Natural form

A whole head of oak leaf lettuce showing its deeply lobed, oak-shaped leaves.

Shows the characteristic lobed leaf shape and loose-head structure that defines this variety and distinguishes it from other lettuces.

Produce

Oak Leaf Lettuce

Tender, lobed loose-leaf lettuce with a mild, buttery flavor for salads.

Oak leaf is a loose-leaf lettuce named for its deeply lobed, oak-shaped leaves, available in green and red varieties. The leaves are tender and soft with a mild, slightly nutty, buttery flavor that suits delicate salads. Because it bruises easily it is best dressed just before serving.

Oak leaf lettuce is a loose-leaf variety (Lactuca sativa var. crispa) distinguished by its deeply lobed, oak-shaped leaves that form open rosettes rather than compact heads. The name describes a leaf silhouette shared by multiple named varieties rather than a single cultivar, encompassing a range of green, red, and bicolor types. As a cut-and-come-again crop, it is harvested by taking outer leaves while the central growing point remains intact, allowing continuous production from a single plant.

The leaves are tender and delicate with a mild, faintly sweet, buttery character. Red-pigmented varieties concentrate anthocyanins at the margins and tips, adding a gentle, clean bitterness that reads more as brightness than astringency. These pigments are sensitive to heat and acid, so red oak leaf loses color quickly when cooked or dressed too far in advance.

Oak leaf behaves best in raw applications where its subtlety can shine. The delicate leaves wilt readily under heavy dressing, so restraint is required. It is far more perishable than heading lettuces: once harvested, the window for optimal quality narrows quickly, making it a vegetable to buy in small quantities and use within two to three days of purchase.

Measured in: g
Storage: Fridge

Types & varieties

Green Oak Leaf

Bright to deep green; mildest, sweetest flavor; most common variety in markets

Red Oak Leaf

Bronze-red to deep burgundy concentrated at leaf margins and tips; similar texture with slightly more pronounced, clean bitterness

Blushed Oak Leaf

Green base with red or pink blush throughout; often sold as a mix rather than a single variety

Bolting and Seasonality

Oak leaf is a cool-season crop that bolts—sending up a flower stalk—rapidly once temperatures exceed 75–80°F. Bolting triggers a dramatic shift in flavor: leaves turn bitter and the texture becomes tough and unpalatable. This is the single greatest determinant of quality in homegrown or farm-direct oak leaf. Commercially, greenhouse production makes oak leaf available year-round in temperate climates, but flavor peaks in spring and fall harvests when cool nights develop the sweet, tender character that distinguishes it.

For best flavor, buy locally grown oak leaf in shoulder seasons when night temperatures are cool
If growing at home, plant in early spring or late summer for fall harvest; provide afternoon shade in warm climates to extend the season
Once bolting begins, harvest immediately—the window before bitterness develops is short

Common uses

Primary green in composed and mixed salads; holds light dressings without wilting rapidlyThinly torn as a bed for grilled fish, poultry, or poached eggsLayered in sandwiches and burgers for crunch and visual contrastUsed as a delicate garnish where more robust greens would overwhelm the plateBlanched briefly and shocked for a softer, more substantial side dish (less common technique)Added at the last moment to grain bowls to wilt slightly against warm ingredients

Tips & pitfalls

Wash thoroughly: the deeply lobed leaves trap soil and sand—swish in several changes of cold water, then spin or pat completely dry
Dry completely before dressing: residual water dilutes vinaigrette and accelerates wilting
Tear by hand just before serving: cutting with a knife causes faster browning on cut edges and bruises the delicate tissue
Dress minimally: oak leaf is subtle and delicate; heavy dressing masks its character entirely
Store dry and cold: any moisture remaining on leaves causes slimy breakdown within a day or two
Use within two to three days: it is far more perishable than head lettuces; buy only what you need
Avoid iceberg as a substitute for visual bulk: the flavor and texture gap is too wide—seek baby oak leaf or butter lettuce for similar delicate applications

Nutrition

15kcal

Energy

63 kJ · per 100 g

Where the calories come from

Protein 30%Carbs 63%Fat 7%

Protein

1.4g

3% DV

Carbs

2.9g

1% DV

Fat

0.2g

0% DV

Fiber

1.3g

5% DV

Sugars

0.8g

of which

Sodium

28mg

1% DV

Notable micronutrients

Vitamin K105% DV

Vitamin A41% DV

Vitamin C10% DV

Folate10% DV

Thiamin (B1)6% DV

Riboflavin (B2)6% DV

Source · USDA FoodData Central · Lettuce, green leaf, raw

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In the shops

Matched grocery products

No matched grocery products for Oak Leaf Lettuce yet.

Good to know

Botanical name: Lactuca sativa var. crispa
Type: Loose-leaf, non-heading
Leaf shape: Deeply lobed, oak-leaf silhouette; lobes range from narrow to moderately broad
Colors: Green (pale straw to deep emerald) and red/burgundy (anthocyanin-tipped); both often appear on the same plant
Flavor: Mild, faintly sweet, buttery; red varieties add gentle, clean bitterness
Texture: Tender, thin, delicate leaves
Season: Cool weather; peak in spring and fall; bolts rapidly above 75–80°F
Storage: Refrigerate unwashed in a loosely closed bag with dry paper towel; 3–5 days

Substitutes

Baby spinach — Sturdier texture; sweeter and slightly more assertive; works in most raw applications
Butter lettuce (Boston/Bibb) — Comparable tenderness and mild flavor; larger, rounder leaves instead of lobed; similar delicate character
Green leaf lettuce — Less deeply lobed but similarly mild; holds slightly better under dressing; a reliable everyday substitute
Red leaf lettuce — Same loose-leaf habit; mild with a touch more bitterness; direct color substitute for red oak leaf
Lollo rosso — Frilly, deeply cut leaves; slightly more bitter and sturdy; works as a textural substitute in composed salads