Growing Hydroponic Mint

mint leaf 

Mint has a wonderful flavor and aroma used in almost everything imaginable.  There’s something about the subtly sweet, cool, menthol taste of mint that sends an instantaneous message to our brains that we are being refreshed by something natural and pleasant.

Fortunately, mint is another herb that grows prolifically in hydroponics, creates a fantastic aroma, and can be used to freshen up your teas, deserts, cocktails, garnishes, and sauces.  You could find yourself using mint everyday for extended periods of time, and never tiring of its mouth-watering taste and aroma.

In fact, due to its welcoming aroma, mint has been used as a symbol of hospitality in ancient Greece, where it was rubbed on tables to welcome visitors, and in the Middle East where mint tea has been offered to guests upon their arrival for hundreds of years.

There are hundreds of varieties of mint, but peppermint and spearmint are the classics.  Peppermint is sweet and used in desserts, syrups and refreshing drinks, while spearmint is savory and is used as a spice for cooking with.

One more benefit of mint is that it is known to deter garden pests like spider mites, aphids and whiteflies. There’s simply no reason not to enjoy the many benefits of mint in your indoor garden!

Hydroponic Mint
Germination Light EC Range pH Range: Time to Harvest
Easy 24-16 hours 2.0-2.4 5.5 - 6.0 4-6 weeks
Nutrient and Health Info - Small amounts of mint may not be chock full of vitamins and minterals, but it is known to help with indegestion and even irratable bowel syndrome.
Tips & Tricks - Grow peppermint for its sweetness in desserts, syrups and refreshing drinks. Grow the more savory spearmint for cooking and spices.


Refreshing, mint beverage


Mint seeds are teeny-tiny, so it’s easy to lose them when you’re planting.  Don’t worry if you end up planting more seeds than intended.  If more than 2-3 sprout, just thin them out so your garden does not become overcrowded.  Also, be patient, as mint can be slow to germinate.  Give your seeds at least 2 weeks before you become frustrated.  And don’t forget, you can always speed things up by using our Seedling Starter Kit or the paper towel method increase the rate and speed of germination.


Because mint is such a prolific grower, it prefers lots of light for energy.  Schedule your indoor garden lights for 14-16 hours a day

EC Range:

Mint prefers more nutrients than many other herbs.  Keeping your EC ranges between 2.0 – 2.4 is optimal for mint, but it is tolerant of lower EC ranges when grown with other herbs and leafy greens.  It simply will not grow as aggressively as it would with other leafy plants that also prefer a higher EC range, like celery, bok choy, spinach and Swiss chard.

pH Range:

For best results, keep your pH range between 5.5 – 6.0.  If you have other plants that prefer a higher pH range feel free to increase it just a bit, and you should still have success!


Our Green Machine nutrients are perfect for mint, other herbs and leafy greens.  You won’t have to worry about adding anything special for your mint plants to thrive once they start growing.

Time to Harvest:

You’ll be ready to begin harvesting and enjoying your mint in 4-6 weeks at most.  Get ready to freshen your cocktails, drinks, deserts and sauces with this wonderful flavor!

Pruning and Harvesting:

Because mint grows quickly, you can harvest it liberally once it begins to take off.  But, in its early stages make sure to harvest more conservatively to give it time to have a healthy root system and more leaves to collect sunlight and grow.  Always leave at least 3 inches of growth with leaves at the base, to allow your mint to continue flourishing.


Mint is universally loved and grows incredibly well in hydroponic systems.  It also provides a fresh, welcoming fragrance to your indoor garden.  Enjoy peppermint for its sweetness in desserts, syrups and refreshing drinks, and spearmint for cooking and spices.

Check Out Our Mint Recipes!

Let’s grow together!