Lactuca sativa 'Buttercrunch'
Buttercrunch Lettuce
Cultivar developed in the US; AAS 1963; the species L. sativa is domesticated from L. serriola, native to the Mediterranean and western AsiaOverview
Lactuca sativa 'Buttercrunch' is Buttercrunch lettuce, a compact cool-season annual forming a loose rosette head 6-8 inches (15-20 cm) tall and wide. Thick buttery-textured medium green outer leaves transition to pale yellow-green inner leaves. A butterhead (bibb) type with a mild sweet flavor. In the daisy family (Asteraceae). The 1963 All-America Selections (AAS) winner — one of the most widely grown butterhead cultivars. Cool-season crop: bolts (sends up a bitter flower stalk) when temperatures exceed 75°F (24°C) for extended periods. Sow in early spring (2-4 weeks before last frost) and again in late summer for a fall harvest. Tolerates light frost to 28°F (-2°C). Harvest the entire head at 55-65 days, or use cut-and-come-again on outer leaves starting at 30-35 days. The genus name Lactuca (Latin: milk) references the milky latex sap from cut stems. Slugs, aphids, and rabbits are the primary pests. Direct-sow or start indoors 4 weeks early. Not deer-resistant. Non-toxic (edible crop). Full sun to partial shade. Annual. Growth rate is fast.
Native Range
Cultivar developed in the US (AAS 1963). The species L. sativa is domesticated from L. serriola, native to the Mediterranean and western Asia.Suggested Uses
Grown in vegetable gardens, raised beds, and containers of at least 1 gallon (4 L). Cool-season crop — spring and fall harvests. AAS 1963. Cut-and-come-again or full head harvest. Not deer-resistant. Non-toxic. Annual.How to Identify
Appearance
Size & Dimensions
Height6" - 8"
Width/Spread6" - 8"
Reaches mature size in approximately 1 years
Bloom Information
The plant bolts (flowers) in sustained heat above 75 degrees F (24 degrees C) — small yellow composite flowers on a 18-24 inch (45-60 cm) stalk. Bolting makes the leaves bitter. Flowering is undesirable in a leaf crop.Detailed Descriptions
Flower Description
Small yellow composite flowers on a bolting stalk 18-24 inches (45-60 cm) — the plant bolts (flowers) in heat, making the leaves bitterFoliage Description
Medium green outer leaves transitioning to pale yellow-green inner leaves; smooth, thick, buttery textureGrowing Conditions
Sun Requirements
Requires 4-8 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight
Care & Maintenance
Care Guide
Full sun to partial shade. Moist rich soil pH 6.0-7.0. Cool-season crop — bolts in heat above 75 degrees F (24 degrees C). Sow spring and late summer. Tolerates light frost (28 degrees F / -2 degrees C). Slugs, aphids, and rabbits. Non-toxic. Annual.Pruning
Harvest the entire head at maturity (55-65 days) or harvest outer leaves by cut-and-come-again starting at 30-35 days. Remove the bolting stalk if it appears — the leaves become bitter.Maintenance Level
lowContainer Growing
✓ Suitable for container growing
Minimum container size: 1 gallons
⚠️ Toxicity Warning
Non-toxicPlanting Guide
Planting Methods & Timing
Planting Method
both
Indoor Start
4 weeks before last frost
Direct Sow Timing
Early spring 2-4 weeks before last frost; again in late summer for fall harvest. Bolts in summer heat above 75 degrees F (24 degrees C).
Days to Maturity
55–65 days
Plant Spacing
8 inches
Companion Planting
Avoid Planting With