Updated: July 17, 2023

Stevia, also known as sweet leaf or sugar leaf, is a natural sweetener that has gained popularity in recent years as a healthier alternative to sugar. The plant itself is native to South America and has been used for centuries by indigenous people for its sweet taste. Growing stevia indoors allows you to have a fresh supply of this natural sweetener year-round. In this article, we will guide you on how to successfully grow stevia plants indoors.

Choosing the Right Location

When it comes to growing stevia indoors, selecting the right location is crucial. Stevia plants require at least six hours of direct sunlight each day to thrive. Therefore, it is important to place your plants near a south-facing window or under artificial grow lights that provide full spectrum lighting. This will ensure that your stevia plants receive adequate light for healthy growth.

Selecting the Right Container

Choosing the right container for your stevia plants is essential for their well-being. Opt for a pot that is at least 12 inches in diameter and has drainage holes at the bottom. Stevia prefers well-draining soil, so using a pot with good drainage will prevent waterlogging and root rot. Additionally, make sure the container is deep enough to accommodate the root system of the plant.

Preparing the Soil

Stevia plants thrive in loamy soil that is rich in organic matter. Before planting your stevia seeds or seedlings, prepare the soil by mixing equal parts of potting soil, compost, and perlite or vermiculite. This will ensure good water retention while providing adequate drainage. Additionally, you can add some organic fertilizer to enrich the soil and promote healthy growth.

Planting Stevia Seeds or Seedlings

If you decide to grow stevia from seeds, start by sowing them in small pots or seed trays filled with the prepared soil mix. Sow the seeds about 1/4 inch deep and lightly cover them with soil. Keep the soil consistently moist but not waterlogged, as excess moisture can lead to fungal diseases. Place the pots or trays in a warm location with a temperature of around 70°F (21°C) until the seeds germinate, which usually takes about two weeks.

Alternatively, you can purchase stevia seedlings from a nursery or garden center. Transplant the seedlings into the prepared containers, making sure to space them at least 12 inches apart. Gently firm the soil around the plants and water them thoroughly.

Watering and Fertilizing

Proper watering is essential for the healthy growth of stevia plants. Keep the soil consistently moist but not soggy. Water your stevia plants whenever the top inch of soil feels dry to the touch. Avoid overwatering as it can lead to root rot and other fungal diseases.

As for fertilization, stevia plants benefit from a balanced organic fertilizer applied every four to six weeks during the growing season. Follow the instructions on the fertilizer package for proper dosage and application.

Pruning and Harvesting

Regular pruning is important to ensure compact and bushy growth in stevia plants. Pinch off the top two sets of leaves when your stevia plant reaches a height of 6-8 inches. This will encourage side branching and prevent the plant from becoming leggy.

When it comes to harvesting stevia leaves, wait until your plant reaches maturity, which typically occurs after three to four months of growth. Harvesting is best done in the morning when the essential oils are at their peak concentration. Gently pluck off the fully mature leaves from each stem, leaving some leaves behind for continued growth.

Drying and Storing Stevia Leaves

To preserve your harvested stevia leaves for later use, it is important to dry them properly. Spread out the leaves in a single layer on a drying rack or a clean, dry surface. Place them in a well-ventilated area away from direct sunlight. Allow the leaves to dry for about a week or until they become brittle.

Once the leaves are fully dried, store them in an airtight container away from light and moisture. You can either use them as whole leaves or grind them into a fine powder using a coffee grinder. The powdered stevia can be used as a natural sweetener in various culinary preparations.

Conclusion

Growing stevia plants indoors allows you to have a fresh supply of this natural sweetener year-round. By choosing the right location, container, and soil, and properly managing watering, fertilizing, pruning, and harvesting, you can successfully grow stevia plants indoors. Enjoy the satisfaction of cultivating your very own sweet leaf and reap the benefits of this healthier sugar alternative.