Oakleaf

Lettuce

Zone 6b Save Garden

🌱 50d to harvest Rosette

Tender leaves unfurl like ruffled lace, with a crisp snap and a sweet, green-forward flavor that feels cool and clean from the fi…

Crop Dates

Milestone	Date
Start Indoors	Mar 28th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	Jun 14th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	50
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)	35
Harden Off (days)	5

Recommended Companions

Nantes Coreless Carrot

Frequently Asked Questions

What’s a common problem for Lactuca sativa (oakleaf lettuce), and how do I treat it?

A frequent issue is powdery mildew, which shows up as a white, dusty coating on leaves and spreads in cool, humid conditions. Improve airflow by spacing plants and watering at soil level (not on leaves), then remove heavily infected leaves. If it keeps recurring, spray an approved fungicide labeled for leafy greens and follow the label reapplication interval.

How often should I water oakleaf lettuce during the main growing phase?

Keep the top 1–2 inches of soil evenly moist from emergence through harvest; lettuce roots dry out quickly and stress can trigger bitterness and bolting. In warm part-sun conditions, this usually means watering about 2–4 times per week, with deeper soakings so moisture reaches the root zone. Water in the morning and avoid waterlogged soil, since overly wet beds can encourage fungal leaf diseases.

How can I tell when oakleaf lettuce (Lactuca sativa) is ready to harvest?

Harvest when heads/rosettes are well-formed for their size—typically around 50 days from sowing—and leaves are large enough for your preference without being overly mature. For leaf harvest, pick the outer leaves when they reach usable size and leave the center growing point intact. For whole-plant harvest, cut at the base when the plant has reached full, crisp leaf mass and before it starts to bolt (stems stretching upward).

Tender leaves unfurl like ruffled lace, with a crisp snap and a sweet, green-forward flavor that feels cool and clean from the first harvest. Oakleaf forms loose rosettes of oak-shaped foliage—deeply lobed, richly textured, and wonderfully steady in the garden—ideal for fresh, vibrant salads and quick tosses, as well as blending into leafy mixes and silky sauces.

Sowing Tips

Transplant Conditions

Wait until soil reaches 40°F and nights stay above 35°F before moving outdoors. Harden off for 5 days first.

Expert Note

Start indoors for a steadier early crop, but transplant only when nights are reliably mild to avoid stunting, then keep soil evenly moist to support slow-bolting growth.