Hydroponic Beets: How to Grow Them Indoors

Growing beets hydroponically is a popular way of cultivating fresh, healthy vegetables indoors. With proper care and attention, hydroponic beets can grow as healthy and nutritious as soil-grown beets, providing an excellent source of vitamins and minerals.

In this article, we will discuss how to grow hydroponic beets indoors, step by step, from selecting the right equipment to harvesting your crop.

Choosing the Right Hydroponic System for Beets

There are many hydroponic systems available, including deep water culture, ebb and flow, and drip irrigation. However, when it comes to growing beets, the best option is the NFT (Nutrient Film Technique) system. The NFT system provides a constant flow of nutrients and water to the plants, promoting healthy growth and allowing the beets to absorb the nutrients they need to thrive.

Preparing the Hydroponic Setup for Beets

Before planting, it is essential to set up the hydroponic system correctly. Start by filling the reservoir with water, adding nutrients as per the manufacturer’s instructions. Then, set up the NFT channels, ensuring that they are level and the nutrient solution flows smoothly. Adjust the pH level to ensure that it is between 6.0 and 6.5, as beets prefer slightly acidic conditions.

Starting Seeds for Hydroponic Beets

Starting beet seeds can be done in a variety of ways. One popular method is to use a growing medium such as rockwool cubes or coconut coir. Soak the medium in water and add a seed to each cube or pot. Keep the growing medium moist and warm, and within a few days, the seeds will begin to sprout.

Transplanting Seedlings into the Hydroponic System

Once the seedlings have grown to about 2 inches in height, it is time to transplant them into the hydroponic system. Carefully remove the seedlings from the growing medium, being sure not to damage the roots, and place them into the NFT channels. Be sure to leave enough space between the plants to allow for growth.

Nutrient Management for Hydroponic Beets

As the plants grow, it is essential to monitor the nutrient levels regularly. Beets prefer a nutrient solution high in potassium, phosphorus, and nitrogen. However, too much of any nutrient can be harmful, leading to nutrient burn or plant death. Keep the nutrient levels balanced and adjust them as needed based on the plants’ growth and development.

Light and Temperature for Hydroponic Beets

Beets require around 12 hours of light per day to grow well. LED grow lights are the best option for indoor growing, as they provide the right spectrum of light and are energy-efficient. The temperature should be between 55-75°F for optimal growth.

Pruning and Harvesting Hydroponic Beets

Beets require little pruning, but it is essential to thin them out as they grow to allow room for growth. Beets are ready to harvest when the root is about 1.5 to 2 inches in diameter. Cut the stem off at the base of the plant and rinse the beets thoroughly before eating or storing.

Pests and Diseases for Hydroponic Beets

While growing beets hydroponically can reduce the risk of soil-borne pests and diseases, they are still susceptible to certain issues. Common pests that may attack hydroponic beets include aphids, spider mites, and whiteflies. To prevent pest infestations, ensure that your hydroponic setup is clean and well-maintained, and inspect your plants regularly for any signs of pests.

Diseases that may affect hydroponic beets include root rot, powdery mildew, and downy mildew. These diseases are often caused by poor air circulation, high humidity, or improper nutrient levels. To prevent disease, ensure that your hydroponic system is well-ventilated, and keep the nutrient levels balanced. If you notice any signs of disease, remove the affected plants immediately to prevent further spread.

How to Prevent Pests and Diseases in Hydroponic Beets

Preventing pests and diseases in hydroponic beets requires a combination of proactive measures and regular maintenance. Here are some tips to keep your plants healthy and pest-free:

  1. Keep your hydroponic setup clean: Regularly clean your hydroponic system, including the reservoir, pumps, and tubing. This will help prevent the buildup of algae and other organic matter that can attract pests.
  2. Monitor nutrient levels: Imbalanced nutrient levels can weaken your plants and make them more susceptible to pests and diseases. Monitor your nutrient solution regularly and adjust as needed.
  3. Inspect your plants regularly: Regularly inspect your plants for signs of pests or disease, such as yellowing leaves, stunted growth, or visible insects. Early detection can prevent an infestation from spreading.
  4. Use beneficial insects: Introduce beneficial insects, such as ladybugs or lacewings, to your hydroponic setup. These insects can help control pest populations naturally.
  5. Use organic pest control: Avoid using chemical pesticides in your hydroponic setup , as these can harm beneficial insects and contaminate your nutrient solution. Instead, opt for organic pest control methods, such as neem oil or insecticidal soap.

By following these tips, you can help prevent pests and diseases in your hydroponic beets, ensuring a healthy and productive harvest.

Top Varieties of Beets for Hydroponic Growing

When it comes to growing beets hydroponically, choosing the right variety is important for maximizing yield and flavor. Here are some of the top beet varieties for hydroponic growing:

  1. Detroit Dark Red: This variety is a classic beet that is known for its deep red color and sweet flavor. It has a smooth texture and is great for roasting, juicing, or pickling.
  2. Chioggia: Chioggia beets have a distinctive candy-striped appearance, with alternating red and white rings. They have a mild, sweet flavor and a tender texture that is ideal for salads or roasting.
  3. Golden: As the name suggests, golden beets have a bright yellow color and a mild, sweet flavor. They are great for roasting or steaming, and their color adds a beautiful pop to any dish.
  4. Bull’s Blood: This variety has dark red leaves and a deep, earthy flavor. The leaves are edible and can be used in salads, while the root is great for roasting or pickling.
  5. Cylindra: Cylindra beets have a cylindrical shape that makes them ideal for slicing or pickling. They have a sweet, mild flavor and a tender texture that is great in salads or as a side dish.

When selecting beet seeds for hydroponic growing, look for varieties that are disease-resistant and adapted to the growing conditions in your setup. With the right variety and growing techniques, you can enjoy a bountiful harvest of delicious, nutrient-rich beets.

Nutrient Requirements for Hydroponic Beets

Hydroponic beets require a balanced nutrient solution to grow and thrive. Here are the key nutrients that your beet plants will need:

  1. Nitrogen: Nitrogen is essential for plant growth and is responsible for the development of foliage and stem tissue. Beets require moderate levels of nitrogen throughout the growth cycle.
  2. Phosphorus: Phosphorus is critical for root development and helps plants absorb other nutrients. Beets require higher levels of phosphorus during the early stages of growth.
  3. Potassium: Potassium helps regulate plant growth and is necessary for the development of strong, healthy roots. Beets require moderate levels of potassium throughout the growth cycle.
  4. Calcium: Calcium is important for cell wall development and helps prevent diseases like blossom end rot. Beets require moderate levels of calcium throughout the growth cycle.
  5. Magnesium: Magnesium is essential for photosynthesis and helps regulate plant metabolism. Beets require moderate levels of magnesium throughout the growth cycle.

In addition to these key nutrients, beets also require micronutrients like iron, manganese, and zinc. To ensure that your hydroponic beets receive all the nutrients they need, it’s important to monitor your nutrient solution regularly and adjust as needed. Many hydroponic nutrient solutions are available on the market specifically formulated for beets, making it easy to provide your plants with the right balance of nutrients for healthy growth and development.

Harvesting Hydroponic Beets: When and How to Harvest

One of the joys of hydroponic gardening is being able to harvest fresh, delicious produce right from your own home. Here’s everything you need to know about harvesting hydroponic beets:

  1. Timing: Beets are typically ready for harvest 8-10 weeks after planting. However, the exact timing will depend on the variety of beet and the growing conditions in your setup. Beets are ready to harvest when the roots are between 1-3 inches in diameter.
  2. Appearance: When it’s time to harvest your beets, look for roots that are firm and smooth. The skin should be a rich, deep color, and there should be no cracks or splits in the root.
  3. Harvesting: To harvest your beets, gently grasp the root at the base and pull upward. The root should come out of the growing medium easily. If you have trouble removing the roots, use a garden fork or trowel to loosen the soil around the root and then try again.
  4. Storing: After harvesting, rinse your beets thoroughly with cool water to remove any dirt or debris. You can store beets in the refrigerator for up to a week, or you can blanch and freeze them for longer storage.
  5. Replanting: If you want to continue growing beets, you can replant new seeds in your hydroponic setup. To avoid soil-borne diseases, it’s important to start with fresh, disease-free seeds and to sterilize your growing medium between plantings.

By following these tips, you can harvest delicious, nutrient-rich beets from your hydroponic garden all year round. Enjoy the taste of fresh, homegrown produce in your salads, soups, and side dishes!

Frequently Asked Questions (FAQs)

Can I grow beets hydroponically without any soil?

Yes, beets can be grown hydroponically without any soil using a variety of different growing media, including rockwool, perlite, or coconut coir.

What kind of light do hydroponic beets need?

Hydroponic beets need at least 6-8 hours of bright, direct light each day. LED grow lights are an excellent option for providing the right kind of light for hydroponic beets.

How often do I need to change the nutrient solution in my hydroponic setup?

It’s recommended to change your hydroponic nutrient solution every 2-3 weeks to ensure that your plants are receiving the right balance of nutrients and to prevent the buildup of harmful salts in your system.

Can I reuse the growing medium from one crop to the next?

It’s possible to reuse growing medium from one crop to the next, but it’s important to sterilize the medium between plantings to prevent the spread of disease and pests.

Can I grow other vegetables hydroponically besides beets?

Yes, there are many vegetables that can be grown hydroponically, including lettuce, spinach, tomatoes, cucumbers, and peppers, to name a few.


Growing hydroponic beets is a great way to enjoy fresh, nutrient-rich produce all year round. With the right setup and a little bit of know-how, you can grow beets that are just as delicious and nutritious as those grown in soil.

To get started, choose a hydroponic system that’s right for you and select the right growing medium and nutrient solution for your beets. Monitor your plants regularly and adjust your system as needed to ensure that your beets receive the right balance of nutrients and water.

By following the tips and techniques outlined in this article, you’ll be well on your way to growing healthy, delicious beets in your own home. Whether you’re a seasoned gardener or just starting out, hydroponic beets are a great addition to any home garden.

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