Radish · New Delhi, Delhi, India

When to plant radishes in New Delhi

Main outdoor window

9-16 Dec

A climate estimate. Check your soil, forecast and cultivar.

Timed from last spring frost

7 January

In New Delhi, on your chosen risk.

Ready to pick

31 Dec - 9 Jan

If you plant at the start of the window.

The average last frost. Half of all years are later than this.

Step by step in New Delhi

Download these planting dates (.ics)

Import into Apple Calendar, Google Calendar or Outlook. Dates use the selected risk level and are planning estimates, not frost alerts.

Each window is a planning range. Check the forecast, soil and cultivar before planting; a later date is not automatically safer in hot or wet conditions.

Sow direct

9-16 Dec

Four weeks before your last frost.

Harvest

31 Dec - 9 Jan

Sow in succession. A single sowing gives you a single glut. Sow a short row every 10 days through the window above and you get a steady supply instead.
Frost tolerance
Hardy
Damaged below
-6°C (21.2°F)
Days to maturity
22–30
Min soil temp
4.5°C (40.1°F)
Spacing
3 cm
Sowing depth
12 mm (0.5 in)
Sun
Full

Radishes through the year

Against the frost risk in New Delhi

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Frost risk Sow direct Harvest Today
Open My Garden

Seasonal context

Rainfall and the growing season in New Delhi

July has the highest average precipitation (217 mm); November has the lowest (4 mm). Compare this pattern with the planting windows and your water supply.

Jan 16 mm
Feb 22 mm
Mar 18 mm
Apr 15 mm
May 34 mm
Jun 81 mm
Jul 217 mm
Aug 203 mm
Sep 120 mm
Oct 13 mm
Nov 4 mm
Dec 8 mm

During wetter months, check that beds and containers drain after heavy rain. During drier months, plan how you will keep seeds and new transplants watered. Monthly averages can hide long dry spells and intense storms; they do not show soil moisture, humidity or this week's weather.

Source: NASA POWER, corrected MERRA-2 precipitation, 2001–2020. Values are approximate monthly totals, including the water equivalent of snow, from the nearest 0.5° × 0.625° grid cell. This reference period differs from the temperature record. Rainfall provides context and does not change the calculated planting dates. Method and limitations.

Monthly growing conditions in New Delhi

Compare the planting window with the local temperature pattern. These are historical monthly averages, not this year's forecast or measured soil temperatures. Average frost days do not tell you whether a particular night will freeze.

NASA POWER climate averages, 1995–2024
MonthAverage lowAverage highFrost days
January 6.8°C (44.2°F) 22.3°C (72.1°F) 0.1
February 9.8°C (49.7°F) 26.5°C (79.7°F) 0.0
March 15.4°C (59.6°F) 32.9°C (91.2°F) 0.0
April 21.8°C (71.3°F) 39.3°C (102.7°F) 0.0
May 27°C (80.6°F) 42.6°C (108.6°F) 0.0
June 29.5°C (85°F) 41.9°C (107.4°F) 0.0
July 28°C (82.4°F) 37°C (98.6°F) 0.0
August 26.1°C (78.9°F) 34°C (93.2°F) 0.0
September 23.7°C (74.6°F) 33.7°C (92.7°F) 0.0
October 18.8°C (65.9°F) 32.6°C (90.6°F) 0.0
November 13.5°C (56.3°F) 28.5°C (83.3°F) 0.0
December 8.7°C (47.6°F) 23.9°C (75.1°F) 0.0

For radishes, also check drainage, sunlight and cultivar requirements. See the rainfall context above; humidity, irrigation and local pest pressure are not calculated.

Local growing check

Before choosing radishes for New Delhi

  • July is the wettest month in the rainfall grid, averaging about 217 mm. Check how your own bed drains and plan watering around actual soil moisture; monthly rain totals are not an irrigation schedule.

The temperature and rainfall tables on this page show the underlying climate estimates. How these suitability checks work · Record what happens in your garden.

Before you plant radishes

Use the calendar to plan ahead, then check the conditions in your own garden.

  • Measure the soil at sowing depth. Aim for at least 4.5°C (40.1°F); the calendar estimates soil warmth from air temperatures and cannot measure your bed.
  • Frost tolerance does not make saturated or frozen soil suitable for planting. Wait until the bed can be worked without smearing or compacting it.
  • Use the maturity range on your seed packet when choosing a variety. Cold, short days and transplant stress can make harvest later than the calendar estimate.

Small salad radishes and winter radishes need different plans

Sow where the roots will grow and thin crowded seedlings. Use a loose, well-drained seedbed and maintain even moisture so the roots can expand steadily.

Heat, drying soil and delayed harvest can produce woody roots or bolting. Pull a sample when the roots approach the expected size rather than waiting for every plant to look identical.

Use short rows and repeat them while conditions remain suitable. A second small batch is more useful than a large first sowing that becomes tough before it can be eaten.

Growing in a container

Short-rooted salad varieties suit containers with enough depth for their roots. Do not use the same shallow setup for a long winter radish.

What to record this season

At what size did roots become woody, and was the bed drying out? Add the cultivar, sowing date and conditions to your growing record so you can compare next season.

Further reading: NC State Extension Plant Toolbox: Raphanus sativus . General crop guidance; local dates on this site are calculated separately. Source checked 19 September 2026 by Safe to Plant; this is not an expert review.

The reference describes crop identity and cultivation. North Carolina planting dates are not local dates for other regions.

How the dates are calculated and their limits · Keep a growing record · Report a local discrepancy

Why these dates

Sow where the roots will grow and thin crowded seedlings. Use a loose, well-drained seedbed and maintain even moisture so the roots can expand steadily.

Cold tolerance varies with cultivar, plant age, acclimatisation and the duration of a freeze. A plant surviving frost does not mean its leaves, heads, flowers or developing crop will remain undamaged. Check the forecast and the variety's local advice.

This calendar uses frost-relative offsets as a starting point. Radishes are timed for direct sowing 4 weeks before it, and this page simply resolves those offsets against the frost date computed for New Delhi.

See every crop timed for New Delhi →

Growing radishes in New Delhi

Can I grow radishes in New Delhi?

The calendar estimates a planting window, not a guarantee of success. July is the wettest month in the rainfall grid, averaging about 217 mm. Check how your own bed drains and plan watering around actual soil moisture; monthly rain totals are not an irrigation schedule.

When should I plant radishes in New Delhi?

Aim for 9-16 Dec in an average year. If you would rather not gamble on the weather, wait until 10-17 Dec - by then frost has finished in nine years out of ten.

When might radishes be ready to harvest in New Delhi?

The estimated period is 31 Dec - 9 Jan, based on 22 to 30 days from the modeled planting date. Cultivar, planting material and growing conditions can change this interval; check the plant as well as the calendar.

How much frost will radishes tolerate?

Cold tolerance varies with cultivar, plant age, acclimatisation and the duration of a freeze. A plant surviving frost does not mean its leaves, heads, flowers or developing crop will remain undamaged. Check the forecast and the variety's local advice.