How Many Drip Lines for a 4x8 Bed?

It really depends on what you're growing. If you have bigger plants, I recommend putting one drip line at the base of each plant to ensure they get enough water.

The number of lines you need also depends on the spacing of the emitters on your drip tape and the plants in your garden. I usually start with three lines—one in the center and one on each side spaced evenly. After running the system for 15-30 minutes, check for dry spots and adjust as needed. Also, consider how well your soil holds water; it might take some trial and error to find the right setup for deep watering once a week.

Thanks for your insights! I'm thinking of using drip lines with 6" spaced emitters, typically at 0.5 gph. I'm worried about whether three lines will cover the edges of my bed well enough. I hear they can spread about 16 inches wide, so maybe that’ll work? I’ve mixed different soils, so I’m curious how that will affect watering.