3 days should be no problem IMO. A good watering before ya head out the door, I would think you'll be fine.Alright guys I need some advice, going to be leaving for Easter weekend, going to be gone for 3 days. I have 1 seedling and 1 plant on week 5 going right now. The seedling im not worried about she will be fine but what's the best way to water when I'm gone. I water about 1 gallon every 24 to 36 hours right now.
Edit: I made a rash assumption your growing in soil, my bad.