Lettuce
37days to harvest
7-10 daysdays to germinate
Z5–9USDA zones
Easydifficulty
Heirloom

Sowing

Direct sow from June through October for best yields; spring sowing also possible but yields lower in most climates

Cultivation

Sun
Full sun to part shade
Water
High — consistent moisture needed
Soil
Well-draining, fertile soil rich in organic matter
Spacing
8-12 inches
Height
3 feet
Season
Warm season annual

Appearance & flavour

Colour
Red-purple
Size
8-10"
Shape
Long, pencil-thin budded flower stems
Flavour
Mild, pleasant mustard flavor with tender texture, suitable for both raw and cooked preparations.

In the kitchen

Raw salads, stir-fries, soups, light cooking

Pests, disease & resistance

Pests
Flea beetles, cabbage moths, aphids
Diseases
Downy mildew, club root, white rust

Planting calendar by USDA zone

ZoneStart indoorsTransplantDirect sowHarvest
1——June – JulyJuly – September
2——May – JulyJune – September
3——May – JuneJune – October
4——April – JuneJune – October
5——April – MayMay – November
6——April – MayMay – November
7——March – MayApril – November
8——March – AprilApril – December
9——February – MarchMarch – 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 improves growth, while providing natural pest deterrent
RadishesBreak up soil for shallow lettuce roots and mature quickly without competing
CarrotsDifferent root depths prevent competition and carrots loosen soil for lettuce
MarigoldsRepel nematodes, aphids, and other pests that damage lettuce leaves
GarlicNatural fungicide properties help prevent lettuce diseases like downy mildew
SpinachSimilar growing requirements and can be interplanted for succession harvests
NasturtiumsTrap crop for aphids and flea beetles, protecting lettuce from damage
DillAttracts beneficial insects that prey on lettuce pests like aphids

Avoid

BroccoliCompetes heavily for nutrients and can shade out lettuce with large leaves
FennelReleases allelopathic compounds that inhibit lettuce germination and growth
SunflowersAllelopathic effects suppress lettuce growth and tall plants create excessive shade

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 Hon Tsai Tai?

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 Hon Tsai Tai suits these too.

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