Go to a website called answerthepublic.com, it can give you information about popular things that people search for online. In the search bar, type 'potted plants'. It takes about 30 seconds to load (for me at least), but then it will give you 50+ common questions that people search for about your topic, such as 'what is the easiest potted plant to care for?' etc. I find this really useful, hope it helps
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