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Radish care guide

Radish (Raphanus sativus) is a foliage plant that likes very bright light or direct sun and water every 3 days. Here is everything you need to keep it healthy.

Botanical nameRaphanus sativus
Also known asFrench Breakfast Radish, Cherry Belle Radish
Plant typeFoliage plant
LightVery bright light or direct sun
WateringWater every 3 days
FertilizingFeed every two weeks in the growing season
GrownOutdoor
Type of plantEdible

How often to water Radish

Water Radish every 3 days as a baseline. Treat that as a reminder to check rather than a rule to follow blindly โ€” push a finger an inch or two into the soil and water only if it feels dry at that depth.

Expect to water more often in warm, bright, or dry conditions, and noticeably less in winter when growth slows. A pot with drainage holes matters more than the exact interval: standing water is the most common way houseplants are lost.

Light requirements

Radish prefers very bright light or direct sun. It needs as much light as you can give it, including several hours of direct sun. A south-facing windowsill or a sunny patio is ideal.

If growth becomes stretched and leggy with long gaps between leaves, it is reaching for more light. Pale or bleached patches usually mean the opposite โ€” too much direct sun.

Feeding and fertilizer

Feed Radish every two weeks through the growing season using a balanced liquid fertilizer at half the strength on the label. Pause over winter โ€” an unfed plant recovers far more easily than one with fertilizer burn.

Care notes

One of the fastest vegetables โ€” ready in 3โ€“4 weeks. Water consistently to prevent cracking; harvest before they get pithy.

Track your Radish in Plant CompanionFree ยท get a simple daily list of what needs watering

Frequently asked questions

How often should you water Radish?

As a starting point, water Radish every 3 days, then adjust to your own conditions. Check the soil first: push a finger an inch or two down and only water if it feels dry at that depth. Most Radish problems come from watering on a fixed schedule rather than watering when the plant actually needs it.

How much light does Radish need?

Radish prefers very bright light or direct sun. It needs as much light as you can give it, including several hours of direct sun. A south-facing windowsill or a sunny patio is ideal.

Should you fertilize Radish?

Feed Radish every two weeks during the active growing season (roughly spring through early autumn) with a balanced liquid fertilizer at half strength. Stop feeding in winter, when growth slows and unused nutrients build up in the soil.

Is Radish an indoor or outdoor plant?

Radish is grown outdoors, where it gets the light and air movement it needs.

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