickly chew leaves, especially in cool, damp weather. Use a physical barrier (copper tape around raised beds or collars on plants), remove hiding spots like boards, and hand-pick at dusk or after watering. For disease, keep plants spaced for airflow to reduce downy mildew risk, and avoid wetting the foliage when watering.

How often should I water Lactuca sativa during the main growing phase?

During the 6–8 weeks before harvest, keep the soil consistently moist but not waterlogged—aim for light, even moisture with no drying to dust. In full sun, water about 1–2 times per week depending on rainfall, increasing to more frequent watering during warm spells. A good check is to water when the top 1 inch of soil starts to dry, then soak thoroughly so moisture reaches the root zone.

How can I tell when Lactuca sativa is ready to harvest?

Harvest when heads (if growing as a head lettuce type) or outer leaves are full-size and firm, typically around 70 days from sowing for your stated maturity. For leaf lettuce, pick outer leaves once they’re large enough to eat and keep the center growing. Use the finger-firmness test: leaves should feel crisp and not limp, and you should harvest before plants bolt (send up a flower stalk), which makes leaves bitter.