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Wild radish

Raphanus raphanistrum · Brassicaceae

The gardener's calendar

The right move for September

Ideal time to plant wild radish: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

JFMAMJJASOND Planting

ID card

Foliage
Deciduous
Flowering
Spring to summer (April-July)
Adult size
40-60 cm in height
Growth
Fast (3-4 months)
Hardiness
Low hardiness, frost-sensitive
Origin
Mediterranean, Middle East
Soil type
Well-drained, neutral to alkaline
Family
Brassicaceae

Care

Exposure

Choose a location in full sun to encourage vigorous growth and abundant flowering. Radish tolerates partial shade but flowers less generously in it. Avoid heavily shaded areas.

Soil and planting

Prepare well-drained soil, preferably light and slightly chalky. Loosen the soil deeply before sowing or planting. Radish prefers non-compacted soils where its roots can easily penetrate.

Watering

Water regularly but moderately, especially during growth and flowering periods. Let the soil dry slightly between waterings to prevent root rot. Reduce watering in winter or at the end of the growing cycle.

Fertilizer

Work well-decomposed compost into the planting hole. Light application of balanced fertilizer in spring supports flowering. Avoid excess nitrogen, which favors foliage at the expense of flowers.

Pruning and maintenance

Remove spent flowers regularly to extend the flowering period. Eliminate yellowed or diseased leaves. Light pruning after flowering encourages denser branching, though this species is generally low-maintenance.

Diseases and pests

Like all Brassicaceae, radish can be affected by white rot and crucifer insects (flea beetles, whiteflies). Promote good air circulation and regular hygiene. Watering at the base limits fungal problems.

Did you know?

Radish is a well-known ruderal species and a weed in Mediterranean fields and crops since ancient times. Its seeds can remain dormant in the soil for years and germinate as soon as conditions are favorable, giving it a historical role as a 'pioneer weed.' Once, it was eaten as a root vegetable in certain Middle Eastern regions, and its young leaves remain edible in some populations.

Where to buy it

Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.

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Tips generated and checked by Viridia — adapt them to your local climate.