Sword Choy (A-Choy)


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Sword Choy or Sword Lettuce is a crisp and tender, slightly serrated, loose-leaf lettuce with a texture like butter lettuce, a deep crunchy midrib, and mild and nutty flavor that is reminiscent of almonds! This refreshing plant is very popular in the hot climates of Taiwan and Southern China and is delicious in stir-fries, salads, and soups. It is often stir-fried with fresh chopped garlic or blanched and served with oyster sauce much like Yu Choy Sum. A light and hearty addition to summer meals!

Also Known As: AA Choy Sum, A-Choy, AA Cai, Chinese Narrow Leaf Lettuce, Oriental Lettuce, Yu Mai Tsai, Pointed Leaf Lettuce, Arden Lettuce, Taiwanese Sword Lettuce, Taiwanese Cabbage, Taiwanese Pointed Lettuce Greens, AA Chop Xin, €œA€ Lettuce, Stem Lettuce, Celtuce Lettuce, Wosun, Celery Lettuce, Sharp Leaf Celtuce, Benih, Wangi, Manis, Salad Tajam

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Plant Name:
Lettuce, Sword Choy
Latin Name:
Lactuca sativa
Days to Germinate: 4-8
Days to Harvest: 50
Germination Rate: 97%
Test Date: 2/23
Growth Habit: Upright
USDA Zones: 3-12
Lifespan: Annual
Brand: TomorrowSeeds
Sunlight: Full Sun, Partial Shade
Heirloom, Open-Pollinated
Fungicide-Treated Seeds:*: No
Seeds Packed For**: 2024
*Fungicide-treated seeds protect the seedlings from diseases until they are up and growing. Do not eat treated seeds.
**Seeds are freshly packed for the growing season of the year listed. Seeds are still viable beyond pack date. Store in a cool and dry location such as the refrigerator or basement to best preserve germination rates.

Planting Instructions:


Soil Preparation:

Remove weeds, large rocks, and litter from the planting area. Till the soil 8-10 inches deep and rake several times to break up large clods. It is best to do this when the soil is dry enough to not stick to garden tools. Loosening the soil will help the plant establish strong roots.


In the Spring, plant Sword Choy after all danger of frost has passed. Plant seeds 1/4-1/2 inch deep in raised beds 1 inch apart within the row, then thin to 8 inches apart when plants gro about 2-4 inches tall. Space the rows about 2-3 feet apart if growing with other plants. Planting in moist soil is best for seeds to germinate and emerge quickly.

Planting Depth: 1/4 inch
Within-Row Spacing:
1 inch, thin to 8-12 inches
Between-Row Spacing:
24-36 inches


Care During the Season:

Watering: Water the plants about once a week in dry weather.

Weeding:  When hoeing and pulling weeds, try not to dig too deep to prevent the plant's roots from damage.

Fertilizing: Sword Choy does not usually need fertilizer.
Insecticides: Insecticides may be used to protect plants. Bt-based insecticides and sulfur are organic options. Sulfur also has fungicidal properties and helps in controlling many diseases. Before using a pesticide, read the label and always follow cautions, warnings and directions.

Diseases: Diseases may be a possibility during cool, wet weather. If spots appear on leaves or bean pods, treat the plant with an approved fungicide. Neem oil, sulfur, and other fungicides may be used.


Sword choy is usually harvested when the stem is 10 inches tall but the plant can be harvested at any stage of growth. Store by wrapping the Sword Choy in a dry paper towel and place it in a plastic bag or storage container then store in the crisper drawer of the refrigerator.


Nutrition Facts:

Sword Choy
Principle Nutrient Value per 100 g. Percent of RDA
Energy 18 Kcal 1 %
Carbohydrates 3.65 g 2.8%
Protein 0.85 g 1.5%
Total Fat 0.30 g 1%
Cholesterol 0 mg 0%
Dietary Fiber 1.7 g 4.5%
Folates 46 µg 11.5%
Niacin 0.550 mg 3.5%
Pantothenic acid 0.183 mg 3.5%
Pyridoxine 0.050 mg 4%
Riboflavin 0.070 mg 6%
Thiamin 0.055 mg 5%
Vitamin-A 3500 IU 117%
Vitamin-C 19.5 mg 32.5%
Sodium 11 mg <1%
Potassium 330 mg 7%
Calcium 39 mg 4%
Copper 0.040 mg 4%
Iron 0.55 mg 7%
Magnesium 28 mg 7%
Manganese 0.688 mg 11%
Phosphorus 29 mg 4%
Zinc 0.27 mg 2.5%