How to Grow Tomatillo Plant Indoors

Tomatillos, also known as husk tomatoes, are a versatile and flavorful addition to any garden. These small green fruits are widely used in Mexican cuisine and can be enjoyed in various dishes, including salsas, sauces, and soups. While tomatillo plants are typically grown outdoors, it is possible to cultivate them indoors with a little bit of effort and care. In this article, we will guide you through the process of growing tomatillo plants indoors so you can enjoy fresh homegrown tomatillos all year round.

Choosing the Right Variety

Before you start growing tomatillo plants indoors, it is important to choose the right variety. Some tomatillo varieties are better suited for indoor cultivation than others. Look for compact or dwarf varieties that have been specifically bred for container gardening. These varieties tend to have a smaller stature and are more suitable for indoor growing conditions.

Some popular tomatillo varieties that perform well indoors include:

“Toma Verde”: This is the most common variety of tomatillo and is known for its tart flavor.
“Purple Coban”: This variety produces purple-colored fruits and has a slightly sweeter taste.
“De Milpa”: This variety is known for its high yield and is perfect for salsa making.

Starting from Seeds

To begin growing tomatillo plants indoors, you will need to start from seeds. You can purchase tomatillo seeds from your local nursery or online seed suppliers. Here’s how you can get started:

Fill a seed tray or small containers with a well-draining potting mix.
Moisten the soil before sowing the seeds.
Sow the seeds about ¼ inch deep into the soil, spacing them about 2 inches apart.
Cover the seeds lightly with soil and mist them with water.
Place the tray or containers in a warm location, such as a sunny windowsill or under grow lights.
Keep the soil consistently moist but not waterlogged.
Germination should occur within 1-2 weeks.

Providing Optimal Growing Conditions

To ensure the success of your indoor tomatillo plants, it is essential to provide them with optimal growing conditions. Here are some key factors to consider:

Light

Tomatillo plants thrive in full sun, so it is important to provide them with adequate light. Place your indoor plants near a south-facing window where they will receive at least 8 hours of direct sunlight per day. If natural light is insufficient, you can supplement with artificial grow lights. Position the lights about 6 inches above the plants and keep them on for 12-14 hours a day.

Temperature

Tomatillo plants prefer warm temperatures between 70-80°F (21-27°C) during the day and slightly cooler temperatures around 60-70°F (15-21°C) at night. Avoid exposing the plants to extreme temperature fluctuations or drafts, as this can cause stress and hinder their growth.

Humidity

Tomatillo plants thrive in moderate humidity levels. If your indoor environment is too dry, you can increase humidity by placing a tray filled with water near the plants or by using a humidifier.

Watering

Water your tomatillo plants regularly to keep the soil evenly moist. However, be cautious not to overwater as it can lead to root rot. Allow the top inch of soil to dry out slightly between waterings and always use well-draining pots or containers.

Fertilizing

To promote healthy growth and fruit production, feed your tomatillo plants with a balanced fertilizer every two weeks during the growing season. Look for a fertilizer specifically formulated for vegetable plants and follow the instructions on the package for application rates.

Transplanting and Container Size

As your tomatillo plants grow, they will need to be transplanted into larger containers. Choose pots or containers that are at least 12 inches deep and have drainage holes to prevent waterlogging. Transplant your seedlings once they have developed a few sets of true leaves, being careful not to disturb the roots.

When transplanting, gently remove the seedling from its original container, loosen the roots slightly, and place it in the new container at the same depth it was previously growing. Fill the gaps with fresh potting mix and lightly press down to secure the plant. Water thoroughly after transplanting to help settle the soil.

Supporting and Pruning

As your tomatillo plants grow taller, they may require support to prevent them from toppling over. You can use stakes or cages to provide support for the plants. Simply insert the stake or cage into the soil near the base of the plant and tie the main stem loosely to the support structure as it grows.

Pruning is also important for maintaining a healthy and productive tomatillo plant. Regularly pinch off any suckers or side shoots that emerge between the main stem and branches. This will promote better airflow and help prevent diseases.

Pollination

Tomatillos are self-fertile plants, meaning they can pollinate themselves. However, indoor environments may lack sufficient air circulation for proper pollination. To ensure good fruit set, gently shake or tap the main stem of the plant every few days when flowers are present. This will help release pollen and facilitate pollination.

Harvesting

Tomatillos are ready to harvest when they fill out their husks completely and turn a vibrant green or purple color, depending on the variety. The husks may also start to split open slightly when the fruits are ripe. Gently twist or cut the fruits from the plant, being careful not to damage the husks.

Harvested tomatillos can be stored in a cool, dry place for up to two weeks. Alternatively, you can remove the husks, wash the fruits, and store them in the refrigerator for longer shelf life.

Conclusion

Growing tomatillo plants indoors is a rewarding experience that allows you to enjoy fresh and flavorful fruits throughout the year. By choosing the right variety, providing optimal growing conditions, and following proper care techniques, you can successfully cultivate tomatillos in your indoor garden. So why not give it a try and add this delicious and versatile ingredient to your culinary adventures? Happy gardening!