We have a FANTASTIC resource you will want to bookmark. It tells you what conditions the particular variety needs to help it germinate. Some seeds need it dark. Some seeds need bright light to germinate. Some need to be soaked beforehand. No matter the situation, this is where you want to start.
This is an active reference we update from time-to-time as we learn through researching and growing new varieties. Be sure to bookmark the page and check back for updates! https://growyourhealthgardening.com/seeds-that-require-special-treatment/
And remember, when you start from seed, even though you are taking a bit of a gamble on some seeds, the thing that is so awesome is you can grow varieties not commonly found at big-box retail garden centers. A whole new world awaits you!
Oh — and if you’re new to seed starting, be sure to check the “Seed Starting” tab on our Web site for other helpful tips to help you in your quest to start seeds at home.
Hope this helps!