Butterhead Lettuce

A tender, silky-leaved lettuce forming loose, rosette-shaped heads with a buttery texture and mild, sweet flavor. Butterhead varieties like Boston and Bibb are prized for their delicate leaves that are perfect for wraps and elegant salads. These lettuces do best in cool weather and need protection from intense afternoon sun. Harvest the whole head by cutting at the base, or pick outer leaves gradually for an extended harvest.

Surface-sow seeds on moist seed-starting mix; do not cover as light aids germination. Seeds germinate in 4-8 days at 55-65°F. High temperatures (above 80°F) cause seed dormancy; refrigerate seeds 24 hours before warm-weather sowing. Thin or transplant when seedlings have 2-3 true leaves. For direct sowing, scatter seeds lightly and thin gradually to 8-10 inches apart. Succession sow every 2 weeks. Seeds remain viable for 3-5 years stored in cool, dry conditions.

The Season Plate

Your Butterhead Lettuce Year

Composed for Zone 7 · typical seasons · frost passes Apr 2, returns Nov 1

Sow Butterhead Lettuce Mar – May, Aug – Sep, pick May – Jul, Oct – Nov. Set your climate below and every date on this plate re-times itself.

Sowing window

Mar – May, Aug – Sep

re-timed to your frost dates

Plant out

after Apr 2

once frost risk has passed

First picking

around May 4

≈ 50 days from sowing · 150-250g per plant

Composed for —ColdTemperateMildWarmUse my locationUsed once to set your season · only the zone is kept

Week-by-week Butterhead Lettuce reminders watering, feeding and pruning, timed to your dates

In the app

Frost alerts for your garden a warning before a cold night costs you the crop

In the app

Succession sowing dates so the picking never gaps mid-season

In the app

Subscribe free

Get my Butterhead Lettuce datesSaved to your free garden plan · no card needed

Start butterhead lettuce seeds indoors 4-6 weeks before last frost, sowing on the surface of moist seed-starting mix. Seeds need light to germinate and sprout in 4-8 days at 55-65°F. Transplant seedlings 8-10 inches apart in rows 12 inches apart when they have 3-4 true leaves. Direct sowing works well in cool weather; scatter seeds and thin gradually.

Butterhead lettuce is sensitive to heat and performs best in temperatures between 50-65°F. Provide afternoon shade in warmer weather using shade cloth or taller companion plants. Water consistently at soil level to prevent splashing soil onto the delicate leaves. Mulch with straw or compost to maintain cool, moist soil conditions. Feed lightly with a balanced liquid fertilizer every 2-3 weeks.

Butterhead forms its characteristic loose rosette heads over 50-60 days. The outer leaves can be harvested earlier while inner leaves continue to develop. Succession plant every 2 weeks for continuous supply. For fall growing, start seeds in late summer when temperatures begin to cool. In mild climates (zones 8-11), butterhead lettuce overwinters with minimal frost protection.

Plant butterhead lettuce with carrots, radishes, and strawberries for complementary growing habits. Taller plants like tomatoes, peppers, and trellised peas provide valuable afternoon shade. Quick-maturing radishes make excellent interplanting companions. Herbs like chives and basil deter aphids from nearby lettuce. Avoid celery as a companion. Butterhead works well as an understory crop in mixed beds, taking advantage of shade from taller vegetables.

The Society Table

Carrot belongs beside it. Celery doesn't.

Old growers' knowledge, checked against Butterhead Lettuce's real companion table below — test any plant you're growing.

Grows well in the company of · 3

CarrotRadishStrawberry

Keep apart · 1

Celery

Plant Butterhead Lettuce with good neighboursThe planner flags conflicts before they're in the ground

Related growing guides

Vegetables

Carrot

A good companion for Butterhead Lettuce

Vegetables

Radish

A good companion for Butterhead Lettuce

Fruits

Strawberry

A good companion for Butterhead Lettuce

Vegetables

Lettuce

View growing guide

Butterhead lettuce prefers rich, well-drained soil with a pH of 6.0-7.0. Incorporate compost before planting for both fertility and moisture retention. Apply a balanced liquid fertilizer every 2-3 weeks at half strength. The delicate root system benefits from consistent surface moisture rather than deep watering. Avoid heavy nitrogen that produces rank growth prone to disease. Organic mulch helps maintain ideal cool, moist growing conditions.

Ideal Temperature

Hardiness Zone Compatibility

Harvest butterhead lettuce when the rosette head feels full and leaves are tender, typically 50-60 days from sowing. Cut the entire head at the base for a clean harvest, or pick outer leaves individually starting at 30 days for a longer harvest period. The center leaves are the most prized for their buttery texture. Harvest in the morning for maximum crispness. If the center begins to elongate, harvest immediately as bolting makes leaves bitter. Handle gently as butterhead bruises easily.

Storage & Preservation

Store whole butterhead heads unwashed in a plastic bag in the refrigerator for 5-7 days. The delicate leaves are more perishable than romaine or iceberg. Do not wash until ready to use, as moisture accelerates wilting. Wrap heads loosely in damp paper towels for extended freshness. Butterhead lettuce does not freeze or dry well. Revive slightly wilted leaves by soaking in cold water for 10-15 minutes. Best consumed within a few days of harvest for optimal texture.

Aphids

Pest

Small green or pink insects clustered in leaf folds and on undersides, sticky residue on leaves.

Prevention Encourage beneficial insects, use reflective mulch, avoid excessive nitrogen fertilization.

Fix: Rinse with strong water spray, apply insecticidal soap, release ladybugs.

Gray Mold (Botrytis)

Disease

Fuzzy gray mold on lower leaves and stem base, especially in cool, humid conditions.

Prevention Space plants for air circulation, water at soil level, remove dead leaves promptly.

Fix: Remove affected leaves and plants, improve air flow, reduce watering frequency.

Slugs

Pest

Irregular holes in tender leaves, slimy trails visible on plants and soil, night feeding damage.

Prevention Water in morning, keep area clean of debris, use copper tape around beds.

Fix: Set beer traps, apply iron phosphate bait, hand-pick slugs in evening.

Troubleshooting Common Problems

Bolting is triggered by temperatures above 75°F or long days. Choose heat-tolerant varieties like Buttercrunch for warm-season planting. Tip burn on inner leaves results from calcium deficiency or erratic watering; maintain consistent moisture. Bitter flavor develops from heat stress. The soft leaves are particularly attractive to slugs; manage with barriers and traps. Brown edges indicate sunburn from excessive direct sun; provide shade. Soft rot develops in overly wet conditions.

Growing Tips

1. Succession plant every 2 weeks from early spring through late spring, then again from late summer through fall. This single technique transforms butterhead from a one-time harvest into a continuous supply lasting 6-8 months in most climates.
2. Light is essential for germination — never bury butterhead seeds. Scatter them on the surface of moist soil and press gently to ensure seed-to-soil contact. Covering with even 3mm of soil can reduce germination rates by 50% or more.
3. In warm weather (above 27°C / 80°F), pre-chill seeds in the refrigerator for 24-48 hours before sowing. Butterhead lettuce seeds enter thermodormancy at high temperatures and simply will not germinate without this cold treatment.
4. Provide afternoon shade in any climate where temperatures regularly exceed 21°C (70°F). Use 30-50% shade cloth, plant on the east side of taller crops, or use companion plants like trellised peas or pole beans as living shade structures.
5. Water at soil level only — never overhead. Butterhead's cupped leaves trap water in the crown, creating ideal conditions for gray mold (Botrytis) and soft rot. Drip irrigation or careful hand-watering at the base is essential.
6. Mulch with straw, shredded leaves, or compost to maintain cool, moist soil conditions. Butterhead's shallow root system (top 15 cm of soil) is highly sensitive to temperature fluctuations, and mulch buffers these swings effectively.
7. Harvest the entire head by cutting at the base rather than pulling, which disturbs neighboring plants. Alternatively, pick outer leaves from 30 days onward for a prolonged harvest — the plant will continue producing new leaves from the center for weeks.
8. For the sweetest flavor, grow butterhead in fall rather than spring. Cooling temperatures cause the plant to accumulate sugars as a natural antifreeze, producing heads that are noticeably sweeter and more tender than spring-grown lettuce.