Growing Microgreens: A Guide to Indoor Urban Agriculture with Worm Tea

Microgreens are a popular and easy-to-grow option for indoor urban agriculture. These tiny greens pack a big punch of flavor and nutrition and are perfect for those who have limited space and resources. In this guide, we will focus on growing microgreens such as pea shoots, sunflower shoots, and wheatgrass under grow lights and on a windowsill, and also explore the benefits of using worm tea for microgreens.

Before getting started, it's important to understand the basic needs of microgreens. They require light, water, and warmth to grow. While grow lights are an excellent option for providing the light microgreens need, they can be expensive. A windowsill can provide a good source of natural light, but be sure to place the container in a location that receives at least 6 hours of direct sunlight daily.

When it comes to growing microgreens, the key is to provide them with the right amount of moisture and warmth. A windowsill can provide the warmth microgreens need, but it's important to keep an eye on the temperature and humidity levels. In general, microgreens should be kept in a location that stays between 60-70°F and has a humidity level of around 70%.

To grow microgreens on a windowsill, all you need is a container with drainage holes, seed-starting mix, and seeds. Fill the container with the seed-starting mix and sprinkle the seeds on top. Be sure to press the seeds into the soil and keep the soil moist but not waterlogged. Cover the container with plastic wrap or a lid to create a mini greenhouse effect, and place it in a location that receives at least 6 hours of direct sunlight daily.

Under grow lights, you'll need a tray or container with drainage holes, seed-starting mix, and seeds. Fill the container with the seed-starting mix and sprinkle the seeds on top. Be sure to press the seeds into the soil and keep the soil moist but not waterlogged. Place the container under grow lights and keep the lights on for at least 14 hours per day.

Now, let's talk about worm tea. Worm tea is a liquid fertilizer made from worm castings, which is a byproduct of vermiculture. It is rich in microorganisms and essential nutrients that can help plants grow stronger and healthier. To use worm tea for your microgreens, simply add a small amount to the water you use to water your microgreens. You can also use worm tea as a foliar spray, by diluting it with water and spraying it on the leaves of your microgreens.

For both windowsill and grow lights, it's important to keep an eye on the moisture level of the soil and to water as needed. Within a week or two, your microgreens should be ready to harvest. Simply snip the greens off just above the soil line and enjoy.

In conclusion, growing microgreens such as pea shoots, sunflower shoots, and wheatgrass is a great way to start indoor urban agriculture and to add healthy, fresh and delicious greens to your dishes. With a little bit of knowledge, care and the addition of worm tea, you can easily grow microgreens on a windowsill or under grow lights, year-round.