Just wondering when I should start giving these girls some nutrients.. they're in about week 3 or 4 from seed. Sorry lol just found this website a little late..
Feed nutes once the cotyledons (original round leaves) start dying. Usually around the end of week 3 they start yellowing. That's your signal.
Start off feeding at 1/4 strength. If your soil is already fertilized, you can probably wait until week 5.
Autos grow fast. 8-12 weeks . They will start flowering in week 4-5. If it's good soil flower feed is all you may need. Veg feed around 2-3 weeks. Flower feed once u see flowers developing