Planning polyhouse farming in Thiruvarur? Thiruvarur is a town in Tiruvarur district, Tamil Nadu, home to about 59,000 people (GeoNames)[1][2], about 270 km from Chennai. This guide works from Thiruvarur's own monthly climate to suggest the protected structure, the crops to start with, and the months each crop is likely to do well.
Climate for polyhouse farming in Thiruvarur
April is the hottest month in Thiruvarur, with average daily highs of about 37°C. January has the coolest nights, averaging 20°C.[3] The area gets about 1,012 mm of rain a year, most of it in September to December, peaking in November at about 250 mm. Average humidity stays at 75% or more in October to January, which raises the risk of leaf disease and slows evaporative cooling. Thiruvarur sits about 3 m above sea level.[2] On the Köppen–Geiger climate map, Thiruvarur falls in the tropical savanna (dry winter) zone (Aw).[4]
Thiruvarur climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
28.9
19.8
79
16
Feb
31.8
20.4
71
10
Mar
35.2
22.8
65
19
Apr
36.5
25.6
63
33
May
35.9
26.5
64
74
Jun
35.3
25.8
61
42
Jul
34.9
25.5
61
60
Aug
34.4
25.0
65
91
Sep
33.3
24.5
71
106
Oct
31.2
24.0
78
195
Nov
28.6
22.6
86
250
Dec
27.9
20.9
85
116
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Thiruvarur. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[3]
Advantages of protected cultivation in Thiruvarur
1
ವರ್ಷವಿಡೀ ಬೆಳೆಗಳು
Under cover, capsicum can be grown for the whole year in Thiruvarur, so you can supply buyers every week instead of one open-field season.
2
ಉತ್ತಮ ಇಳುವರಿ ಮತ್ತು ಬೆಲೆ
Plants grow without rain, hail and wind damage, so yields are higher and more even, and clean, graded produce sells at a better price, especially off-season.
3
ಕಡಿಮೆ ನೀರು
Drip irrigation under cover uses less water than flood irrigation, and the roof keeps November's 250 mm of rain off the crop and the soil.
4
Less pesticides
Insect net on vents and doors keeps out most pests, and controlled ventilation helps with leaf disease in the humid months (October to January), so you spray less often.
5
ಸಬ್ಸಿಡಿಗೆ ಅರ್ಹ
Polyhouse, shade net and nethouse projects in Tamil Nadu can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department.[5]
Which polyhouse suits Thiruvarur?
For polyhouse farming in Thiruvarur, the structure decides which months you can crop and what it costs to run. Average highs stay at 33°C or more in March to September, with moderate humidity of about 64%. In that dry air, wet pads can bring a 37°C April afternoon down to roughly 32°C inside a Fan & Pad polyhouse, which keeps herbs and vine crops going; lettuce will still struggle in the hottest weeks. Capsicum, cucumber and tomato do well in a naturally ventilated polyhouse with a shade screen. If you want one structure, decide by crop: greens all year point to Fan & Pad; vine crops point to a naturally ventilated house.
Plan for heavy rain in November (about 250 mm): raise the plinth, size the gutters for that month and keep drains away from the nutrient tank. Sunlight peaks in March at about 6.3 kWh per m² a day, so add a shade screen for leafy greens in the brightest months.
Crops for Thiruvarur
Based on Thiruvarur's climate, the crops with the longest growing windows are capsicum (all year), cucumber (all year) and chilli pepper (all year). Capsicum fits all year with Fan & Pad cooling. Lilium and carnation are hard to time here, so we would leave them out of the first season. These are the crops we would plan first for polyhouse farming in Thiruvarur.
Months each crop suits in Thiruvarur
ಬೆಳೆ
ನೈಸರ್ಗಿಕ ವಾತಾಯನದ ಪಾಲಿಹೌಸ್
With Fan & Pad cooling
ಕ್ಯಾಪ್ಸಿಕಂ
Nov–Jan
All year
ಟೊಮೆಟೊ
Nov–Jan
Jul–Mar
ಸೌತೆಕಾಯಿ
Sep–Feb
All year
Chilli pepper
Oct–Feb
All year
ಬದನೆ
Oct–Feb
All year
ಲೆಟ್ಯೂಸ್
Dec
Oct–Feb
ಬ್ರೊಕೊಲಿ
Difficult
Difficult
ಸ್ಟ್ರಾಬೆರಿ
Difficult
Difficult
ಗುಲಾಬಿ
Dec
Dec–Feb
ಜರ್ಬೆರಾ
Dec
Nov–Feb
ಕಾರ್ನೇಷನ್
Difficult
Difficult
ಸೇವಂತಿಗೆ
Dec
Dec–Feb
ಆಂಥೂರಿಯಂ
Nov–Jan
May–Mar
ಆರ್ಕಿಡ್ಗಳು
Nov–Jan
May–Mar
ಲಿಲಿಯಂ
Difficult
Difficult
Kryzen planning estimate from the monthly averages above and each crop's usual day and night temperature range. Variety, soil or substrate temperature and shading change the result, so confirm with a trial.
₹8,325Spending per person per month, urban Tamil Nadu, 2023–24[6]
270 kmto Chennai, the nearest metro (straight line)
Urban households in Tamil Nadu spent an average of ₹8,325 per person per month in 2023–24, above the all-India urban average of ₹7,078.[6] Local demand in Thiruvarur may be small for exotic greens, so plan where the rest of the harvest goes. Kumbakonam, about 30 km away, is the nearest larger market on our list.
Polyhouse farming in Thiruvarur with Kryzen
We have built 9 projects in Tamil Nadu so far (see our project map (ಹೊಸ ಟ್ಯಾಬ್ನಲ್ಲಿ ತೆರೆಯುತ್ತದೆ)). Thiruvarur is about 1,010 km in a straight line from our factory and master warehouse at Degaon, Wai (Satara), our nearest site.
Towns near Thiruvarur
We also plan and build farms in these towns near Thiruvarur:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Thiruvarur: FAQs
Can a polyhouse farm run all year in Thiruvarur?
Yes, with the right structure. For Thiruvarur we would plan Fan & Pad cooling for leafy greens and a naturally ventilated polyhouse for vine crops. Even then, lettuce is hard to grow in March to September, so plan another crop for those months.
Which polyhouse is best for Thiruvarur?
With April highs of about 37°C and 63% average humidity in that month, we would start with Fan & Pad cooling for leafy greens and a naturally ventilated polyhouse for vine crops.
Which crops should I grow in a polyhouse in Thiruvarur?
Going by the monthly climate, capsicum, cucumber and chilli pepper have the longest growing windows. Confirm prices and volumes with buyers before you plant.
Is polyhouse farming profitable in Thiruvarur?
It can be, if the crop, the structure and the buyers match. In Thiruvarur, capsicum and cucumber have the longest seasons under cover. Confirm prices and volumes with buyers first; our Detailed Project Report works out the cost, yield and returns for your plot.
Does Kryzen build polyhouses in Thiruvarur?
Yes. Our nearest site is our factory and master warehouse at Degaon, Wai (Satara), about 1,010 km away, and we have built 9 projects in Tamil Nadu.
Is there a subsidy for polyhouse or hydroponic farms in Tamil Nadu?
Yes. Protected cultivation projects in Tamil Nadu can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department. Check the current rate and area limit when you apply.
Discuss your Thiruvarur farm project
Share your plot location, water test and crop targets. We will suggest the right structure and growing system, and send an itemised quotation.
A computer engineer turned hydroponic farmer from a multigenerational farming family in Satara. Sudhir founded Kryzen in 2019, and the team has since built 350+ protected and hydroponic farms across India.
