You're taking too much in at once (threadstarter). Concentrate on one step at a time and don't worry about harvest time yet. You aren't even there yet and you're asking how to harvest.

Work on one thing, getting the seed sprouted. Sprout it at home or in the ground, up to you. Sprouting is easy. Moisture and warmth will get a seed to sprout. Use dirt and water.

Once you have the seeds sprouted then water, sunlight, water, sunlight, etc...Once you get to that point, then find out what the next step is, but until you do, don't fill your head with the not so important stuff right now.

Go to the FAQ's here, or go to the top of the page here, to FAQ's, and read the basics of growing:

www.overgrow.com

They have basics to advanced. Hope this helps.

Peace