White Boston

Family: Asteraceae Leafy Green

Crisp at first touch, White Boston forms a lush, pale-green butterhead that feels velvety and cool against the palate—its tender leaves fold into a softly layered rosette.

Mild, sweet flavor with a buttery texture makes it a standout for fresh salads and elegant sandwich-style gatherings, while its gentle leaves also shine in light, quick tosses and refreshing pickled accents. With about 55 days to maturity, it’s a satisfying cool-season choice for gardeners who love a classic, garden-fresh head that stays pleasantly tender.

Light: Part SunMaturity: 55 DaysHabit: Rosette

Crop Dates : 9b

Milestone	Date
Start Indoors	Jan 12th
Last Frost	Feb 9th
Transplant / Sow Outdoors	Feb 2nd
Harvest Begins	Mar 29th
Harvest Ends	Dec 9th

Crop Details

Trait	Value
Days to Maturity	55
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)	32
Harden Off (days)	5

Culinary Notes

Chef's Note

White Boston’s butterhead softness and mild sweetness make it a dream for cold, clean flavors—dress it lightly and it stays elegant, not soggy. It’s also sturdy enough for stacked sandwich duty, where its gentle crunch won’t immediately go limp under weight and moisture.

Best Uses

ice-cold salad base that holds vinaigrette without turning watery
butter-slick sandwich lettuce—layer it thickly so it doesn’t collapse into bread
quick tosses with warm elements, using minimal heat to keep the leaves supple
light pickling accents where the mildness stays pleasant rather than sharp

Flavor Profile

mild, sweet lettuce flavor buttery, tender leaf texture cool, faintly grassy freshness snappy crunch when handled gently

Kitchen Pairings

lemon extra-virgin olive oil balsamic vinegar goat cheese bacon grilled chicken

Frequently Asked Questions

What pest or disease most often affects Lactuca sativa (White Boston lettuce), and how do I control it?

The most common issue is lettuce downy mildew (often shows as yellow patches on upper leaves with fuzzy gray-violet growth on the undersides). Improve airflow and avoid wetting the leaves, then remove and discard badly infected plants; you can also treat early by spraying a labeled fungicide that targets downy mildew for edible greens. If slugs show up, use an evening slug check and hand-remove or use a bait product labeled for use around vegetables to protect tender heads.

How frequently should I water White Boston lettuce during peak growth, and what soil moisture level should I maintain?

During the main head-forming phase, keep soil consistently evenly moist—aim for the top 1 inch to stay damp, not waterlogged. Water about 2–3 times per week depending on heat and your soil, and increase frequency during hot spells to prevent bitter, loose heads from forming. Mulch lightly after seedlings establish to reduce surface drying, which helps prevent stress-induced bolting.

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

Harvest when heads are firm and well-formed, typically around 55 days from sowing (or when they reach the expected size for your bed rows). Use your hand to gently press the head—if it feels tight rather than soft and airy, it’s ready. If leaves are still easily separated at the base or the plant is stretching upward, wait a few more days unless temperatures are pushing bolting.