Hydroponic Mason Jar DIY

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Are you tired of buying expensive herbs at the grocery store only to watch them wither away in your fridge before you can use them? If you’ve ever wished for a way to have fresh herbs at your fingertips without the hassle of traditional gardening, you’re not alone. With hydroponic mason jar DIY, you can finally have a simple and convenient solution in your kitchen.

To successfully grow small vegetables and herbs indoors using Mason jars, also known as the Kratky method, you’ll need the following items:

  • Mason Jars (painted, taped, or covered to prevent algae)
  • Small net pot and Hydroton clay pebbles
  • Nutrient solution
  • pH Tester
  • PPM Meter (parts per million)
  • An excellent sunny windowsill or artificial grow light
person picking basil from clear mason jars growing fresh herbs in water on wooden white background

Imagine the convenience of plucking basil or mint leaves whenever you need them, all from a stylish mason jar setup. Say goodbye to wilted herbs and hello to a sustainable, cost-effective herb garden that you can proudly call your own.

In this article, you’ll discover how to effortlessly cultivate your mini hydroponic indoor garden, regardless of your gardening experience. Stay tuned to uncover the step-by-step process of setting up your hydroponic mason jar, the best herbs to grow, and tips for maintaining a thriving herb garden. Get ready to embark on a journey of homegrown freshness and culinary inspiration right at your fingertips.

Humble Highlights

  • Save time by discovering the critical supplies needed to start your hydroponic mason jar growing AND step-by-step instructions to get it up and running so you can grow unparalleled fresh herbs and small crops in the comfort of your home.
  • Discover what shallow-rooting herbs you should begin with to give your plants the best chance of success—even if you’re a total beginner!
  • Save money with these 5 maintenance tips for your flourishing plants, so you can provide them with optimal care for maximum growth and production!

Supplies Needed

You’ll need specific supplies to support plant growth for a successful hydroponic mason jar system. Start with quart-sized wide-mouth canning jars, which are crucial, providing ample space for roots to grow and allowing for easy maintenance.

hydroponic herb garden diy

You’ll also need 3-inch net pots to secure the plants within the jars, ensuring proper aeration and nutrient absorption. Rockwool growing cubes are ideal as a planting medium in mason jars, offering stability and moisture retention for the plants.

Hydroton clay pebbles are essential for drainage and supporting plant roots in the hydroponic mason jar system, promoting healthy growth. 1

Additionally, hydroponic nutrients are necessary to provide essential plant food for successful hydroponic herb cultivation in mason jars, ensuring your plants receive all required nutrients for optimal development.

Step-By-Step Instructions

After collecting the necessary supplies for your hydroponic Mason jar system, thoroughly clean a quart-sized Mason jar with soap and water. Here’s a step-by-step guide to assist you in growing your plants using the hydroponic Mason jar method:

growing herbs in mason jars with water

  • Utilize a good growing or netting pot to securely hold the plant inside the Mason jar for efficient water and nutrient absorption.
  •  Fill the Mason jar with water and a good liquid plant food solution to provide the necessary nutrients for your plant’s growth.
  •  Plant your selected herb in the growing pot filled with clay pebbles to ensure proper root development and support. 2
  •  Securely assemble the growing pot on top of the Mason jar to create a self-contained hydroponics system for your herb’s growth.
  •  Monitor the water level regularly to prevent algae growth and ensure a consistent supply of nutrients for healthy root systems.

Plant Selection Tips

Consider herbs like basil, mint, and parsley when choosing plants for your hydroponic Mason jar system. These herbs have compact growth and shallow root systems, perfect for small-scale setups. Opt for smaller herb varieties to prevent overcrowding in the jar, and select herbs commonly used in cooking to make the most of your hydroponic setup. 

mason jar hydroponics kit

Humble Tip:

Look for vegetable plants and herbs that typically flourish indoors and adapt well to confined conditions within Mason jars. Use the table below as a reference guide for selecting the right herbs. 3

HerbCompact GrowthShallow Root System

Are you ready to start growing food at home using simple Mason jars? It’s one of the easiest ways to get started in hydroponics, and it requires just a few simple tools and absolutely no experience. However, because you’ll need to discover how to do this properly, watch the short video below that provides all the details beginner and seasoned hydroponic enthusiasts need!

Maintenance And Care Tips

When maintaining your hydroponic Mason jar system, regularly monitor water levels to provide essential nutrients for plant growth. If your water level gets too low, it will be difficult for the roots of your plants to absorb the necessary nutrients required for optimal growth and production. Follow these maintenance tips:

  • Check Water Levels: Avoid root dryness by monitoring water consistently. 4
  •  Trim Herbs: Prevent overcrowding and promote healthy growth by trimming herbs regularly.
  •  Monitor pH Levels: Test water pH to maintain optimal growing conditions.
  •  Provide Adequate Lighting: Ensure herbs receive at least six hours of sunlight daily or use grow lights.
  •  Use Quality Nutrients: Select high-quality hydroponic nutrients in your Mason jar system to support plant growth.
hydroponic herbs indoor

Creative Display Ideas

Place your hydroponic Mason jar garden strategically in well-lit areas to enhance visual appeal and plant growth. Consider organizing your Mason jar hydroponic systems in a decorative tray on a sunny windowsill for a unique presentation. 

A vertical garden is ideal for those with limited space. Stack multiple Mason jars on a wall-mounted shelf, creating an innovative and space-saving setup. Experiment with various arrangements and setups to discover the one that best fits your space and style while maximizing the growth of your herbs using the Kratky method in your Mason jar hydroponic systems. 5

Humble Tip:

Another great idea is to exhibit your hydroponics using hanging hooks or a suspended shelf. This setup saves space and adds a distinct and unique touch to your indoor garden. Personalize your display by applying decorative labels or markers to the jars.


In conclusion, creating a hydroponic Mason jar garden is a simple and rewarding project that can bring a touch of nature into your home. Picture vibrant herbs thriving in stylish jars, brightening your living area, and bringing the allure of nature outdoors inside.

By diligently caring for your plants, you can enjoy a continuous supply of fresh herbs while exploring hydroponic gardening. Take the first step today and witness your indoor garden flourish with life and vitality.

We’d love to hear what herbs and small plants you cultivate in Mason jars inside. Please take a moment to comment below and tell us which of your green friends thrive in your indoor space!


  1. National Library Of Medicine, National Center For Biotechnology Information – A Simplified Non-Greenhouse Hydroponic System For Small-Scale Soilless Urban Vegetable Farming
  2. Wikipedia – Kratky Method
  3. ResearchGate – Growing Lettuce In Non-Aerated, Non-Circulated Hydroponic Systems
  4. Cornell University – Kratky Hydroponic Gardening
  5. North American Association For Environmental Education – Kratky Gardening Method For Preschoolers

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