Raphanus sativus var. longipinnatus

Daikon

The large East Asian mild tasting, long white radish that can grow extremely large if left in the ground, but it is best harvested when about the size of a medium carrot. 

Uses

Daikon grows quickly so it is ready to harvest in around 8-10 weeks from sowing, Care needs to be taken when harvesting daikon as they are quite brittle and easily damaged. Daikon can be refrigerated and stored for about 2 weeks from harvest. Wash the roots and cut off the leaves and store in plastic bags. 

Culture

Cool weather with temperatures between 10°C and 20°C is preferable for most Daikon varieties as they have a tendency to go to seed during warm to hot conditions. There are slow bolting varieties available. 
Daikon radishes are easy to grow but need deep, moist friable soils.

Propagation

Sow seeds, at a depth of about 3 times the size of the seed, directly where they are to grow and space the seeds about 40 cm apart with the same between rows.