First time grower nutrient advice.

So it's my first time growing cannabis and I had some questions on nutrients, specifically when to start feeding them to your plant. I picked up some nutrients from the store (N-P-K = 28-8-16) and i was wondering when to start feeding it to my plant. Its 2 weeks old and the second set of leaves just came in like 4 days ago. I am growing it outside in a 2 gallon pot. I did some research online and I got answers ranging from as soon as it sprouts to no sooner than 4 weeks. I don't want to hurt it by feeding it too soon and I would appreciate some advice from long time growers. Thanks for the help.

no rush.....3 to 4 weeks

@ the 4th week I would feed @1/3 strength of what you got for say 2-3 weeks & then incrementally work your way up to full strength if that... if it looks good with less than full strength--go with that.

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try to learn to read your plant, it will tell you what it needs