Planning polyhouse farming in Hosur? Hosur is a mid-sized city in Krishnagiri district, Tamil Nadu, home to about 2.3 lakh people (GeoNames)[1][2], about 40 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 Hosur
April is the hottest month in Hosur, with average daily highs of about 35°C. January has the coolest nights, averaging 14°C.[3] The area gets about 897 mm of rain a year. The wettest months are May and August to October, peaking in October at about 166 mm. Average humidity stays at 75% or more in August to December, which raises the risk of leaf disease and slows evaporative cooling. Hosur sits about 879 m above sea level.[2] On the Köppen–Geiger climate map, Hosur falls in the tropical savanna (dry winter) zone (Aw).[4]
Hosur climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
27.2
13.5
69
5
Feb
30.6
15.0
57
6
Mar
33.8
18.2
49
18
Apr
34.8
21.1
52
52
May
32.6
21.5
63
103
Jun
29.6
19.9
70
68
Jul
28.7
19.3
72
92
Aug
28.4
19.0
75
112
Sep
27.8
18.9
78
148
Oct
26.5
18.4
81
166
Nov
25.1
16.3
83
94
Dec
25.2
14.1
78
33
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Hosur, 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 Hosur
1
Year-round crops
Under cover, cucumber can be grown for 11 months a year in Hosur, so you can supply buyers every week instead of one open-field season.
2
Better yield and price
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
Less water
Drip irrigation under cover uses less water than flood irrigation, and the roof keeps October's 166 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 (August to December), so you spray less often.
5
Subsidy eligible
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 Hosur?
For polyhouse farming in Hosur, the structure decides which months you can crop and what it costs to run. With average highs between 25°C and 35°C through the year, Hosur suits a naturally ventilated polyhouse for most crops. Fan & Pad cooling is rarely needed; spend the budget on good ventilation, insect net and a shade screen. Sunlight peaks in March at about 6.6 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 November to March and June to July, when it is mild and fairly dry.
Crops for Hosur
Based on Hosur's climate, the crops with the longest growing windows are cucumber (11 months), chilli pepper (10 months) and brinjal (10 months). Cucumber fits May to March in a naturally ventilated polyhouse. 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 Hosur.
Months each crop suits in Hosur
Crop
Naturally ventilated polyhouse
With Fan & Pad cooling
Capsicum
Jun–Feb
All year
Tomato
Jun–Feb
All year
Cucumber
May–Mar
All year
Chilli pepper
May–Feb
All year
Brinjal
May–Feb
All year
Lettuce
Sep–Jan
All year
Broccoli
Difficult
Nov–Jan
Strawberry
Difficult
Dec–Feb
Rose
Sep–Jan
All year
Gerbera
Sep–Jan
All year
Carnation
Difficult
Nov–Feb
Chrysanthemum
Sep–Jan
All year
Anthurium
Jun–Nov
Mar–Nov
Orchids
Jun–Nov
Mar–Nov
Lilium
Difficult
Nov–Jan
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]
40 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] Hosur is large enough for steady local sales to restaurants, hotels and fruit-and-vegetable retailers. Start with a farm size that matches the orders you can confirm. Bengaluru, about 40 km away, is the nearest larger market on our list. For premium vegetable and flower buyers, Bengaluru is within a day's delivery, about 40 km away.
Polyhouse farming in Hosur with Kryzen
We have built 9 projects in Tamil Nadu so far (see our project map (opens in a new tab)). Hosur is about 720 km in a straight line from our factory and master warehouse at Degaon, Wai (Satara), our nearest site.
Towns near Hosur
We also plan and build farms in these towns near Hosur:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Hosur: FAQs
Can a polyhouse farm run all year in Hosur?
Yes, with the right structure. For Hosur we would plan a naturally ventilated polyhouse.
Which polyhouse is best for Hosur?
With April highs of about 35°C and 52% average humidity in that month, we would start with a naturally ventilated polyhouse.
Which crops should I grow in a polyhouse in Hosur?
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 Hosur?
It can be, if the crop, the structure and the buyers match. In Hosur, 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 Hosur?
Yes. Our nearest site is our factory and master warehouse at Degaon, Wai (Satara), about 720 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 Hosur 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.
