How to Grow Stevia

Start Stevia seeds indoors 10 weeks before your last frost date, then transplant outdoors 2 weeks after the last frost. Use the search on this page to find exact dates for your ZIP code or city.

Stevia typically matures in about 90 days from planting. Exact timing varies by variety, soil conditions, and local climate.

Stevia should be started indoors 10 weeks before the last frost date. This gives seedlings time to establish before being transplanted outside after frost danger has passed.

Stevia requires full sun (6-8 hours) to thrive.

Space Stevia plants 18 inches apart to allow adequate airflow and root development.

Stevia has moderate (consistent moisture) water needs. Consistent moisture is important especially during germination and early growth.

Yes — seed saving difficulty for Stevia is rated moderate. Harvest seed heads when brown and dry in fall, just before the first frost. Strip dried flower heads, separate chaff, surface sow immediately or store cool and dry.

Properly dried and stored Stevia seeds remain viable for up to 2 years. Store in a cool, dark, dry location in an airtight container with a silica gel packet for best results.

Yes — Stevia is open-pollinated, meaning seeds saved from your harvest will grow plants true to the parent variety. This makes it an excellent candidate for building a self-sustaining garden.