How to Grow Purple Yam Labano Chinese White
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Purple Yam Labano Chinese White
Raphanus sativus var. longipinnatus
vegetablePurple Yam Labano Chinese White is an Asian radish variety characterized by its elongated white root with purple or deep red exterior coloring. This heirloom variety produces mild, slightly sweet flesh with a crisp texture and is commonly used in Asian cuisine. It's a cool-season crop that requires consistent moisture and proper spacing for optimal root development.
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Example Purple Yam Labano Chinese White timeline · Pittsburgh, PA (Zone 6b)
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Plant Purple Yam Labano Chinese White
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Purple Yam Labano Chinese White
Around Jun 11≈ 55 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Purple Yam Labano Chinese White dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9; prefers cooler temperatures for best flavor development
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Germination
1-2 weeksSeeds sprout and first true leaves emerge within 3-7 days. Seedlings are delicate with two cotyledons followed by oval true leaves.
Keep soil consistently moist but not waterlogged. Maintain soil temperature around 60-70°F. Thin seedlings to proper spacing once they have 1-2 true leaves.
Seedling to Early Growth
2-3 weeksYoung plants develop 4-6 true leaves and establish a small taproot. The characteristic purple exterior begins to show on the developing root.
Continue thinning to proper spacing. Water consistently to prevent root stress. Monitor for flea beetle damage on leaves. Keep soil surface light and loose.
Root Development
3-4 weeksThe root elongates and thickens, developing the white flesh interior with purple exterior. Above-ground foliage grows more robust with deeply lobed leaves characteristic of Asian radish varieties.
Maintain even moisture to prevent cracking and hollowing. Avoid excessive nitrogen which delays root development. Remove any competing weeds. Loosen soil around roots if crusted.
Maturation
1-2 weeksRoot reaches full size (typically 6-10 inches long) with firm white flesh and deep purple exterior. Foliage becomes more abundant and robust.
Continue regular watering. Begin harvest when roots reach desired size. Overmature roots may become woody or hollow. Check maturity by gently uncovering the root crown.
Harvest Ready
Variable - harvest within 5-7 days of readinessRoots are firm, properly sized, and fully colored. The purple exterior is vibrant and the texture is crisp throughout.
Harvest promptly to prevent root cracking from overwatering or becoming overmature. Pull gently and brush away soil. Store in cool conditions.
Common Pests
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Use row covers during early growth stages. Apply neem oil or spinosad if infestations occur. Encourage beneficial insects like parasitic wasps.
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Use fine mesh row covers. Practice crop rotation. Remove infected plants immediately. Apply beneficial nematodes to soil.
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Install row covers before moths arrive. Use Bt (Bacillus thuringiensis) spray. Hand-pick egg clusters from leaves.
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Remove debris that provides shelter. Use beer traps or copper barriers. Encourage natural predators like ground beetles.
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Ensure good air circulation. Water at soil level only. Apply sulfur dust if needed. Remove infected leaves promptly.
Uses
Fresh Vegetable in Asian Cuisine
CulinaryPurple Yam Labano Chinese White is prized in Asian kitchens for both raw and cooked preparations. It's commonly sliced thinly for fresh salads, pickled, stir-fried, or added to soups and broths. [source]
Pungent Root Vegetable
CulinaryThe mild spiciness and crisp texture make it ideal for crudités platters, noodle dishes, and as a palate cleanser. The purple exterior provides striking visual appeal to dishes. [source]
Digestive Aid and Anti-inflammatory
MedicinalTraditional Asian medicine values radishes for their digestive properties and potential anti-inflammatory compounds. The enzymes naturally present may aid in digestion of fatty foods. [source]
Pickling and Preservation
HouseholdThe crisp texture holds well through fermentation and pickling processes. Purple Yam Labano is traditionally preserved in brine or vinegar for extended storage and flavor development. [source]
Foliage for Beneficial Insects
WildlifeThe leafy tops attract and support beneficial insects like parasitic wasps and hoverflies. After harvest, foliage can be composted to enrich garden soil. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest when roots are 6-10 inches long and 1-2 inches in diameter, typically 55-70 days after planting. Gently pull plants from loosened soil or dig carefully to avoid bruising the tender roots. The best flavor occurs when harvested during cool weather; spring and fall crops are superior to summer crops. For storage, remove foliage, brush off soil gently, and store in cool (32-40°F), humid conditions for 2-3 weeks. Check roots regularly during storage and remove any that show signs of decay.
Fun Facts
- 🌱 Purple Yam Labano Chinese White is a heritage variety with roots tracing back centuries to Asian agricultural traditions, particularly valued in Chinese and Southeast Asian cuisines.
- 🌱 Unlike common red radishes, this variety develops its deep purple coloring gradually as it matures, with the color intensity increasing in cooler autumn weather.
- 🌱 The crisp texture and mild flavor remain stable longer than many radish varieties, making it an excellent choice for markets and storage, as evidenced by its continued popularity in Asian food markets worldwide.
Gardening Terms
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