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How to Grow Herbs in Hydroponics

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How to Grow Herbs in Hydroponics

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Overview

Fresh herbs year-round can be achieved when growing in a hydroponics system, which is a method of growing plants without soil. Start herb seeds in hydroponics rockwool cubes to make the transplanting process simple and low maintenance. Choose a nutrient film technique or deep-water hydroponics system for growing herbs in a sunny window of a home. Other hydroponics systems work well with supplemental light for the plants. Herbs that grow well in the hydroponics environment are basil, chives, parsley, rosemary, mint and thyme.

Step 1

Soak 1-inch rockwool cubes for two hours in a planting tray filled with water. Drain the water and sow two to three herb seeds in each rockwool cube at a depth of 1/4 inch.

Step 2

Cover the train with clear plastic and place it in an area that receives indirect sunlight and has a temperature of 68 to 70 degrees Fahrenheit. Grow the herb seedlings to a height of 2 inches.

Step 3

Assemble the hydroponics system while the herb seedlings are growing. Test the system by filling it with water and turning on the pump to make sure it is working properly.

Step 4

Add water nutrients just prior to transplanting the herb seedlings into the hydroponics system. Follow the package instructions for the application rate based on amount of water moving through the system. Include nutrients when adding water and refreshing water in the system to maintain the correct concentration for growth.

Step 5

Transplant the herb seedlings by placing the small rockwool cubes into larger rockwool cubes set into the hydroponics system. There is no need to remove the seedlings from the rockwool cubes. Set herb plants 6 to 8 inches apart in the system.

Step 6

Assemble grow lights over the hydroponics system if bright sunlight is not available for a minimum of eight hours each day. The preferred day length is 12 to 16 hours of sunlight for best production rates. Set the lights 6 inches above the top of the herb plants and raise them as the seedlings grow in height.

Step 7

Pinch off flower buds as they appear to prevent a bitter taste in the herb plant.

Things You'll Need

  • 1-inch rockwool cubes
  • Planting tray
  • Herb seeds
  • Clear plastic
  • Water
  • Hydroponics nutrients
  • Hydroponics grow system
  • Large rockwool cubes
  • Grow lights

References

  • Hydroponics Online: Seed Germination
  • University of Kentucky: Culinary Herbs
  • Hydroponics: Hydroponics Herbs
Keywords: grow herbs hydroponically, grow herbs indoors, plant hydroponics herbs

About this Author

Jennifer Loucks has over 10 years of experience as a former technical writer for a software development company in Wisconsin. Her writing experience includes creating software documentation and help documents for clients and staff along with training curriculum. Loucks holds a Bachelor of Science major from the University of Wisconsin - River Falls specializing in animal science and business.