Colin McCrate of Seattle Urban Farm Company shares a few quick tips for getting started with microgreens.

Photo by: Jonathan Buckley/Gap Photos.

Use Microgreen Seed.

Places like Johnny’s Selected Seeds have mixes and packets of seeds specifically for growing as microgreens. Then as you learn more you can use regular seeds. I get a lot of mine from Fedco Seeds.

Pick Easy Varieties.

I’m drawn to mustards. They have a powerful flavor that I like, plus they’re one of the easiest types to grow. I also like growing cilantro microgreens (the ‘Santo’ variety). It takes a little longer to be usable (up to 3 weeks) but I cook Mexican food a lot so they’re wonderful to have.

Choose the Right Location.

Microgreens should not be exposed to freezing temperatures. If you keep them indoors, make sure it’s a spot with a little moisture and ventilation. If you need to grow them outside, grow them in a greenhouse that’s heated—or use heating pads. In locations with temperatures that rarely reach below freezing, an unheated greenhouse or cold frame should work.

Greenhouses Make It Easy.

I grow microgreens in a small 6- by 10-foot greenhouse. I have it in a full sun location and it works really well. A cold frame would also work well.

Avoid Humidity Tents.

Some people use tents to speed up germination, which is fine. But once the microgreens sprout, I don’t use them. If you keep the greenhouse warm and the soil moist, a tent isn’t needed. There’s also a greater risk of burning the greens if the weather warms up suddenly.

Get Good Seed Coverage.

Make sure the seed coverage of each planting cell is good. This way the microgreens grow in thick and support each other.

Ensure Soil Contact.

After laying down seed with good coverage, I take an unused tray and press the seeds down softly but firmly into the soil. But I’m sure not to bury the seeds in the soil. If the seeds get covered, the spouts grow with soil on the leaves, which is difficult to remove later.

Water from the Bottom.

When you first plant the seeds it’s OK to give them a light sprinkling from above to saturate the soil. Top water until they start to germinate, but from then on use bottom watering (place a larger tray below the tray with soil that you’ve put seed in). After 20 minutes, check the absorption and pour any remaining water out. With enough water, the soil should look and feel evenly moist. Bottom watering will reduce the chances of gray mold and damping off, a disease in seedlings caused by excessively wet growing conditions. These diseases are exacerbated by lack of air circulation, so a fan or proper ventilation is also a good idea.

Winter 2017 - Issue 197

This bonus content accompanies “Grow Your Own Superfood”—an article about the benefits of microgreens—in the Winter 2017 issue of Garden Design magazine. Click here to purchase this issue.

Want more? Subscribe to receive future issues of Garden Design.

RELATED:

Growing Salad Greens
Growing Edibles

Free NewsletterSign up for weekly gardening inspiration and design tips

Join thousands of design-conscious readers for exclusive offers, gardening inspiration and innovative design solutions for enjoying outdoor spaces.

*Name: *Email:

* Required Fields
We will never sell or distribute your email to any other parties or organizations.

More about the newsletter

Come on a journey with us! Explore amazing gardens, view beautiful plants, and gain insights from the world’s best designers. Click on the issue to preview its contents.

Summer 2017 - Issue 199Summer 2017 - Issue 199
Follow Us Garden Design Magazine Facebook Garden Design Magazine Twitter Garden Design Magazine Google Plus Garden Design Magazine Pinterest Garden Design Magazine Instagram Garden Design Magazine Youtube

Not Ready to Commit to a Subscription?

Try an issue of Garden Design magazine for free (we know you’ll love it)! Just pay $4.95 for shipping and handling.

With our free single-issue trial order, we will send you a copy of the Spring 2017 issue of Garden Design. Offer only available in the United States, and one per household.

Get your free issue!

Free Weekly Newsletter

Close