Raphanus sativus var. longipinnatus
Growing calendar
Typical timing for central Japan (Kanto region). Shift it for your own climate, and record your actual dates.
Guides
- Daikon Soil Preparation: Preventing Forked and Stunted Roots
- How to Sow Daikon Radish Seed Directly in the Ground
- Caring for Daikon Radish: Watering, Feeding and Earthing Up
- Daikon Radish Growing Calendar: Sowing to Winter Harvest
- Daikon Radish Problems: Pests, Rot and Forked or Split Roots
- When to Harvest Daikon Radish and How to Store It
Common problems
Start from what you can see on the plant.
Varieties (31)
31 daikon radish varieties have their own page, with days to maturity, growth habit, traits and uses.
See all 31 daikon radish varieties
Pests and diseases (40)
Problems recorded for this plant, most serious first.
White Rust
MajorDisease
Creamy white slightly raised irregular pustules form on the leaf underside and burst through the skin releasing white powder. The upper surface turns pale yellow and heavy infection ruins appearance and market value.
Root-lesion Nematode
MajorPest
Elongated blackish brown necrotic lesions form on the root surface and fine roots rot away. Above ground the stand is uneven and plants stay small with pale foliage.
Cabbage White Caterpillar
CommonPest
Irregular holes appear in the leaves and eventually only the veins remain. Dark green pellets of frass are conspicuous at the crown and on leaf undersides.
Diamondback Moth
CommonPest
Larvae graze the leaf tissue from below, leaving the upper skin as white window-like patches. As they grow they chew many small holes and also attack the growing point.
Bolting
CommonDisorder
A flower stalk rises from the center of the plant and the leaves turn tough and stringy, spoiling eating quality. Heading vegetables run to seed without ever forming a head.
Damping-off
CommonDisease
The stem pinches in at soil level, turning water-soaked to brown and thin, and the seedling topples over. Infection before emergence makes the stand uneven with missing plants.
Bacterial Soft Rot
CommonDisease
The crown or the head becomes water-soaked and soft, then collapses into a slimy mush. The rotting tissue gives off a distinctive foul odor.
Cutworms
CommonPest
Typically a newly transplanted seedling is severed at soil level and found toppled the next morning. Scratch the soil beside the cut seedling and a gray-brown caterpillar turns up.
Sawflies
CommonPest
Feeding advances rapidly from the leaf margin, leaving only the veins within a short time. The larvae rear up when disturbed and are often lined up on the leaf underside.