The general rule: start seeds indoors 6-8 weeks before your last frost date, or before nighttime temperatures are consistently above 50-55°F (for warm-season crops like tomatoes, peppers, and eggplant). There’s some flexibility here, but knowing your timing helps you work backwards. If you want to learn more and watch a step-by-step video workshop on indoor seed starting, you can find that here. My indoor seed starting setup: