Growing a window garden how to get more fruiting?

I had a ton of luck with baby cherry tomatoes and green beans. Also these cute purple flowers and marigolds. I grew a few fingerling potatoes too. I am going to try lettuce next. I don't like using chemicals. I can't use đź’© because they are in the house. I have A year old flowering pumpkin plant but it's never sprouted.

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I do green onions too I have been using them for a year and haven't bought any since. they grow so fast they are so much better than and bigger than the store.
I am trying to get a plot in a community garden. I want to do corn
Growing a window garden how to get more fruiting?
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