It's that time of year, fellow gardeners (at least in the northern hemisphere)!!!
The time of year when everyone is asking:
Please post your seed-related questions here!!!
I'll get you started with some good source material.
Everything you need to know about starting seeds, in a well-organized page, with legitimate info from a reliable source:
As always, our rules about civility and promotion apply here in this thread. Be kind, and don't spam!