Aqua GlobeEver wondered about Aqua Globes? Those glass bulbs for watering of pot plants?

It is an automatic watering system where plants regularly receive water when needed.

Good news: you can make them yourself very easily and for free with a glass bottle with a long neck. It involves absolutely no DIY skills.

And yes, it really works.

How does it work?

When the soil is dry, air gets into the bottle and water flows from the bottle.

When the soil is moist, no air can get into the bottle and the water remains in the bottle.

This way, water is released when needed, not too much and not too little.

What can you use it for?

For pot plants in general, houseplants as well as patio plants.

If you go on vacation, your plants have a water reserve.

It is also useful for people who never know when to water their plants: the plant gets water according to its needs.

The bottle is empty? Just refill with water. As the bottle stands above the soil, you can see at a glance if it is empty.

I recommend to test it beforehand so you can see how slow or how fast the water flows, you might need more than one bottle for a plant.

How long does the water reserve last?

This depends on the size of the plant and the temperature.

For some plants, the bottle empties in 1 day while for others, the water reserve lasts a few days to a few weeks.

And in warmer weather your plants need more water of course.



What do you need?

A glass bottle with a long, narrow neck, such as a wine bottle.

The long neck is needed because the soil is usually drier at the surface than lower in the pot.

This will avoid the bottle to empty too fast and your plant getting too much water.

Use a colored bottle as this will prevent algae growth.

How do you proceed?

There are a few things you should pay attention to, otherwise it will not work:

  • clean the bottle thoroughly with dish wash detergent and rinse with clear water
  • water the plant first so the soil is already moist, otherwise the bottle will empty immediately
  • make a hole in the soil almost as wide and deep as the bottle neck, this prevents clogging of the bottle neck with soil
  • fill the bottle up to the very top
  • turn the bottle upside down and quickly place it in the hole

Tadaaa… and now come back and check every 10 minutes if the water has not flown out of the bottle all at once. Yup, that’s what I did 🙂

Image sources

  • Aqua Globe: Wil Taylor
  • Make a hole for the bottle neck: Own work
  • Fill the bottle with water: Own work
  • Place the bottle upside down in the hole: Own work

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