However, depending on the context, you could use these phrases:
* गेंदा फूल की खेती (Genda phool ki kheti): This translates to "cultivation of marigold flowers."
* गेंदा फूल का उत्पादन (Genda phool ka utpadan): This means "production of marigold flowers."
* गेंदा फूलों का संग्रह (Genda phoolon ka sangrah): This translates to "collection of marigold flowers."
If you can provide more context about what you're trying to say, I might be able to give you a more specific answer.