Planning polyhouse farming in Purwa? Purwa is a small town in Unnao district, Uttar Pradesh, home to about 22,000 people (GeoNames)[1][2], about 420 km from Delhi. This guide works from Purwa'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 Purwa
May is the hottest month in Purwa, with average daily highs of about 43°C. January has the coolest nights, averaging 8°C.[3] The area gets about 845 mm of rain a year, most of it in June to September, peaking in July at about 258 mm. Average humidity stays at 75% or more in August to September, which raises the risk of leaf disease and slows evaporative cooling. Purwa sits about 129 m above sea level.[2] On the Köppen–Geiger climate map, Purwa falls in the hot semi-arid zone (BSh).[4]
Purwa climate by month
Month
Avg high (°C)
Avg low (°C)
Humidity (%)
Rain (mm)
Jan
22.7
7.5
46
17
Feb
27.5
11.0
41
17
Mar
34.3
16.6
30
11
Apr
40.6
23.6
21
9
May
43.4
28.5
23
23
Jun
41.5
30.4
40
106
Jul
34.8
27.4
72
258
Aug
32.9
25.9
80
216
Sep
32.4
24.1
78
148
Oct
31.6
19.4
63
30
Nov
27.7
13.7
53
4
Dec
23.5
9.0
49
6
Area averages (a grid cell of about 50 km) for 2001–2025, from NASA POWER, centred on Purwa. Rainfall and night temperatures at your plot can differ, especially near hills and the coast.[3]
Advantages of protected cultivation in Purwa
1
Year-round crops
A polyhouse stretches the season: in Purwa cucumber can be grown for about 8 months a year under cover, longer than in the open field.
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 July's 258 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 September), so you spray less often.
5
Subsidy eligible
Polyhouse, shade net and nethouse projects in Uttar Pradesh can apply for Mission for Integrated Development of Horticulture (MIDH) assistance through the state horticulture department.[5]
Which polyhouse suits Purwa?
For polyhouse farming in Purwa, the structure decides which months you can crop and what it costs to run. The heat in Purwa comes with dry air. In April to June, average highs reach 43°C while average humidity is only about 28%. In that dry air, wet pads can bring a 43°C May 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. For vine crops such as capsicum and cucumber, a naturally ventilated polyhouse with a shade screen works from November and costs less to run.
Plan for heavy rain in July (about 258 mm): raise the plinth, size the gutters for that month and keep drains away from the nutrient tank. Sunlight peaks in May at about 6.7 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 February and October to November, when it is mild and fairly dry.
Crops for Purwa
Based on Purwa's climate, the crops with the longest growing windows are cucumber (8 months), chilli pepper (7 months) and brinjal (7 months). Cucumber fits March to May and July to November with Fan & Pad cooling. These are the crops we would plan first for polyhouse farming in Purwa.
Months each crop suits in Purwa
Crop
Naturally ventilated polyhouse
With Fan & Pad cooling
Capsicum
Nov
Mar–Apr and Aug–Nov
Tomato
Feb and Nov
Feb–Apr and Sep–Nov
Cucumber
Aug–Nov
Mar–May and Jul–Nov
Chilli pepper
Aug–Nov
Mar–Apr and Jul–Nov
Brinjal
Aug–Nov
Mar–Apr and Jul–Nov
Lettuce
Nov–Feb
Oct–Apr
Broccoli
Dec–Jan
Nov–Mar
Strawberry
Dec–Jan
Nov–Feb
Rose
Feb and Nov
Feb–Mar and Oct–Nov
Gerbera
Feb and Nov
Feb–Mar and Oct–Nov
Carnation
Dec–Jan
Nov–Mar
Chrysanthemum
Feb and Nov
Feb–Mar and Oct–Nov
Anthurium
Difficult
Mar–Apr and Jul–Oct
Orchids
Difficult
Mar–Apr and Jul–Oct
Lilium
Dec–Jan
Nov–Mar
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.
₹5,474Spending per person per month, urban Uttar Pradesh, 2023–24[6]
420 kmto Delhi, the nearest metro (straight line)
Urban households in Uttar Pradesh spent an average of ₹5,474 per person per month in 2023–24, below the all-India urban average of ₹7,078.[6] Local demand in Purwa may be small for exotic greens, so plan where the rest of the harvest goes. Unnao, about 30 km away, is the nearest larger market on our list.
Polyhouse farming in Purwa with Kryzen
We have built 6 projects in Uttar Pradesh so far (see our project map (opens in a new tab)). Purwa is about 920 km in a straight line from our Chhatrapati Sambhajinagar warehouse, our nearest site.
Towns near Purwa
We also plan and build farms in these towns near Purwa:
Map: LGD 2024 boundaries via bharatlas, CC BY 4.0. For illustration only.
Polyhouse farming in Purwa: FAQs
Can a polyhouse farm run all year in Purwa?
Yes, with the right structure. For Purwa we would plan a Fan & Pad polyhouse for leafy greens. Even then, lettuce is hard to grow in May to September, so plan another crop for those months.
Which polyhouse is best for Purwa?
With May highs of about 43°C and 23% average humidity in that month, we would start with a Fan & Pad polyhouse for leafy greens.
Which crops should I grow in a polyhouse in Purwa?
Going by the monthly climate, cucumber, chilli pepper and brinjal have the longest growing windows. Confirm prices and volumes with buyers before you plant.
Is polyhouse farming profitable in Purwa?
It can be, if the crop, the structure and the buyers match. In Purwa, 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 Purwa?
Yes. Our nearest site is our Chhatrapati Sambhajinagar warehouse, about 920 km away, and we have built 6 projects in Uttar Pradesh.
Is there a subsidy for polyhouse or hydroponic farms in Uttar Pradesh?
Yes. Protected cultivation projects in Uttar Pradesh 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 Purwa 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.
