Lettuce
21days to harvest
7-10 daysdays to germinate
Z8–11USDA zones
Easydifficulty
Heirloom

Sowing

Direct sow after last spring frost, or transplant seedlings started indoors 4-6 weeks before planting

Cultivation

Sun
Full sun to partial shade (4-6+ hours)
Water
High — consistent moisture needed
Soil
Well-draining loam, slightly acidic to neutral pH
Spacing
6-12 inches
Height
12-18 inches
Season
Warm season annual

Appearance & flavour

Colour
Green and red
Shape
Intricately lobed and ruffled leaves
Flavour
Spicy, crisp, tender with bold flavor notes and excellent texture from ruffled foliage.

In the kitchen

Salad mixes, fresh green salads, garnish, mesclun blends

Pests, disease & resistance

Pests
Aphids, slugs, snails, flea beetles
Diseases
Lettuce mosaic virus, downy mildew, powdery mildew

Planting calendar by USDA zone

ZoneStart indoorsTransplantDirect sowHarvest
1——June – JulyJune – September
2——May – JulyJune – September
3——May – JuneMay – October
4——April – JuneMay – October
5——April – MayMay – November
6——April – MayApril – November
7——March – MayApril – November
8——March – AprilMarch – December
9——February – MarchFebruary – December
10——January – MarchFebruary – December
11——January – FebruaryJanuary – December
12——January – FebruaryJanuary – December
13——January – FebruaryJanuary – December

Companion planting

8 beneficial pairings indexed for this variety, 3 to avoid.

ChivesRepels aphids and other pests while improving lettuce flavor
CarrotsLoosens soil for lettuce roots and doesn't compete for nutrients
RadishesBreaks up soil, deters flea beetles, and harvests before lettuce needs space
MarigoldsRepels aphids, whiteflies, and nematodes that damage lettuce
SpinachSimilar growing requirements and can be interplanted for succession harvests
GarlicNatural pest deterrent that repels aphids and slugs
NasturtiumsTrap crop for aphids and cucumber beetles, edible flowers add color
DillAttracts beneficial insects like ladybugs that prey on lettuce pests

Avoid

BroccoliHeavy feeder that competes for nutrients and creates too much shade
SunflowersAllelopathic effects inhibit lettuce germination and growth
TomatoesCreate excessive shade and compete for water, may stunt lettuce growth

Nutrition (per 100 g)

Protein (g)
0.742
Fat (g)
0.0738
Carbohydrate (g)
3.37
Vitamin K (µg)
20.5
Vitamin B6 (mg)
0.0401
Calcium (mg)
14.2
Iron (mg)
0.0332
Magnesium (mg)
6.31
Phosphorus (mg)
19.2
Potassium (mg)
139
Zinc (mg)
0.173

Where to buy seed and equipment

Some links are affiliate links. If you buy through them we may earn a commission at no extra cost to you.

Growing it? There is a full cultivation guide at the lettuce growing guide.

Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.

DarkGrow forum

Grown Scarlet Frills?

Post a crop report — day counts, reservoir readings, what worked. Variety-specific logs are the most useful thing on the forum.

Similar varieties

Other lettuce with a comparable time to harvest, so a season that suits Scarlet Frills suits these too.

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