Growing Stevia in Zone 1a
Zone 1a has harsh winters and a short growing season. Start Stevia early indoors to maximize your harvest window. Last frost: May 25. First frost: Aug 28.
Planting Calendar
Season: May 25 – Aug 28 (95 days)
When to Plant Stevia in Zone 1a
Start Seeds Indoors: Mar 30
Start Stevia seeds indoors around Mar 30 (8 weeks before last frost). Optimal germination temperature: 75°F. Germinates in 7–21 days.
Transplant Outdoors: Jun 8
Transplant Stevia seedlings outdoors after Jun 8. Wait until soil temperature reaches 60°F. Space plants at 12/sqft. Harden off plants for a week before moving outside.
Harvest: Aug 7
First harvest approximately Aug 7 (~60 days from transplant). Continue harvesting until first frost (Aug 28).
Stevia in Other Zones
1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13bFrequently Asked Questions
When should I plant Stevia in Zone 1a?
Start Stevia seeds indoors around Mar 30. Transplant outdoors after Jun 8. Expect first harvest around Aug 7.
What is the last frost date for Zone 1a?
The average last spring frost date for Zone 1a is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.
Can I grow Stevia in Zone 1a?
Yes. Stevia needs 60 days to harvest. Zone 1a has a 95-day growing season, which is sufficient.
What is the best month to plant Stevia in Zone 1a?
The best time to start Stevia in Zone 1a is Mar. Begin seeds indoors around Mar 30, then transplant outdoors after the last frost date of May 25.
How long does Stevia take to harvest?
Stevia takes approximately 60 days from planting to harvest. In Zone 1a, expect your first harvest around Aug 7.
Plan Your Stevia Garden
Track Stevia from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Stevia Growing Guide