Romulus

Lettuce

70d to harvest

Romulus romaine brings a crisp, cool crunch to the garden with a distinctly upright, sturdy head and tender, succulent leaves that hold their bite. Expect a clean, gently sweet flavor with a fresh, buttery texture—ideal for creating satisfying salads and vibrant platters from your own harvest. With about 70 days to maturity, Romulus is a reliable choice for gardeners who want dependable romaine form and a beautifully uniform head from start to harvest.

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Apr 10th
Transplant / Sow Outdoors	Apr 3rd
Harvest Begins	Jun 12th
Harvest Ends	Oct 28th

Crop Details

Trait	Value
Days to Maturity	70
Sun Requirements	Part Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	40
Min Soil Temp (°F)	40
Min Night Temp (°F)	28
Harden Off (days)	6

Recommended Companions

D'Avignon Radish

Orient Express Cucumber

Frequently Asked Questions

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

During active leaf growth, keep soil consistently evenly moist at about the top 1–2 inches—lettuce is shallow-rooted and dries out fast. Water deeply enough to recharge that zone, typically about 1–2 times per week depending on heat and container size, then adjust so leaves don’t wilt and soil doesn’t stay soggy. If you notice bitter flavor or bolting, it’s often stress from irregular moisture.

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

Harvest at roughly 70 days when heads or leaf rosettes are firm and filled out, with outer leaves fully expanded but before flowering stalks form. For leaf lettuce types, pick outer leaves when they’re large and tender, leaving the center to continue producing. If the plant starts to feel loose/elongated or you see a central stem stretching upward, harvest immediately to avoid toughness and bitterness.