Fennel · Delhi, Delhi, India
When to plant fennel in Delhi
Main outdoor window
23 Dec - 14 Jan
A climate estimate. Check your soil, forecast and cultivar.
Timed from last spring frost
7 January
In Delhi, on your chosen risk.
Ready to pick
1 Jun - 31 Oct
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
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
23 Dec - 14 Jan
Two weeks before your last frost.
Harvest
1 Jun - 31 Oct
Fennel through the year
Against the frost risk in Delhi
Seasonal context
Rainfall and the growing season in 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.
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
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.
| Month | Average low | Average high | Frost days |
|---|---|---|---|
| January | 6.8°C (44.2°F)44.2°F (6.8°C) | 22.3°C (72.1°F)72.1°F (22.3°C) | 0.1 |
| February | 9.8°C (49.7°F)49.7°F (9.8°C) | 26.5°C (79.7°F)79.7°F (26.5°C) | 0.0 |
| March | 15.4°C (59.6°F)59.6°F (15.4°C) | 32.9°C (91.2°F)91.2°F (32.9°C) | 0.0 |
| April | 21.8°C (71.3°F)71.3°F (21.8°C) | 39.3°C (102.7°F)102.7°F (39.3°C) | 0.0 |
| May | 27°C (80.6°F)80.6°F (27°C) | 42.6°C (108.6°F)108.6°F (42.6°C) | 0.0 |
| June | 29.5°C (85°F)85°F (29.5°C) | 41.9°C (107.4°F)107.4°F (41.9°C) | 0.0 |
| July | 28°C (82.4°F)82.4°F (28°C) | 37°C (98.6°F)98.6°F (37°C) | 0.0 |
| August | 26.1°C (78.9°F)78.9°F (26.1°C) | 34°C (93.2°F)93.2°F (34°C) | 0.0 |
| September | 23.7°C (74.6°F)74.6°F (23.7°C) | 33.7°C (92.7°F)92.7°F (33.7°C) | 0.0 |
| October | 18.8°C (65.9°F)65.9°F (18.8°C) | 32.6°C (90.6°F)90.6°F (32.6°C) | 0.0 |
| November | 13.5°C (56.3°F)56.3°F (13.5°C) | 28.5°C (83.3°F)83.3°F (28.5°C) | 0.0 |
| December | 8.7°C (47.6°F)47.6°F (8.7°C) | 23.9°C (75.1°F)75.1°F (23.9°C) | 0.0 |
For fennel, 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 fennel for 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 fennel
Use the calendar to plan ahead, then check the conditions in your own garden.
- Measure the soil at sowing depth. Aim for at least 10°C (50°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.
- Check mature size, drainage and cultivar suitability before choosing a permanent position. A suitable planting window does not guarantee long-term survival or fruiting.
Grow herb fennel for foliage and seed, not a swollen base
Provide a sunny, drained site with room for the flowering stems. Place it where height and self-seeding will not overwhelm smaller crops. Established plants tolerate some dryness, but seedlings still need moisture to establish.
Remove spent heads before seed ripens if spread is unwanted. If seed is your crop, reserve labelled stems and collect them before they scatter. Fennel has escaped cultivation in some regions, so check local restrictions before allowing it to naturalise.
What to record this season
How much space did flowering stems occupy, and where did volunteer seedlings appear? Add the cultivar, sowing date and conditions to your growing record so you can compare next season.
Further reading: NC State Extension: Foeniculum vulgare . 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
Provide a sunny, drained site with room for the flowering stems. Place it where height and self-seeding will not overwhelm smaller crops. Established plants tolerate some dryness, but seedlings still need moisture to establish.
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. Fennel are timed for direct sowing 2 weeks before it, and this page simply resolves those offsets against the frost date computed for Delhi.
Delhi sits in zone 10b, which is above the catalog range. Confirm the exact cultivar locally; a zone number alone cannot measure summer heat or winter chill. The calculated dates do not confirm that this crop is suitable here. Check cultivar requirements and local growing experience before planting.
The general establishment guide is around year 1, under suitable conditions. This is not a prediction for this location; cultivar, winter conditions and care determine whether it crops reliably.
Nearby
Fennel in places close by
Growing fennel in Delhi
Can I grow fennel in 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 fennel in Delhi?
Aim for 23 Dec - 14 Jan in an average year. If you would rather not gamble on the weather, wait until 24 Dec - 14 Jan - by then frost has finished in nine years out of ten.
When might fennel be ready to harvest in Delhi?
The estimated period is 1 Jun - 31 Oct, 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 fennel 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.