This trick is a lifesaver for any gardener who wants a bountiful harvest but doesn’t have time for daily watering or wants to spend a fortune on expensive irrigation systems. It’s called “subsurface drip irrigation,” which works on the principle of capillary action and gravity.

Here’s how to properly “install” the 5-liter bottle, and your tomatoes or cucumbers will thrive.

🛠️ Here’s how: Step by step
Preparing the bottle: Take a clean 5-liter plastic bottle. Using a hot needle or a thin nail, pierce small holes in the sides (3-4 rows of holes around the circumference are sufficient). Important: The holes shouldn’t be too deep (right at the bottom) to prevent sediment from settling.

Bury: Dig a hole next to the plant (e.g., tomatoes, peppers, or pumpkins) that is deep enough so that after inserting the bottle, only the neck (approx. 5–10 cm) protrudes from the soil.

Secure: Place the bottle in the hole and cover it with soil. Press it down firmly.

Fill: Pour water through the neck of the bottle to the rim and loosely close the bottle (do not screw it on completely so that air can enter and water can escape).

📊 Why is this method better than conventional watering?

Features: Classic drip irrigation, watering from a bottle

Purpose: You water the soil surface. The water goes directly to the roots.

Evaporation: Up to 30% of the water evaporates in the sun. Evaporation losses are virtually zero.

Diseases: Wet leaves = risk of mold and fungal diseases. The leaves remain dry and healthy. Frequency: You need to water daily. The water will gradually evaporate over 2–4 days.

💡 Why will you be thrilled with the results?

This trick encourages the plant to develop a deep root system. With normal watering, the roots remain just below the surface, as they sense moisture there. However, when the water comes from deeper down (from the bottle), the roots grow downwards.

The result is a stronger and more robust plant that tolerates summer heat much better and produces larger fruit, as it is consistently supplied with moisture and not exposed to temperature fluctuations.

🌟 Bonus tip: Liquid fertilizer

You can also add some liquid fertilizer or homemade nettle tea to the water in the bottle. This way, the nutrients go directly to the roots and aren’t absorbed by weeds on the surface.