Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
Radish in a dream is lawful sustenance. Eating it indicates striving for a good matter. Whoever sees himself plant it has started a blessed matter.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
Radish indicates a man from the People of the Book (Ahl al-Dhimma). There is no good in seeing it.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
Radish is interpreted as worry. Whoever sees himself eat it will be afflicted with worry.