How to Grow Wheatgrass


Growing your own healthy wheatgrass at home is an easy project. Here’s exactly what you need to do to learn how to grow wheatgrass. Your kitchen wheatgrass garden tray will be the perfect addition to your kitchen and juicing routine!

how to grow wheatgrass at home in small trays - healthy green vegan wheatgrass juice

How to Grow Wheatgrass

Supplies for Growing Wheatgrass at Home

  • Tray: Seed starting tray or repurposed take-out tray. Seed starting trays from garden centres work well, as do repurposed take-out trays. If you don’t want to use plastic, you can use a single baking tin or pyrex dish. Having a cover for the tray will help with germination.
  • Mesh Strainer: metal or plastic. Ensure the holes in the strainer are smaller than the seeds, so as not to wash out any seeds.
  • Wheatgrass Seeds: Certified Organic Pathogen-Free Wheatgrass Seeds. These can be called “Hard Winter Wheat Seeds”, “Hard Red Spring Wheat Seeds”, or “Wheatgrass Berries”.
  • Potting Soil: Sterile seed starting mix. Choose an organic seed-starting soil, or one that does not have chemical fertilizers mixed in.
  • Hydrogen Peroxide: 3% hydrogen peroxide solution (sold at drugstores and grocery stores).
  • Light: Sunny patio/window, or a grow light; If you have a very sunny window or patio free from pests, your microgreens may grow well without any additional light. If you don’t have such a space, or would like bushier microgreens, use a fluorescent light or a compact LED plant light.
  • Water: Filtered water is best. If using tap water, allow it to sit on the counter in a container for several hours to off-gas the chlorine.
  • Spray Bottle: Misting bottle full of filtered water.
  • Harvesting Tool: Sharp chef’s knife or scissors.
tutorial image for how to grow wheatgrass showing green growing wheatgrass blades

Tutorial: How to Grow Wheatgrass

  1. Measure out your wheatgrass seeds. Pour enough seeds into the tray so that the seeds cover about half the available area. The seeds should be almost touching each other, but not quite. Set the seeds aside.
  2. Sanitize your supplies. I use my dishwasher’s sanitize setting to sanitize the tray, mesh strainer, and knife.
  3. Sanitize your seeds. I follow the University of California method, in which seeds are immersed in a mixture of warm water and hydrogen peroxide for 5 minutes.
  4. Following sterilization, soak the wheatgrass seeds in the tray for 6-8 hours in filtered water.
  5. Pour seeds into the mesh strainer and set aside to drain.
  6. Fill the tray with sterile soil mix until soil is 3 cm (1 inch) deep. Gently compress the soil mix in the tray as you fill it.
  7. Water soil with filtered water so that the soil is moist but not dripping wet.
  8. Rinse the seeds in the strainer with filtered water.
  9. Evenly distribute rinsed seeds onto moist soil surface.
  10. Lightly compress the wheatgrass seeds into the soil.
  11. Cover the tray with the lid. If your tray has no lid, cover the tray with another tray.
  12. Now we wait for the seeds to germinate!

Steps for Caring for Your Tray of Wheatgrass

  1. Check the seeds and soil moisture levels once or twice per day. Checking for seed germination and growth is a key part of learning how to grow wheatgrass.
  2. When the seeds have germinated (tiny little sprouts are coming out of them), remove the lid and place the tray in a sunny warm indoor area, on the patio, or under a plant light.
  3. Check the seeds daily for soil moisture and growth, watering if necessary.
  4. As the wheatgrass grows, ensure the soil is kept moist but not wet.
  5. Harvest with a knife or scissors when the wheatgrass is approximately 6″ high. Only use scissors if you’re going to use the wheatgrass within the next day or two.
  6. Wash wheatgrass by fully submerging in cold water.
  7. Spread the grass onto a clean towel to dry.
  8. If storing, wrap the wheatgrass in paper towel in an airtight container in the fridge.
  9. The wheatgrass will grow back after harvest and can be used a second time.
  10. The used soil can then be composted, and you can start all over again!

Grab your free cheat sheet of these instructions here:

Wheatgrass Printable Instructions

Wheatgrass printable

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Print the instructions for how to grow wheatgrass out and put them on your fridge or beside your wheatgrass tray. You’ll be a wheatgrass garden guru in no time!

green wheatgrass blades being added to vitamix blender container

Where to Buy Wheatgrass Seeds

Wondering where to buy wheatgrass seeds? It’s easy to order Wheatgrass Seeds from Amazon, and to find them in some grocery stores. Keep in mind that wheatgrass seeds are also called “Hard Winter Wheat Seeds”, “Hard Red Spring Wheat”, or “Wheatgrass Berries”. I look for Certified Organic Pathogen-Free Wheatgrass Seeds when looking for where to buy wheatgrass seeds.

Read more about how to find the best wheatgrass seeds here.

Trays for Growing Wheatgrass

Wheatgrass can be grown in almost any flat container. If you don’t have the perfect container right off the bat, you can germinate your wheatgrass seeds in a mason jar while you find the right container.

Wheatgrass Seeds

I often repurpose plastic or metal takeout trays and store-bought produce containers. The trays are used to hold in the soil in which the wheatgrass grows. Like microgreens, wheatgrass seeds are not buried in the soil, but instead are laid on top of the soil to grow.

Does Wheatgrass Require Soil to Grow?

It is possible to grow wheatgrass without soil, but I have had much better results using soil. I use an organic sterile seed-starting potting soil which does not contain any chemical fertilizers or harmful pathogens. I find that the soil retains moisture, helping the seeds germinate. The wheatgrass also has a chance at gaining some extra nutrients from the soil.

growing wheatgrass with soil vs just in water (without soil)
The wheatgrass on the left was grown in sterile potting soil, while the wheatgrass on the right was simply sprouted in the tray without soil. Both trays were otherwise treated equally.

Using Your Homegrown Organic Wheatgrass

Once you’ve learnt how to grow wheatgrass, you can juice it at home. I actually don’t have a juicer, and prefer to add the whole wheatgrass to a smoothie. You’ll need a high-powered blender to cut through the fibres of the wheatgrass. I use a Vitamix, and my aunt loves her Blendtec. Either one of these machines is an excellent long-term kitchen investment.

How to Grow Wheatgrass - Home for the Harvest Gardening Blog

Learning how to grow wheatgrass is not only healthy and beautiful, but it will also save you some money. Buying organic wheatgrass can be very costly, whether you buy the grass at the grocery store or buy prepared wheatgrass juice from the juice bar. So why not try out a new skill while saving some money? You can also use your new wheatgrass growing skills to grow other microgreens.

Where to buy wheatgrass seeds and how to sprout them

Check out this article on how to plant an organic container herb garden!

Wheatgrass Printable Instructions

Wheatgrass printable

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Mary Jane

Mary Jane is a home gardener who loves creating healthy, welcoming spaces (indoors and out!) - About Mary Jane (https://www.homefortheharvest.com/authors/about-mary-jane-duford/)

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