Olga

Lettuce

50d to harvest

Silky, tender leaves unfurl with a cool, fresh crunch—Olga lettuce forms a lush rosette that feels almost velvet to the touch. Its flavor is delicately sweet with a bright, green snap, making it a standout for crisp salads and elegant garnishes. Grow Olga for dependable, 50-day maturity and a beautifully uniform head that stays attractive from garden to table.

Crop Dates

Growing note: In frost-free Zone 13a, grow this cool-season crop during the cooler dry season (October–February).

Milestone	Date
Start Indoors	—
Climate	Frost-Free Climate
Transplant / Sow Outdoors	Oct 1st
Harvest Begins	Nov 20th
Harvest Ends	Feb 28th

Crop Details

Trait	Value
Days to Maturity	50
Sun Requirements	Part Sun
Growth Habit	Rosette
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	45
Min Soil Temp (°F)	40
Min Night Temp (°F)	35
Harden Off (days)	6

Frequently Asked Questions

What pest or disease most commonly affects Lactuca sativa (lettuce) like ‘Olga’, and how can I control it?

Lettuce most often suffers from downy mildew (Peronospora) and powdery mildew, which show up as gray-purple fuzzy growth or pale powdery patches on leaves, especially when leaves stay wet. Remove and discard affected plants, improve airflow, and water at soil level (not onto the foliage). If problems persist, use an appropriate labeled fungicide for lettuce and mildew, applied per label directions.

During the 50-day growing period, how often should I water Lactuca sativa, and what soil moisture level should I maintain?

Keep soil consistently evenly moist for lettuce—don’t let it dry out between waterings, because Lactuca sativa quickly becomes bitter and can bolt. In active growth, aim for roughly 1–2 inches (2.5–5 cm) of water per week total, adjusting for heat and soil type, and water when the top 1 inch (2–3 cm) feels dry. Ensure good drainage so roots don’t sit in waterlogged soil.

How do I know when ‘Olga’ (Lactuca sativa) is ready to harvest?

Harvest at about 50 days from sowing when heads are firm and compact for the variety type, with outer leaves fully expanded and crisp. For best quality, pick in the morning and harvest before the center starts to loosen or stretch upward (early bolting). If you can squeeze the head and it feels tight, it’s ready; if it feels soft, wait a few days and recheck.