Snapdragon · Delhi Cantonment, Delhi, India

When to plant snapdragons in Delhi Cantonment

Main outdoor window

24 Dec - 21 Jan

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

Timed from last spring frost

7 January

In Delhi Cantonment, on your chosen risk.

First flowers

24 Mar - 23 Apr

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 Delhi Cantonment

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.

Start indoors

29 Oct - 26 Nov

Ten weeks before your last frost, under cover or on a windowsill.

Plant out

24 Dec - 21 Jan

Two weeks before your last frost.

In flower

24 Mar - 23 Apr

Frost tolerance
Hardy
Damaged below
-8°C (17.6°F)
Days to flowering
90–120
Hardy to
Zone 5a–11a
Spacing
25 cm
Sowing depth
1 mm (0 in)
Sun
Full

Snapdragons through the year

Against the frost risk in Delhi Cantonment

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

Frost risk Start indoors Plant out Harvest Today
Open My Garden

Seasonal context

Rainfall and the growing season in Delhi Cantonment

July has the highest average precipitation (179 mm); November has the lowest (4 mm). Compare this pattern with the planting windows and your water supply.

Jan 14 mm
Feb 20 mm
Mar 18 mm
Apr 16 mm
May 35 mm
Jun 71 mm
Jul 179 mm
Aug 175 mm
Sep 99 mm
Oct 11 mm
Nov 4 mm
Dec 7 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 Delhi Cantonment

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 6.7°C (44.1°F) 22.3°C (72.1°F) 0.2
February 9.7°C (49.5°F) 26.5°C (79.6°F) 0.0
March 15.3°C (59.5°F) 32.8°C (91°F) 0.0
April 21.6°C (70.9°F) 39°C (102.3°F) 0.0
May 26.9°C (80.4°F) 42.4°C (108.3°F) 0.0
June 29.4°C (84.9°F) 41.8°C (107.2°F) 0.0
July 28.3°C (82.9°F) 37.6°C (99.6°F) 0.0
August 26.2°C (79.2°F) 34.7°C (94.5°F) 0.0
September 23.8°C (74.8°F) 34.5°C (94°F) 0.0
October 19.2°C (66.5°F) 33.4°C (92°F) 0.0
November 13.7°C (56.7°F) 28.8°C (83.9°F) 0.0
December 8.8°C (47.8°F) 24.1°C (75.4°F) 0.0

For snapdragons, 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 snapdragons for Delhi Cantonment

  • July is the wettest month in the rainfall grid, averaging about 179 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 snapdragons

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

  • Frost tolerance does not make saturated or frozen soil suitable for planting. Wait until the bed can be worked without smearing or compacting it.
  • Harden off plants raised indoors: gradually expose them to outdoor light, wind and temperature before their final move into the bed.
  • 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.

Choose stem height and grow snapdragons in a suitable cool season

Use a bright position with rich, moist but drained soil. Avoid prolonged overhead watering and give tall plants support in exposed sites. Hot weather and drying can shorten the display, so plan the season accordingly.

Remove spent flower spikes where further branching and buds are desired, and inspect leaves for rust or other disease. Record the quality of usable stems and the timing of decline to improve next year's sowing choice.

What to record this season

Which planting period produced strong flower spikes before heat or rust reduced quality? Add the cultivar, sowing date and conditions to your growing record so you can compare next season.

Further reading: NC State Extension: Antirrhinum majus . 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 plant identity and cultivation. Its regional calendar months and hardiness observations do not validate the calculated dates for another location.

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

Why these dates

Use a bright position with rich, moist but drained soil. Avoid prolonged overhead watering and give tall plants support in exposed sites. Hot weather and drying can shorten the display, so plan the season accordingly.

Check the named variety and local forecast before exposing young growth. The catalog cold-damage figure is a reference, not a guarantee: plant age, acclimatisation, wind and the duration of a freeze affect damage.

This calendar uses frost-relative offsets as a starting point. Snapdragons are timed from 10 weeks before that frost for an indoor start, with planting out 2 weeks before it, and this page simply resolves those offsets against the frost date computed for Delhi Cantonment.

Delhi Cantonment is zone 10b, within the crop's general range. This is an initial cold-hardiness check; cultivar, exposure, drainage and unusual winters can still change the outcome.

See every crop timed for Delhi Cantonment →

Growing snapdragons in Delhi Cantonment

Can I grow snapdragons in Delhi Cantonment?

The calendar estimates a planting window, not a guarantee of success. July is the wettest month in the rainfall grid, averaging about 179 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 snapdragons in Delhi Cantonment?

Aim for 24 Dec - 21 Jan in an average year. If you would rather not gamble on the weather, wait until 30 Dec - 27 Jan - by then frost has finished in nine years out of ten.

When might snapdragons flower in Delhi Cantonment?

The estimated period is 24 Mar - 23 Apr, based on 90 to 120 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 snapdragons tolerate?

Check the named variety and local forecast before exposing young growth. The catalog cold-damage figure is a reference, not a guarantee: plant age, acclimatisation, wind and the duration of a freeze affect damage.