Crocus · Dhaka, Dhaka Division, Bangladesh
When to plant crocuses in Dhaka
Main outdoor window
1-15 Nov
A climate estimate. Check your soil, forecast and cultivar.
Timed from temperature
November to February
No frost on record in Dhaka, so the months this crop fits in our temperature model set the timing. This does not confirm local suitability.
First autumn frost
no autumn frost
The far end of the outdoor season.
Temperature-based estimate. Dhaka has no dependable frost season.
These dates do not account for rain, humidity or waterlogging. Check the local growing season,
especially in monsoon climates, before treating this window as a planting recommendation.
Rainfall check: the wettest month is July (about 437 mm), and the driest is
January (about 9 mm).
Compare all months and check the limitations before choosing the season.
Step by step in Dhaka
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.
Plant the corms
1-15 Nov
The opening weeks of the stretch when the average temperature suits this crop, which here runs from November to February. There is no frost to work around, so heat is what sets the timing.
Crocuses through the year
Against the monthly temperature record in Dhaka
Seasonal context
Rainfall and the growing season in Dhaka
July has the highest average precipitation (437 mm); January has the lowest (9 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.
Frost-free does not mean every month is suitable. In tropical and monsoon climates, rainfall, heat, drainage and the cultivar can set the practical growing season. Match the temperature window to these conditions and check advice from a local grower before buying planting material.
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 Dhaka
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 | 12°C (53.6°F)53.6°F (12°C) | 24.8°C (76.7°F)76.7°F (24.8°C) | 0.0 |
| February | 15.4°C (59.7°F)59.7°F (15.4°C) | 29°C (84.2°F)84.2°F (29°C) | 0.0 |
| March | 20.3°C (68.6°F)68.6°F (20.3°C) | 34°C (93.2°F)93.2°F (34°C) | 0.0 |
| April | 24.4°C (75.8°F)75.8°F (24.4°C) | 36°C (96.7°F)96.7°F (36°C) | 0.0 |
| May | 26°C (78.7°F)78.7°F (26°C) | 34.1°C (93.3°F)93.3°F (34.1°C) | 0.0 |
| June | 26.6°C (79.8°F)79.8°F (26.6°C) | 31.7°C (89°F)89°F (31.7°C) | 0.0 |
| July | 26.4°C (79.5°F)79.5°F (26.4°C) | 31.1°C (88°F)88°F (31.1°C) | 0.0 |
| August | 26.1°C (79°F)79°F (26.1°C) | 30.9°C (87.6°F)87.6°F (30.9°C) | 0.0 |
| September | 25.6°C (78.1°F)78.1°F (25.6°C) | 30.5°C (87°F)87°F (30.5°C) | 0.0 |
| October | 23.3°C (73.9°F)73.9°F (23.3°C) | 29.9°C (85.9°F)85.9°F (29.9°C) | 0.0 |
| November | 18.2°C (64.8°F)64.8°F (18.2°C) | 27.8°C (82°F)82°F (27.8°C) | 0.0 |
| December | 13.9°C (56.9°F)56.9°F (13.9°C) | 25°C (77°F)77°F (25°C) | 0.0 |
For crocuses, also check drainage, sunlight and cultivar requirements. See the rainfall context above; humidity, irrigation and local pest pressure are not calculated.
The catalog flowering or harvest months are not verified for this frost-free climate. Ask a local grower about the cultivar’s seasonal cycle.
Local growing check
Before choosing crocuses for Dhaka
- July is the wettest month in the rainfall grid, averaging about 437 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 crocuses
Use the calendar to plan ahead, then check the conditions in your own garden.
- In a frost-free climate, check seasonal rainfall, humidity and heat before planting. A month with suitable average temperatures can still be too wet, dry or hot for this crop.
- 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.
Plan a spring crocus patch that can finish its leaf growth
Provide sun or light shade and sharp drainage. Keep moisture available during active growth, while avoiding heavy waterlogged soil. Newly planted corms may need protection from digging rodents without using traps or barriers that injure wildlife.
Mark the area during dormancy and divide congested patches when appropriate. Do not confuse ornamental spring crocus with saffron or with poisonous Colchicum sold as autumn crocus. A common name alone is not an edible-plant identification.
What to record this season
Did corms remain in place and return with flowers after their leaves completed growth? Add the cultivar, sowing date and conditions to your growing record so you can compare next season.
Further reading: Crocus (Common Crocus, Dutch Crocus, Dutch Crows, Species Crocuses) | North Carolina Extension Gardener Plant Toolbox . 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. This reference covers the broader plant group; confirm the named form and its specific requirements with the supplier.
How the dates are calculated and their limits · Keep a growing record · Report a local discrepancy
Why these dates
Frost-relative timing needs a dependable seasonal frost date. Dhaka has no such date in this record, so this page compares monthly temperatures with the crop's model range instead. Local wet and dry seasons, day length and cultivar requirements still need a separate check.
The model uses a growing-temperature band for crocuses between 5°C (41°F)41°F (5°C) and 25°C (77°F)77°F (25°C) — and in Dhaka that is November to February, 4 months of the year, taken from this location's own monthly averages. The planting window begins near the start of this period.
Dhaka sits in zone 11b, 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.
Also in Dhaka
Other flowers to time
Growing crocuses in Dhaka
Can I grow crocuses in Dhaka?
The calendar estimates a planting window, not a guarantee of success. July is the wettest month in the rainfall grid, averaging about 437 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 crocuses in Dhaka?
The temperature-based window is 1-15 Nov. Dhaka has no dependable frost season: November to February have monthly averages inside the model range for crocuses. Check seasonal rainfall, heat and cultivar requirements before planting.
How much frost will crocuses 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.