Updated: July 2, 2023

Stevia, also known as sweetleaf or sugarleaf, is a popular natural sweetener derived from the leaves of the Stevia rebaudiana plant. This plant has gained significant attention in recent years due to its ability to provide sweetness without adding calories or raising blood sugar levels. If you are considering growing your own stevia plant, one important question you may have is: How tall does a stevia plant grow? In this article, we will explore the growth habits and potential height of the stevia plant.

Understanding the Stevia Plant

Before delving into the height of a stevia plant, it is essential to understand its growth habits and characteristics. The stevia plant is a perennial shrub that belongs to the Asteraceae family, which includes sunflowers and daisies. It is native to South America, particularly Paraguay and Brazil, where it has been used for centuries as a natural sweetener.

Stevia plants typically grow up to 2-3 feet in height under normal growing conditions. However, various factors can affect their growth and size, including climate, soil conditions, and cultivation practices.

Factors Affecting Stevia Plant Height

Climate

The climate plays a crucial role in determining the height of a stevia plant. Stevia thrives in warm temperatures between 60°F and 85°F (15°C and 30°C). In regions with cooler climates, the plant may not reach its maximum height potential. Similarly, extreme heat can also hinder its growth. Ideally, a moderate temperature with plenty of sunlight is optimal for stevia plants to grow to their full potential.

Soil Conditions

Stevia plants prefer well-draining soil with a pH range between 6.5 and 7.5. The soil should be rich in organic matter and nutrients to support healthy growth. Sandy loam or loamy soil types are considered ideal for stevia cultivation. Poor soil conditions, such as heavy clay or waterlogged soil, can stunt the growth of the plants.

Cultivation Practices

Proper cultivation practices can significantly impact the height of a stevia plant. Adequate spacing between plants allows for proper air circulation and access to sunlight, resulting in healthier and taller plants. Overcrowding can lead to competition for resources and stunted growth. Regular watering, fertilization, and weed control are also important factors to consider for optimal growth.

Ideal Growing Conditions for Stevia Plants

To ensure your stevia plants reach their maximum height potential, it is essential to provide them with the ideal growing conditions. Here are some tips for cultivating healthy and tall stevia plants:

  1. Planting: Start by selecting a sunny location in your garden or patio where the plants can receive at least six hours of direct sunlight each day. The planting area should be well-draining, and the soil should be prepared by adding compost or organic matter to improve its fertility.

  2. Seeds vs. Transplants: Stevia plants can be grown from seeds or transplants. If you choose to grow from seeds, start them indoors about 6-8 weeks before the last expected frost date. Transplants can be directly planted in the garden after the threat of frost has passed.

  3. Spacing: Allow ample space between each stevia plant to ensure proper air circulation and access to sunlight. A spacing of 12-18 inches between plants is recommended.

  4. Watering: Stevia plants require regular watering to maintain moisture levels in the soil. Keep the soil consistently moist but avoid overwatering, as it can lead to root rot and stunted growth.

  5. Fertilization: Apply a balanced fertilizer, such as a 10-10-10 NPK (nitrogen-phosphorus-potassium) blend, during the growing season. Follow the recommended dosage instructions on the fertilizer packaging.

  6. Weed Control: Regularly remove weeds from the planting area to prevent competition for nutrients and moisture. Mulching around the plants can help suppress weed growth and conserve soil moisture.

By providing these optimal growing conditions, you can expect your stevia plants to reach their maximum height potential.

Harvesting Stevia Leaves

Once your stevia plants have reached their desired height and have matured, you can start harvesting the leaves. The best time to harvest stevia leaves is in the morning when their sugar content is at its highest.

To harvest the leaves, simply cut off the branches at the desired height using sharp scissors or pruners. Avoid cutting too close to the base, as this can hinder regrowth. After harvesting, the leaves can be dried and processed to extract the sweetening compounds.

Final Thoughts

The height of a stevia plant typically ranges from 2-3 feet, but various factors can influence its growth potential. By providing ideal growing conditions, including a suitable climate, well-draining soil, and proper cultivation practices, you can ensure that your stevia plants reach their maximum height potential and provide you with a bountiful supply of natural sweetener. Happy gardening and enjoy the sweetness of homegrown stevia!