Updated: July 4, 2023

Stevia, also known as sweet leaf or sugar leaf, is a popular natural sweetener that comes from the Stevia rebaudiana plant. Growing your own stevia at home can be a rewarding experience, especially if you have a sweet tooth but want to limit your intake of artificial sweeteners. To successfully grow stevia, it is important to understand the planting depth requirements for this unique plant.

Understanding Stevia’s Growth Habits

Before diving into the planting depth requirements, it is crucial to have a basic understanding of how stevia grows. Stevia is a perennial plant native to South America and thrives in warmer climates. It is a member of the Asteraceae family and shares characteristics with other members such as sunflowers and daisies.

Stevia plants typically reach a height of about 1-3 feet and have small, oval-shaped leaves. The sweetness of stevia comes from its naturally occurring compounds called steviol glycosides, which are found in the leaves. These glycosides can be up to 400 times sweeter than regular table sugar.

Planting Depth for Stevia

When it comes to planting stevia, the depth requirement is not as crucial as some other plants. Stevia seeds are tiny and delicate, making them difficult to handle individually. Therefore, most gardeners opt to start their stevia plants from cuttings or transplants rather than seeds.

If starting from cuttings or transplants, you will want to dig a hole that is roughly the same size as the root ball or container that your plant came in. Gently place the plant into the hole and fill it in with soil, ensuring that the crown of the plant (where the stems meet the roots) is level with or slightly above the soil surface.

The reason for planting stevia slightly above ground level is to prevent the crown from rotting. Stevia plants do not tolerate wet or waterlogged soil well, so ensuring good drainage is essential.

Soil Conditions for Stevia

In addition to planting depth, it is important to consider the soil conditions in which stevia thrives. Stevia prefers well-draining soil that is loose and fertile. A pH level between 6.5 and 7.5 is ideal for optimal growth. If your soil is heavy or clay-like, consider amending it with organic matter such as compost or peat moss to improve its drainage and texture.

Before planting, it is a good idea to prepare the soil by removing any weeds or grass and loosening it up with a garden fork or tiller. This will allow the roots of your stevia plant to penetrate the soil easily and establish a strong foundation.

Sunlight Requirements

Stevia is a sun-loving plant that thrives in full sunlight. It requires at least six hours of direct sunlight per day to grow and produce sweet leaves. Therefore, when choosing a location for planting your stevia, make sure it receives ample sunlight throughout the day.

If you live in an area with scorching summers, providing some afternoon shade can help protect your stevia plant from excessive heat stress. You can achieve this by planting it near taller plants or using shade cloth if necessary.

Watering Needs for Stevia

Stevia plants have moderate water requirements and prefer consistent moisture without being overwatered. It is important to strike a balance between keeping the soil moist and avoiding waterlogged conditions.

Water your stevia plant deeply but infrequently, allowing the top inch of soil to dry out before watering again. This will encourage the roots to grow deeper in search of water and promote a healthier overall plant.

To help retain moisture and reduce weed growth, consider applying a layer of organic mulch around the base of your stevia plant. This will also help regulate soil temperature and conserve water during hot summer months.

Maintenance Tips for Growing Stevia

To ensure the health and productivity of your stevia plant, regular maintenance is necessary. Here are a few tips to keep in mind:

  1. Fertilization: Stevia plants benefit from a light feeding of organic fertilizer once a month during the growing season. Avoid excessive nitrogen as it can promote more leaf growth at the expense of sweetness.

  2. Pruning: Pinch back the tips of your stevia plant regularly to encourage bushier growth and prevent it from becoming leggy. This will also help maintain a compact shape and make harvesting easier.

  3. Pest and Disease Control: While stevia is generally resistant to pests and diseases, it is still important to keep an eye out for common garden problems such as aphids or powdery mildew. Regularly inspect your plants and take appropriate measures if any issues arise.

  4. Harvesting: Once your stevia plant reaches a height of about 8-12 inches, you can start harvesting the leaves. Use sharp scissors or pruners to cut off the top third of each stem, leaving enough foliage for the plant to continue growing. Dry the harvested leaves in a well-ventilated area until they become brittle, then crush them into a fine powder or use them as a natural sweetener in their dried form.

By following these guidelines and understanding the planting depth requirements for stevia, you can successfully grow this sweet leaf plant in your own garden. Enjoy the satisfaction of harvesting your own natural sweetener while adding beauty and versatility to your outdoor space!