Planning polyhouse farming in Pollachi? Pollachi is a town in Coimbatore district, Tamil Nadu, home to about 90,000 people (GeoNames)[1][2], about 260 km from Bengaluru. We have used the monthly climate for Pollachi to plan a structure, a growing system and a crop calendar, so you can compare them with your own plot and buyers.
Climate for polyhouse farming in Pollachi
March is the hottest month in Pollachi, with average daily highs of about 36°C. January has the coolest nights, averaging 17°C.[3] The area gets about 1,558 mm of rain a year, most of it in May to November, peaking in October at about 249 mm. Average humidity stays at 75% or more in May to December, which raises the risk of leaf disease and slows evaporative cooling. Pollachi sits about 292 m above sea level.[2] On the Köppen–Geiger climate map, Pollachi falls in the tropical savanna (dry winter) zone (Aw).[4]
Pollachi climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
30.8
17.4
70
8
Feb
34.0
18.9
59
15
Mar
35.9
21.4
58
37
Apr
35.0
23.0
68
79
May
31.4
23.0
80
162
Jun
28.4
22.3
88
243
Jul
27.4
21.7
89
227
Aug
27.5
21.5
90
194
Sep
28.1
21.3
89
172
Oct
28.5
21.2
88
249
Nov
28.2
20.1
86
140
Dec
28.5
18.3
81
32
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Pollachi, adjusted for the town's elevation[5]. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[3]
Advantages of protected cultivation in Pollachi
1
वर्षभर पिके
Under cover, capsicum can be grown for the whole year in Pollachi, so you can supply buyers every week instead of one open-field season.
2
चांगले उत्पादन आणि भाव
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
कमी पाणी
Drip irrigation under cover uses less water than flood irrigation, and the roof keeps October's 249 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 (May to December), so you spray less often.
5
अनुदानास पात्र
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.[6]
Which polyhouse suits Pollachi?
For polyhouse farming in Pollachi, the structure decides which months you can crop and what it costs to run. Average highs stay at 33°C or more in February to April, with moderate humidity of about 62%. In that dry air, wet pads can bring a 36°C March afternoon down to roughly 31°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 October (about 249 mm): raise the plinth, size the gutters for that month and keep drains away from the nutrient tank. Sunlight peaks in March at about 6.4 kWh per m² a day, so add a shade screen for leafy greens in the brightest months. A nethouse, the lowest-cost option, can grow hardy crops in December to February, when it is mild and fairly dry.
Crops for Pollachi
Based on Pollachi's climate, the crops with the longest growing windows are capsicum (all year), tomato (all year) and cucumber (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 Pollachi.
Months each crop suits in Pollachi
पीक
नॅचरली व्हेंटिलेटेड पॉलीहाउस
With Fan & Pad cooling
ढोबळी मिरची
Jun–Jan
All year
टोमॅटो
Jun–Jan
All year
काकडी
May–Feb
All year
Chilli pepper
May–Jan
All year
वांगी
May–Jan
All year
लेट्यूस
Jul–Aug
May–Feb
ब्रोकोली
Difficult
Difficult
स्ट्रॉबेरी
Difficult
Difficult
गुलाब
Aug
Aug–Feb
जरबेरा
Jul–Aug
May–Feb
कार्नेशन
Difficult
Difficult
शेवंती
Aug
Aug–Feb
अँथुरियम
Jun–Dec
All year
ऑर्किड
Jun–Dec
All year
लिलियम
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[7]
260 kmto Bengaluru, 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.[7] Local demand in Pollachi may be small for exotic greens, so plan where the rest of the harvest goes. Coimbatore, about 40 km away, is the nearest larger market on our list.
Polyhouse farming in Pollachi with Kryzen
We have built 9 projects in Tamil Nadu so far (see our project map (नवीन टॅबमध्ये उघडते)). Pollachi is about 880 km in a straight line from our factory and master warehouse at Degaon, Wai (Satara), our nearest site.
Towns near Pollachi
We also plan and build farms in these towns near Pollachi:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Pollachi: FAQs
Can a polyhouse farm run all year in Pollachi?
Yes, with the right structure. For Pollachi 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 April, so plan another crop for those months.
Which polyhouse is best for Pollachi?
With March highs of about 36°C and 58% 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 Pollachi?
Going by the monthly climate, capsicum, tomato and cucumber have the longest growing windows. Confirm prices and volumes with buyers before you plant.
Is polyhouse farming profitable in Pollachi?
It can be, if the crop, the structure and the buyers match. In Pollachi, capsicum and tomato 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 Pollachi?
Yes. Our nearest site is our factory and master warehouse at Degaon, Wai (Satara), about 880 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 Pollachi 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.
