how many times/how often in a growth cycle are you supposed to feed the plants? I'm about 2 months in and I've fed them once already about 2 weeks ago.
depends on what you're using as a medium. If you are using soil...then feed sparingly. Read the plants...and only feed when needed.
If you are using a soiless mix without amendments...then feed with every watering. Start at 1/4 strength...and increase until you see slight burn on the tips...then back off.