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How to Grow Microgreens

Go from seed to harvest in just a few weeks.

Microgreens

A bowl of freshly harvested microgreens.

Check the menu of a fine restaurant or the produce section of a specialty grocery store, and you're likely to spy microgreens: tiny, delicate greens that add color, texture and flavor to a variety of foods as a garnish or ingredient.

 
Slideshow
 
 
Slideshow: How to Grow Microgreens
Microgreens seeds

This blend of Microgreens Seeds includes flavorful arugula, ultra-nutritious broccoli and mild red chard. Blended by our friends at High Mowing Organic Seeds, the 4 oz. packet contains over 12,000 seeds, enough for months of harvests.

Big on nutrition and flavor, microgreens can be expensive to purchase. But they can also be grown cost-effectively at home, in a tiny space and with simple supplies. If you have a sunny windowsill, a shallow container, some potting mix and suitable seeds, you've got all the essentials for growing your own microgreens.

What are microgreens? Also known as "vegetable confetti," microgreens are sometimes confused with sprouts — germinated seeds that are eaten root, seed and shoot. Microgreens, however, include a variety of edible immature greens, harvested with scissors between 10 and 14 days after germination, when the plants are up to 2 inches tall. The stem, cotyledons (or seed leaves) and first set of true leaves are all edible.

Which seeds work best? Salad greens, leafy vegetables, herbs and even edible flowers can be grown as microgreens, though some varieties are better suited than others. Beginners often start by growing one type of seed, such as broccoli, cauliflower, cabbage, mustard, chia, sunflower or buckwheat — among the easiest-to-grow varieties of microgreens — in a single container. (You can easily grow different seeds in several containers, and mix your microgreens after harvesting.)

Microgreens Growing System

The Microgreens Grow System makes it fast, easy and affordable to grow your own microgreens. The kit includes one planting tray, one brick of Eco-co® Coir Seedstarting Mix, 1.8 oz. of Easy Grow fertilizer, and a 4 oz. packet of Microgreens Seeds, enough for multiple plantings.

Microgreens on a windowsill

Newly germinated microgreens, growing on a south-facing windowsill.

Microgreens growing under lights

Microgreens growing under the lights of a Sunlite Garden.

Where do I begin? Start with a warm, sunny windowsill (direct sunlight from a south-facing window is ideal) and a small, clean container. Plastic take-out dishes and disposable pie plates work well, as do clear fruit or salad boxes. If your chosen container doesn't have built-in drainage, poke a few drainage holes in the bottom. For an all-in-one solution, use the Microgreens Grow System. Then, prepare to plant:

1. Read the seed packet to see if there are any special instructions.

2. Cover the bottom of the container with an inch or two of moistened potting soil or mix. Flatten and level it with your hand or a small piece of cardboard, taking care not to over-compress the soil.

3. Scatter seeds evenly on top of the soil. Press gently into the soil using your hand or the cardboard.

4. Cover the seeds with a thin layer of soil. Dampen the surface with a mister. If you prefer, you can skip this step and instead cover the container with a clear lid or plastic wrap until the seeds are sprouted.

5. While waiting for sprouts to appear, usually within three to seven days, use the mister once or twice daily to keep the soil moist but not wet.

6. Once seeds have sprouted, remove the cover (if you've used one) and continue to mist once or twice a day.

Big on Nutrition

Read the blog post, Flavorful Microgreens Pack Big Nutritional Punch

Microgreens need about four hours daily of direct sunlight to thrive. In winter months, some may need even more. Leggy, pale greens are a sign of not enough sunlight. Light needs can also be satisfied with a grow light that has a low heat output — you don't want to scorch your delicate greens.

If your climate is suitable, microgreens can be also be grown outdoors in the garden, under shade. Like all fragile seedlings, you'll need to protect them from weather extremes and drying winds, not to mention hungry garden pests.

When do I harvest? Depending upon the type of seeds you've selected, your microgreens will be ready to harvest about two to three weeks after planting. Look for the first set of "true leaves" as a sign of readiness. Then grab your scissors and snip the greens just above the soil line.

To serve, wash the microgreens with clear water and dry well with paper towels or a salad spinner. Harvest and serve them immediately for the freshest flavor, and add to soups, salads, sandwiches or main dishes. Store remaining cut microgreens in a plastic bag in your refrigerator.

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