How to Grow Hydroponic Beets

Root crops such as beets can be successfully grown hydroponically.

A methodology that uses ample media to support the plants while the roots develop is necessary. Ebb and flow systems lend themselves well to root crops, but others, such as aeroponics work also.

Beets growing Hydroponically

Growing Beets Hydroponically

  • Nutrient pH 6.0 to 6.5
  • EC 0.8-5
  • PPM – 1260-3500

Best Containers and Grow Media for Hydroponic Beets

Delxo 10 Pack 1 Gallon Grow Bags Heavy Duty Aeration Fabric Pots Thickened Nonwoven Fabric Pots Plant Grow Bags with Handles
  • 【Large capacity】10 pack-1 gallon. Get the best planting bags at the lowest price and buy them at once to meet all your needs.
  • 【Sturdy Fabric Material】Made of 300G thickened nonwoven fabric wihich is fairly permeable,environmental-friendly and heavy duty & durable, wear-resisting, highly tear resistant, easy to clean, can be used repeatedly.
  • 【Great For Root Formation】Whether they are small/large or indoor/outdoor plants, these fabric pots are great at growing plants.Allow your roots to breath which results in both faster growth and greater plant vigor.Prevents roots from circling and enhance root structure to promote healthy root development. So it's better than plastic containers to protect the environment.

A container has to be the correct size to accommodate your beets at their peak. Beet sizes vary somewhat dependent on variety, but they basically attain a size of about 1 to 2 inches in diameter.

The containers should be at least 4 inches in diameter by at least 6 inches deep in order to accommodate the beetroots and their capillaries. I sometimes use grow bags, but basically any container will suffice.

Grow Media

Organic Expanded Clay Pebbles Grow Media for Orchids, Hydroponics, Aquaponics, Aquaculture Garden (2 LB Cz Expanded Clay Pellets)
  • 2 LBS of 100% natural expanded clay. Inert, pH-neutral, clean & decorative.
  • For Orchids - Clay Pebbles porous structure provides excellent aeration and acts as a water reservoir.
  • For Hydroponics - Ensures good root aeration and prevents rotting and excess acidity

Fill your container with a growing media to support and stabilize the seedlings. Sand or sphagnum moss will work.

A blend of perlite, vermiculite will work even better. A little peat blended in is not a bad idea – but not absolutely necessary. Perlite-Vermiculite blend or expanded Clay pebbles both have proven advantages.

Be sure to leave some head space, at least an inch, more if possible, between the filler from your reservoir and the containers top.

See: How to Grow Hydroponic Cucumbers

Temperature and Lighting for Hydroponic Beets

Beets are a cool-weather crop, they will survive chills but don’t fare well in the intense summer heat. Air Temperatures of 60-65 F during their active growing periods are best.

See Hydroponic Temperature for info related to nutrient solution temperatures.

If you are growing them outdoors, a well-lit location is best – partial shade will suffice, but not full shade. Indoors Grow Lights need to provide 6 – 8 hours of light daily.

Starting Beet Seeds for Hydroponics

Sow Right Seeds - Detroit Dark Red Beet Seed for Planting - Non-GMO Heirloom Packet with Instructions to Plant a Home Vegetable Garden - Great Gardening Gift (1)
  • Beautiful -- Large full-color packet of Detroit Dark Red Beet seeds; These 2-3" round beets have sweet red flesh and tasty edible greens. Can tolerate temperature variations. Minimum of 1.5g per packet.
  • Good Eats -- Whether eaten raw, roasted with goat cheese, in a salad, or pickled, the earthy goodness of beets is unmistakably delicious. This queen of root crops is so sugar sweet it is a wonder that it is so nutritionally dense.
  • Rainbow of Colors -- Beets come in a wide mix of colors from ruby red, golden, dark red, white, yellow, and even the Chiogga striped. The are also a food that can be grown in the fall and stored for winter.

Plants can be started from seed, I’ve started some in oasis cubes and transferred to the setup. You can also start them conventionally – in soil and then transfer them into the hydroponic system.

For plants started in soil, rinse off the roots of your seedlings to remove any soil particles, which can interfere with your solution. Place the plants roots in a container of weak nutrient solution at about 1/4 strength, to soak for about half an hour.

A stronger solution can shock the plants.

Beet Hydroponic Nutrient Requirements

Neptune's Harvest Crab & Lobster Shell, 4 lb
  • Crab & Lobster Shell will keep your lawn healthy and green
  • It will also help with nematode and fungus problems
  • Neptune's Harvest organic Crab & Lobster Shell is an excellent dry organic source of NPK (5-3-0), calcium (17 %) and magnesium (1%)

Beets are heavy feeders. They need fertilizer/ nutrients. Nitrogen is the most important nutrient during the season to grow properly. However, you can’t simply dump a ton of nitrogen into the solution, or even use a very high nitrogen solution and expect the plant to synthesis it correctly. Unfortunately, it’s not that easy.

One method is to add slow release nitrogen such as Neptunes Harvest Crab Shell.

Another method is by supplying hydroponically grown beets with humic acid which has been shown to increase yields dramatically [3]. Humic Acid facilitates nutrient uptake in plants and lends itself well to the hydroponic scenario.

Related: Growing Spinach Hydroponically