To germinate Tropicana Cookies Feminized seeds, begin by preparing a clean and pH-balanced growing medium such as soil or coco coir, then place the seeds about 0.5-1 cm deep into the medium, ensuring they are covered lightly, water the medium gently, and maintain a consistent temperature between 20-25°C with a humidity level around 70%, providing indirect light or using a propagator until the seedlings emerge within 3-7 days, after which they can be transplanted into larger containers and provided with adequate light, water, and nutrients to continue their growth.