DIY A Simple 2 Liter Bottle Plant Drip Irrigation System

This year I’m trying something different to water my tomato plants. As I’ve mentioned before, I’ve had trouble with my tomatoes splitting from uneven watering.

So, this time around I’m planting 2 liters alongside my tomato plants. I’ll fill them with water and a fertilizer (manure tea maybe) once a week.

That way they will get a constant moisture supply. Plus, I won’t have to worry about fungus or disease from the leaves of the plant getting wet.

Here’s how it’s done…

First, cut the bottom off of the bottle. I just cut where the seam is:

Next, use a nail or something to poke a couple of holes in the lid of the bottle. This is where the water will drip out at the roots of the plant.

Then you bury the bottle neck-down next to the plant, so that it’s angled toward the roots of the plant. Be careful not to disrupt the delicate root system when digging.

Hopefully this year will be my best tomato harvest yet!

Have you tried this watering system before? Do you have a better idea for watering tomato plants (and others) consistently? What works for you?

6 thoughts on “DIY A Simple 2 Liter Bottle Plant Drip Irrigation System”

  1. I have seen dozens of the same idea posted and no one addresses the fact that inserting the soda bottle upside down, with the bottom cut off and filled with water creates a perfect environment for mosquitoes to lay eggs.

    Would be better to add something about putting a piece of screening over the opening

  2. P.S. We did just install a dripline system in our high tunnel a couple of weeks ago and hooked it up to a timer. What a BIG time-saver!

  3. That’s a great watering idea! We’ve done the same things with empty milk jugs before–just poke a couple holes in the bottom of the jug, fill it, and set it on the ground. We’ve actually used this method for newly planted trees that require a lot of water during the first months after planting. It’s basically a homemade dripline irrigation system. 🙂

  4. We did driplines for everything in the last garden. We started with mini sprayers while waiting for germination and then driplines when things were established. It was amazing.


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