How to Grow Long White Radish Tokyo Cross
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Long White Radish Tokyo Cross
Raphanus sativus var. longipinnatus
vegetableTokyo Cross is a Japanese daikon radish variety producing long, slender white roots that are crisp, tender, and mildly sweet. This fast-growing cultivar is prized for its uniform shape and excellent quality, both raw and cooked. It's a cool-season crop ideal for spring and fall gardens.
When should you plant Long White Radish Tokyo Cross in your zone?
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Example Long White Radish Tokyo Cross timeline · Pittsburgh, PA (Zone 6b)
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Plant Long White Radish Tokyo Cross
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 Long White Radish Tokyo Cross
Around Jun 6≈ 50 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Long White Radish Tokyo Cross dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 2-9; prefers cooler temperatures of 50-70°F
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Get my Long White Radish Tokyo Cross timeline →Growth Stages
Germination
7-10 daysSeeds sprout and first true leaves emerge; seedlings are small and delicate
Keep soil consistently moist but not soggy. Maintain temperature 60-70°F. Thin seedlings to proper spacing within 2-3 weeks to avoid overcrowding.
Seedling
2-3 weeksFirst true leaves develop; plants have 2-4 leaves and are 1-2 inches tall
Thin to final spacing of 4 inches apart. Remove weaker seedlings. Maintain consistent moisture. Protect from slug and insect damage.
Vegetative/Root Development
3-4 weeksFoliage expands with deeply lobed leaves; white taproot begins elongating beneath soil surface
Weed regularly to reduce competition. Maintain even moisture to prevent root splitting. Mulch around plants to retain moisture and suppress weeds. No fertilizer needed if soil is rich.
Root Enlargement
2-3 weeksRadish roots are visible at soil surface, reaching 8-12 inches long; shoulders may protrude slightly above soil
Hill soil around exposed shoulders to prevent greening and bitterness. Continue consistent watering. Monitor for pests like flea beetles. Radishes are nearly ready to harvest.
Harvest-Ready
Harvest window 1-2 weeksRoots are 10-14 inches long, firm, and smooth; shoulders are 1-1.5 inches in diameter; texture is crisp and tender
Harvest promptly at peak maturity. Over-mature roots become woody and hollow. Twist or pull radishes from soil, or loosen with a garden fork. Trim greens and store roots in refrigerator.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use fine mesh row covers over seedlings; spray with neem oil or insecticidal soap; diatomaceous earth on soil surface; plant in shaded areas for vulnerable seedlings
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Protect with row covers until plants establish; use diatomaceous earth around base; apply beneficial nematodes to soil; avoid planting near brassicas
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Remove by hand in early morning; set beer traps; spread diatomaceous earth or copper tape around plants; encourage predatory beetles
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Pick beetles by hand; spray with neem oil; encourage natural predators like parasitic wasps
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Spray with strong water stream; apply insecticidal soap; use reflective mulches; release ladybugs
Uses
Fresh and Cooked Preparations
CulinaryTokyo Cross radishes are excellent sliced raw in salads, pickled whole or sliced, or cooked in stir-fries and soups. Their mild, slightly sweet flavor and crisp texture make them more versatile than smaller red radish varieties. [source]
Asian Cuisine Staple
CulinaryLong white radishes are essential in Japanese, Korean, and Chinese cooking. They are grated into condiments, fermented for kimchi, roasted as a side dish, or used in broths and hot pots. [source]
Digestive and Immune Support
MedicinalDaikon radishes contain enzymes that aid digestion and are rich in vitamin C and antioxidants. In traditional medicine, they are valued for supporting respiratory health and boosting immunity. [source]
Juice and Fermentation
HouseholdFresh daikon juice is consumed in small amounts as a digestive tonic. Fermented daikon products like tsukemono (Japanese pickles) are probiotic-rich side dishes. [source]
Companion Planting & Soil Building
WildlifeRadish roots break up compacted soil and improve soil structure. As a quick-growing crop, they can be succession-planted and tilled back in as a cover crop to add organic matter. [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 10-14 inches long and 1-1.5 inches in diameter at the shoulder. Roots may be pulled by hand once loose, or loosened with a garden fork first. Tokyo Cross grows uniformly, making harvest timing consistent across the planting. Twist off the greens just above the root before storage. For maximum crispness and sweetness, harvest in cool morning hours. Spring crops taste slightly milder than fall crops. Store unwashed in refrigerator in a plastic bag; roots will keep 2-3 weeks. For longer storage up to 2 months, layer roots in damp sand in a cool cellar or root storage area.
Fun Facts
- 🌱 Tokyo Cross was specifically bred in Japan for uniformity and speed, making it a favorite among market gardeners and home growers who want predictable, reliable harvests within 50-70 days.
- 🌱 Unlike smaller red radish varieties, long white daikon radishes can grow quite large (up to 18 inches) without becoming woody or bitter, due to their high water content and balanced sugar profile.
- 🌱 Radish leaves are completely edible and nutritious, containing more vitamin C and calcium than the root itself; they can be sautéed, added to soups, or dried for tea.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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