Wild Radish (Raphanus raphanistrum)

Wild Radish

Raphanus raphanistrum

It bears delicate pale blooms amid sharp foliage, a hardy wild annual. Common name: Wild Radish.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Full sun to partial shade; tolerates dry, nutrient-poor soil conditions
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Watering Water deeply only when top 5–7 cm of soil is fully dry; drought-tolerant once established
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Temperature Thrives in cool to warm temperatures; tolerates light spring frost without damage
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Characteristics

  • Leaf: Basal rosette of lobed, bristly leaves; stem leaves are smaller, clasping
  • Flower: Four-petaled, pale pink to white blooms with purple veins; lightly fragrant
  • Stem: Erect, branched, covered in coarse, stiff hairs
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Care Guide

Watering

Water occasionally during prolonged dry spells to support flowering

Fertilization

Light application of compost in early spring. Avoid high-nitrogen fertilizers to prevent excessive foliage growth over flowering

Composted eggshell powder:Sprinkle a thin layer around plant base in early spring; avoid direct contact with foliage to prevent burning
Pruning
  • Deadhead spent blooms to encourage extended flowering period
  • Remove yellowing basal leaves to improve airflow and reduce pest risk
  • Cut back entire plant after flowering to control self-seeding if desired
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA indicates no toxicity to cats; non-toxic if ingested

Humans: No known toxic effects for humans; young leaves and seed pods are edible when cooked

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Garden Uses & Culture

Culture: N/A

Usage: Wild forage; young leaves and seed pods are edible when cooked; pollinator-friendly ornamental for wild gardens