Grow Stevia rebaudiana for its naturally sweet leaves that can be used fresh, dried, or steeped in teas. In frost-free climates it can behave like a tender perennial, while in cooler regions you can enjoy it as a warm-season annual or keep it in a pot to bring indoors.
Give it full sun for sturdy growth and strong leaf production, or offer partial shade where summers are hot. Plant in a well-drained, fertile soil and keep the root zone evenly moist. Avoid soggy conditions, since overly wet soil can lead to root problems.
At maturity, stevia typically forms an upright, leafy plant about 24-36 inches tall, and it fits easily into herb gardens, mixed borders, and patio containers. Regular pinching of the stem tips encourages branching and a fuller, bushier plant.
Harvest by snipping stems or picking leaves as needed. Many gardeners prefer to remove flower clusters so the plant puts more energy into leaf growth and to keep the flavor focused on the leaves. Use the leaves fresh, or dry them and store in an airtight container for later use.
For best results, provide consistent moisture, good drainage, and occasional feeding in containers. Protect from frost; if you want to carry it over, move potted plants inside to a bright window before cold weather.