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

Cultivation

Sun
Full sun to partial shade (4-6+ hours)
Water
High — consistent moisture needed
Soil
Well-drained loam, rich in organic matter, neutral to slightly acidic pH (6.0-7.0)</anilType> <parameter name="sowingMethod">Direct sow after last frost in spring, or 8-10 weeks before first fall frost for fall harvest
Spacing
6-8 inches
Height
12-18 inches
Season
Warm season annual

Appearance & flavour

Colour
Bright green
Shape
Deeply scalloped margins, broad leaves
Flavour
Sweet and mildly spicy with tender, soft leaves and subtle wasabi-like notes.

In the kitchen

Salads, garnishes, microgreens, Asian cuisine, fresh eating, salad mixes

Pests, disease & resistance

Pests
Aphids, slugs, snails
Diseases
Downy mildew, lettuce mosaic virus

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

9 beneficial pairings indexed for this variety, 2 to avoid.

ChivesRepels aphids and improves flavor while taking minimal space
CarrotsDeep roots don't compete with shallow lettuce roots, carrots loosen soil
RadishesQuick-growing radishes break up soil and can be harvested before lettuce needs space
MarigoldsRepel aphids, whiteflies, and other pests that commonly attack lettuce
SpinachSimilar growing requirements and can be succession planted together
GarlicNatural pest deterrent against aphids and slugs that damage lettuce leaves
NasturtiumsAct as trap crop for aphids and cucumber beetles, draws pests away from lettuce
DillAttracts beneficial insects that prey on lettuce pests
ParsleyCompatible growth habits and attracts beneficial insects for pest control

Avoid

BroccoliCompetes for nutrients and space, both are heavy nitrogen feeders
SunflowersTall growth creates too much shade and competes heavily for nutrients

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

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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 Wasabina?

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 Wasabina suits these too.

Browse all 110 lettuce