How to Grow Long White Radish
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Long White Radish
Raphanus sativus var. longipinnatus
vegetableLong White radish, also known as Daikon or Mooli, is an East Asian root vegetable with an elongated white body and mild flavor. It grows 8-12 inches long and can be harvested young for tenderness or mature for storage. This cool-season crop is versatile in cuisine and remarkably easy to grow.
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Example Long White Radish timeline · Pittsburgh, PA (Zone 6b)
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Plant Long White Radish
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
Around Jun 6≈ 50 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Long White Radish dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9; grows best in cool seasons (spring and fall)
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Germination & Seedling
2-3 weeksSeeds sprout in 3-7 days. Seedlings emerge with cotyledons followed by true leaves. Plants are delicate and vulnerable.
Keep soil evenly moist. Thin seedlings when 1-2 inches tall to proper spacing. Protect from slugs and flea beetles with row covers.
Vegetative Growth
3-4 weeksFoliage develops with deeply lobed green leaves. Root begins elongating underground. No visible radish yet but critical growth phase.
Maintain consistent moisture and soil temperature 50-65°F. Remove row covers once established. Weed carefully to avoid root damage. Apply balanced fertilizer mid-growth.
Root Development
3-4 weeksWhite root thickens and extends downward. Foliage becomes fuller. Root shoulders may push slightly above soil surface.
Continue regular watering. Mulch around plants to keep soil cool and retain moisture. Hill up loose soil around shoulders if exposed to prevent green discoloration.
Maturation
1-2 weeksRoot reaches full length (8-12 inches) and proper thickness. Foliage remains lush green. Root should feel firm when gently squeezed.
Stop excessive nitrogen to prevent leafy growth over root development. Monitor soil moisture carefully—too much causes cracking, too little causes woodiness.
Harvest-Ready
Ready to harvestRoot is fully developed, crisp, and tender. Can harvest at any size from baby (4 inches) to mature (12 inches).
Harvest before hard freezes in fall. In spring, harvest before heat sets in and roots become woody. Gentle watering before harvest eases pulling.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use row covers until establishment. Apply neem oil or spinosad. Plant nasturtiums as trap crop.
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Use floating row covers. Apply diatomaceous earth around base. Intercrop with companion plants to mask crop.
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Remove debris and mulch that harbor slugs. Use copper barriers or beer traps. Hand-pick in early morning.
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Spray with strong water jet. Apply insecticidal soap or neem oil. Encourage beneficial insects.
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Place cardboard collars around seedlings. Remove debris from planting area. Till soil before planting.
Uses
Fresh & Pickled Preparations
CulinaryLong White radish has a mild, slightly sweet flavor with a crisp, juicy texture. Slice thin for fresh salads, stir-fries, or serve with dipping salt; pickle for extended storage and tangy flavor. [source]
Asian Cuisine Staple
CulinaryEssential in Japanese, Chinese, and Korean cooking. Used in soups, braised dishes, kimchi preparations, and as a palate cleanser in sushi meals. [source]
Digestive & Immune Support
MedicinalLong White radish contains glucosinolates and vitamin C, traditionally used in Asian herbalism to aid digestion, clear phlegm, and support respiratory health. [source]
Enzyme-Rich Food
HouseholdHigh in amylase and other enzymes that support digestion, especially when consumed raw. Often recommended as a digestive aid in traditional medicine. [source]
Ornamental Foliage & Seed Pods
CraftAttractive feathery foliage can be used in flower arrangements. Seed pods (if left unharvested) are edible and often used in stir-fries as a delicacy. [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 anytime from golf-ball size (tender, mild) to full maturity (8-12 inches). Gently loosen soil around base and pull carefully. Harvest before hard freezes in fall or before intense heat in spring—heat causes bolting and woodiness. For storage, twist off foliage, brush off soil gently, and store in refrigerator in plastic bag (lasts 3-4 weeks). Can also be stored in cool root cellar buried in sand for longer storage.
Fun Facts
- 🌱 Long White radish (Daikon) can grow over 12 inches long and weigh 5+ pounds, yet remain tender and mild when grown in cool conditions—temperature is key to quality.
- 🌱 In Japanese cuisine, daikon has been cultivated for over 2,000 years and is considered one of the most important vegetables, used in more dishes than almost any other ingredient.
- 🌱 Radish greens are highly nutritious and should never be discarded; they're rich in calcium and vitamins A & C, and can be sautéed, added to soups, or made into pesto.
Gardening Terms
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