Stevia illustration

Growing Stevia in Zone 1b

Zone 1b 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

Indoor
Outdoor
Harvest
Mar 30Aug 28

Season: May 25 – Aug 28 (95 days)

Zone1b
Last FrostMay 25
First FrostAug 28
Season Length95 days
Days to Harvest60
SunFull Sun
Frost ToleranceNone
Spacing12/sqft

When to Plant Stevia in Zone 1b

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).

Frequently Asked Questions

When should I plant Stevia in Zone 1b?

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 1b?

The average last spring frost date for Zone 1b is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.

Can I grow Stevia in Zone 1b?

Yes. Stevia needs 60 days to harvest. Zone 1b has a 95-day growing season, which is sufficient.

What is the best month to plant Stevia in Zone 1b?

The best time to start Stevia in Zone 1b 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 1b, 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.

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