Planning polyhouse farming in Thodupuzha? Thodupuzha is a town in Idukki district, Kerala, home to about 52,000 people (GeoNames)[1][2], about 360 km from Bengaluru. Below we use the town's monthly temperatures, humidity and rainfall to work out which structure fits, which crops to grow and in which months, before you spend on construction.
Climate for polyhouse farming in Thodupuzha
March is the hottest month in Thodupuzha, with average daily highs of about 36°C. January has the coolest nights, averaging 19°C.[3] The area gets about 2,040 mm of rain a year, most of it in April to November, peaking in June at about 330 mm. Average humidity stays at 75% or more in May to December, which raises the risk of leaf disease and slows evaporative cooling. Thodupuzha sits about 40 m above sea level.[2] On the Köppen–Geiger climate map, Thodupuzha falls in the tropical monsoon zone (Am).[4]
Thodupuzha climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
31.5
18.9
74
12
Feb
34.6
19.9
65
22
Mar
36.4
22.0
65
48
Apr
35.4
23.7
74
106
May
32.2
24.0
84
221
Jun
29.4
23.4
90
330
Jul
28.6
22.8
92
297
Aug
28.6
22.6
92
250
Sep
29.3
22.5
91
228
Oct
29.8
22.4
90
318
Nov
29.7
21.5
88
169
Dec
29.7
20.0
83
39
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Thodupuzha, 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 Thodupuzha
1
ஆண்டு முழுவதும் பயிர்கள்
A polyhouse stretches the season: in Thodupuzha cucumber can be grown for about 9 months a year under cover, longer than in the open field.
2
சிறந்த விளைச்சலும் விலையும்
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
குறைந்த நீர்
Drip irrigation under cover uses less water than flood irrigation, and the roof keeps June's 330 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
மானியத்திற்குத் தகுதியானது
Polyhouse, shade net and nethouse projects in Kerala can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department.[6]
Which polyhouse suits Thodupuzha?
For polyhouse farming in Thodupuzha, the structure decides which months you can crop and what it costs to run. In Thodupuzha the heat comes with humidity: during February to April average humidity is about 68%. Wet pads cool much less in humid air: on a typical March afternoon they would only bring 36°C down to about 32°C. So we usually start with a tall naturally ventilated polyhouse with wide roof vents, insect net and a shade screen. A Fan & Pad polyhouse still makes sense if buyers need lettuce through the hottest months, but expect a smaller temperature drop than in dry inland towns.
Plan for heavy rain in June (about 330 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.
Crops for Thodupuzha
Based on Thodupuzha's climate, the crops with the longest growing windows are cucumber (9 months), chilli pepper (9 months) and brinjal (9 months). Cucumber fits May to January in a naturally ventilated polyhouse. Lilium and chrysanthemum 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 Thodupuzha.
Months each crop suits in Thodupuzha
பயிர்
இயற்கை காற்றோட்ட பாலிஹவுஸ்
With Fan & Pad cooling
குடைமிளகாய்
Jun–Dec
All year
தக்காளி
Jun–Dec
All year
வெள்ளரி
May–Jan
All year
Chilli pepper
May–Jan
All year
கத்தரி
May–Jan
All year
லெட்யூஸ்
Difficult
Jun–Jan
ப்ரோக்கோலி
Difficult
Difficult
ஸ்ட்ராபெர்ரி
Difficult
Difficult
ரோஜா
Difficult
Nov–Jan
ஜெர்பெரா
Difficult
Jun–Jan
கார்னேஷன்
Difficult
Difficult
சாமந்தி
Difficult
Nov–Jan
ஆந்தூரியம்
Jun–Dec
May–Feb
ஆர்க்கிட்
Jun–Dec
May–Feb
லில்லியம்
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.
₹7,834Spending per person per month, urban Kerala, 2023–24[7]
360 kmto Bengaluru, the nearest metro (straight line)
Urban households in Kerala spent an average of ₹7,834 per person per month in 2023–24, above the all-India urban average of ₹7,078.[7] Local demand in Thodupuzha may be small for exotic greens, so plan where the rest of the harvest goes.
Polyhouse farming in Thodupuzha with Kryzen
Thodupuzha is about 950 km in a straight line from our factory and master warehouse at Degaon, Wai (Satara), our nearest site.
Towns near Thodupuzha
We also plan and build farms in these towns near Thodupuzha:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Thodupuzha: FAQs
Can a polyhouse farm run all year in Thodupuzha?
Yes, with the right structure. For Thodupuzha we would plan a tall naturally ventilated polyhouse with wide vents and insect net. Even then, lettuce is hard to grow in February to May, so plan another crop for those months.
Which polyhouse is best for Thodupuzha?
With March highs of about 36°C and 65% average humidity in that month, we would start with a tall naturally ventilated polyhouse with wide vents and insect net.
Which crops should I grow in a polyhouse in Thodupuzha?
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 Thodupuzha?
It can be, if the crop, the structure and the buyers match. In Thodupuzha, cucumber and chilli pepper 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 Thodupuzha?
Yes. Our nearest site is our factory and master warehouse at Degaon, Wai (Satara), about 950 km away.
Is there a subsidy for polyhouse or hydroponic farms in Kerala?
Yes. Protected cultivation projects in Kerala 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 Thodupuzha 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.
