Raphanus — 14 species

Raphanus is a small Brassicaceae genus of fast-growing edible root crops, anchored by the cultivated radish (R. sativus) and the weedy wild radish (R. raphanistrum). All species thrive in full sun — at least six hours of direct light daily — and prefer consistently moist, well-drained soil; they bolt and become pithy if allowed to dry out or overheat. Toxicity varies across the genus: cultivated radishes are generally safe for pets, while wild radish can irritate the digestive tract of dogs and is toxic to horses. Always verify the specific species before assuming safety.