Crops · Flowers · Protected cultivation
Marigold cultivation in polyhouse and hydroponics
Grow bright marigold (genda) under a nethouse or polyhouse, in cocopeat troughs or bags fed by drip. Even, clean flowers timed for festivals and weddings, with a farm designed, built and supported by Kryzen.
First flowers in 50–60 days
Picking for 2–3 months
Exact drip feeding
Why protected cultivation
Can marigold be grown in a polyhouse?
Quick answer
Yes. Marigold grows well under a nethouse or polyhouse in cocopeat troughs or bags with drip. Seedlings flower about 50–60 days after planting, and flowers are picked every few days for 2–3 months.
A nethouse or polyhouse keeps heavy rain off, which rots marigold flowers. Insect net keeps out mites and thrips, and planting on a timetable gives flowers for festival weeks, when prices are highest.
| Point |  |  |  |
|---|---|---|---|
| Season | One or two seasons | Longer season | Crops timed for festivals all year |
| Harvest | Picking for 1–2 months | Picking for 2–3 months | Picking for 2–3 months, timed for festivals |
| Flower quality | Rain-rotted, uneven flowers | Cleaner flowers | Bright, even, clean flowers |
| Pests | Mites, thrips and caterpillars | Insect net and traps keep pressure low | Insect net and traps keep pressure low |
| Soil diseases | Wilt and root rot build up in soil | Still a risk; soil disease builds up over cycles | None; clean cocopeat |
| Water and fertiliser | Flood irrigation; much is lost | Drip into soil; some is lost | Exact drip doses to every plant |
| Revenue per acre per cycle | ₹1–2 lakh | ₹2–5 lakh | ₹5–9 lakh |
| Setup cost | Low | Medium | Highest; see your quotation and subsidy |
Expected revenue
How much revenue to expect per acre, per cycle
Expected sales from one acre of marigold for one crop cycle, and the risks you have to fight with each way of growing.
Open field
₹1–2 lakh
per acre, per crop cycle
Seasonal crop in soil, exposed to rain, heat and pests.
Risks11 risks to fight
- Insect attack
- Climate attack
- High cost of fertiliser
- High cost of water
- High cost of labour
- Cost of pesticides
- Cost of growth boosters
- Cost of land preparation
- Mulching paper
- Uneven quality
- Unpredictable quantity
Polyhouse + soil-based growing
₹2–5 lakh
per acre, per crop cycle
Protected crop planted in soil beds with drip irrigation.
Risks5 risks to fight
- Insect attack (avoided)
- Climate attack (avoided)
- High cost of fertiliser (avoided)
- High cost of water (avoided)
- High cost of labour
- Cost of pesticides
- Cost of growth boosters
- Cost of land preparation
- Mulching paper
- Uneven quality (avoided)
- Unpredictable quantity (avoided)
Polyhouse + hydroponics
₹5–9 lakh
per acre, per crop cycle
Protected crop in cocopeat with drip fertigation.
RisksNone of these risks
- Insect attack (avoided)
- Climate attack (avoided)
- High cost of fertiliser (avoided)
- High cost of water (avoided)
- High cost of labour (avoided)
- Cost of pesticides (avoided)
- Cost of growth boosters (avoided)
- Cost of land preparation (avoided)
- Mulching paper (avoided)
- Uneven quality (avoided)
- Unpredictable quantity (avoided)
Struck-through risks are ones that protected cultivation takes away. Revenue depends on variety, season, market price and how well the crop is managed. Our team prepares a crop projection for your farm before you build.
Where it grows
Best growing systems for marigold
Marigold is a bushy annual. It grows in cocopeat troughs or grow bags with drip.
Most usedTrough
Cocopeat troughs with drip for row planting.
Cocopeat grow bags
Cocopeat grow bags for smaller plantings.
Inside the right polyhouse
What to plant
Types of marigold grown in polyhouses
African marigold has large orange and yellow flowers for garlands; French marigold is smaller and bushier.
Marigold (genda)
Large orange and yellow flowers for garlands, festivals, temples and weddings.
Climate and feeding
Ideal growing conditions for marigold
A polyhouse lets you hold these ranges for most of the year. Vents, shade nets, foggers or fan and pad cooling keep heat in check, and drip fertigation sets the feed. Values are from the Kryzen Plant Wiki.
The Kryzen Plant Wiki on alpha.kryzen.com, prepared by an experienced agronomist with more than 35 years of work and hands-on experience across 100+ crop cycles. See the Agronomy Wiki.
| Factor | Ideal range for marigold |
|---|---|
| Season | All year; time planting for festivals |
| Growing temperature | 18–30 °C |
| Relative humidity | 50–70% |
| Feed TDS | About 1,000 ppm |
| Feed pH | 6.0–7.0 |
| Plant density | About 4–6 plants per m² |
| Pinching | Pinch the tip once to make plants bushy |
| Growing system | Cocopeat troughs or grow bags with drip |
Crop cycle
From seedling to last harvest
One marigold crop runs about 4–5 months from nursery to the last picking.
- 01
25–30 days
Nursery
Seedlings are raised in protrays of cocopeat.
- 02
Day 0
Planting
Seedlings are planted in troughs or bags with drip.
- 03
Week 3–4
Pinching
The growing tip is pinched so the plant branches and gives more flowers.
- 04
50–60 days
First flowers
The first flowers are picked when fully open.
- 05
Every 3–4 days
Picking
Flowers are picked for 2–3 months.
- 06
4–5 months
Crop end
Plants are removed and the media refreshed.
Plant protection
Common marigold pests and diseases
A polyhouse with insect net, double doors and sticky traps keeps most problems out. Catch the rest early. See the Agronomy Wiki for full guides.
| Pest or disease | What you see | How to prevent it |
|---|---|---|
| Red spider mites | Speckled, dry leaves | Check leaf undersides weekly, keep humidity up |
| Thrips | Distorted flowers | Blue sticky traps |
| Caterpillars | Holes in buds and flowers | Insect net, pheromone traps |
| Flower rot | Brown, rotting flowers | Keep rain off, pick on time |
| Wilt and root rot | Plants wilt and die | Clean cocopeat, do not over-water |
Harvest and selling
Pick, grade and sell
Careful picking and grading decide the price you get.
- Pick fully openPick flowers when fully open, in the cool morning or evening.
- Pick oftenPick every 3–4 days so the plant keeps flowering.
- Pack loosePack in airy bags or baskets so flowers do not heat up and rot.
- Sell with live pricesTrack rates on Price Watcher and reach buyers through Buyers Connect.
Cost and running
What a marigold farm needs
Your quotation lists every item, and our team prepares a marigold crop projection for your farm before you build.
Steady power
Drip runs on a timer. We connect your generator or solar backup for long power cuts.
Good water
A water test before you start tells us how to plan the nutrient solution.
Daily EC and pH checks
Check the feed and the run-off every day and adjust the dose for the crop stage.
Trained workers
Pinching and picking every few days. We train your team for 4 days at the start.
Plan your doses and your sales
Use the nutrient calculator to plan feeds for each stage. Current prices from Price Watcher go into your project report, and Buyers Connect helps you sell after harvest.
Included free
- 6 months of virtual agronomy
- 4-day training for your farm team
- Hydroponic Masterclass logins
- Farm management software
- Buyers Connect
Worth ₹1.08 lakh
Kryzen fully managed farm
Plan a managed mega farm with Kryzen
Starting at 10 acres+
Ready to invest in 10 acres or more of protected cultivation? We help you set up the farm, run it and find a market for the produce.
- We set it upSite survey, design, construction and all farm buildings.
- We run itOur agronomists and trained team manage every crop cycle.
- We find the marketBuyers for your produce through Buyers Connect.
Why you should plan it
- Up to ₹2–2.5 crore a yearIncome potential from a 10-acre managed protected cultivation farm.
- Tax-free agricultural incomeAgricultural income is exempt from income tax under Section 10(1).
- 35% project subsidySupport on the project cost under eligible government schemes.
- AIF: 3% loan interest subsidyInterest subvention on your project loan under the Agriculture Infrastructure Fund.
- 10-year concession periodA long-term agreement for running and managing the farm.
- Build-Operate-TransferWe build the farm, operate it and transfer it to you.
Subsidy and finance
Subsidy for your marigold polyhouse
Polyhouse projects built to National Horticulture Board (NHB) and National Horticulture Mission (NHM) norms can apply for government subsidy. A bank loan is usually part of the project, and the subsidy is paid after the project is checked.
NHB subsidy provider
Kryzen is a registered National Horticulture Board subsidy provider for all states.
NHM state subsidy provider
Enrolled with the National Horticulture Mission in Maharashtra and Karnataka for state horticulture schemes.
Project report for your bank
We prepare the detailed project report (DPR) your bank and subsidy file need, with cost, finance and profit projections.
Subsidy amounts depend on the scheme, your state and current government guidelines. The final decision is made by the government department.
How we build
From first call to first harvest
Ten steps, one team. Most projects are built in 45 to 90 days after material reaches the site.
1Free online consultation
We discuss your land, water, budget and goals on a video or phone call.
2Site inspection
Our team checks level, slope, sunlight, soil, water, power and road access.
3Design and quotation
We design for your climate and crops, and share a detailed quotation.
4Project report and finance
We prepare the DPR for your bank loan and subsidy file.
5Subsidy and loan
We help you apply for NHB or NHM subsidy and your bank loan, with the documents each office needs.
6Manufacturing
We cut, shape and quality-test the material at our factory in Satara.
7Construction
Our team builds the foundations, structure and growing systems on your land.
8Testing and handover
We test every system and hand over a working farm.
9Training and agronomy
Hands-on training for your team and 6 months of virtual agronomy support.
10Harvest management
We help you plan harvests, grading and sales, with market prices from Price Watcher and buyers through Buyers Connect.
Can marigold be grown in a polyhouse?
Yes. Marigold grows well under a nethouse or polyhouse in cocopeat troughs or bags with drip.
How long does marigold take to flower?
About 50–60 days after planting seedlings, with picking for 2–3 months.
When should I plant marigold for festivals?
About 3 months before the festival, so plants are in full flower that week.
How much revenue can marigold make per acre?
Expected revenue per acre for one crop cycle is about ₹1–2 lakh in open field, ₹2–5 lakh in a polyhouse with soil-based growing and ₹5–9 lakh in a polyhouse with hydroponics. It depends on variety, season, market price and how well the crop is managed.
Where can I sell marigold?
To flower markets, temples, garland makers and event planners. Use Buyers Connect to reach buyers.
Talk to our team
Plan your marigold farm with us
Tell us your land, water and market. We’ll suggest the right polyhouse and growing system for marigold and share a detailed quotation.