Raphanus sativus var. sativus(radish, "Hatsukadaikon")
Japanese name: ハツカダイコン（二十日大根、廿日大根） Scientific name:Raphanus sativus var. sativus
[Overview]
An annual or biennial.
The Japanese name derives from the fact that the time from sowing to harvest can be as short as about 20 days.
A small daikon radish used mainly in salads, with a spherical to elliptical root 1–3 cm in diameter and 2–10 cm long; the skin is usually reddish purple or white.
Leaves are alternate and pinnately lobed.
The flowers are borne in racemes at the stem tips and are white and four-petaled.
[History]
The place of origin is unknown, but Central Asia is one of the possible centers of origin.
It came to Japan in the Meiji period.
[Cultivation]
Propagate from seed.
It dislikes acidic soil, so apply lime.
It prefers a cool climate and becomes susceptible to pests and diseases in midsummer.
