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🌿 Herb medium

Growing Stevia in Anchorage

🇺🇸 Zone 1 Planting Guide · Subarctic climate

USDA Zone 1 120 frost-free days 60-90 days to harvest

Quick Answer: Growing Stevia in Anchorage

Yes, you can grow Stevia in Anchorage, US! Plant during May, Jun, Jul, Aug for best results. Anchorage is in USDA Zone 1 with a Subarctic climate, offering 120 frost-free days per year. The difficulty level is medium, and Stevia takes 60-90 days to harvest. Stevia needs full sun and regular watering.

Climate Match Analysis

Moderate Match Anchorage + Stevia

Anchorage's climate requires careful timing. Winter lows (-15°C) drop below Stevia's minimum (10°C), so avoid cold months. Follow the recommended planting months for success.

Stevia tolerates 10°C to 35°C
Optimal: 18°C - 28°C
Anchorage range -15°C to 18°C

Anchorage Climate Data

USDA Zone
1
Frost-Free
120days
Winter Low
-15°C
Summer High
18°C
Rainfall
406mm/yr
Climate
Dfc
Subarctic

Stevia Planting Calendar for Anchorage

Green months show the best time to plant Stevia in Anchorage

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Plant Stevia Not recommended

Stevia Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

60-90

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Stevia

Harvest leaves before flowering for best sweetness. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and invites root rot. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Frost tolerance: Stevia is NOT frost tolerant — wait until after the last frost in Anchorage.

How to Grow Stevia in Anchorage

Anchorage, US is in USDA Hardiness Zone 1 with a Subarctic climate (Köppen Dfc). With winter lows of -15°C and summer highs of 18°C, the growing season spans approximately 120 frost-free days. Stevia grows well with some gardening knowledge in this climate.

Stevia thrives in temperatures between 18°C and 28°C, requiring full sun and regular watering. In Anchorage, the best months to plant Stevia are May, June, July, August. Stevia is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 60-90 days after planting.

Anchorage receives only 406mm of annual rainfall, so consistent irrigation will be essential for growing Stevia successfully.

Other Plants That Grow in Anchorage

More plants you can grow alongside Stevia in Anchorage

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Frequently Asked Questions

Can I grow stevia in Anchorage?

Yes! Stevia can be successfully grown in Anchorage, US. Anchorage is in USDA Hardiness Zone 1 with a Subarctic climate. The difficulty level for growing Stevia here is rated "medium". The best months to plant are May, June, July, August.

When should I plant stevia in Anchorage?

In Anchorage, the recommended planting months for Stevia are May, June, July, August. Anchorage has 120 frost-free days per year, with winter lows of -15°C and summer highs of 18°C. Since Stevia is not frost tolerant, make sure to plant after the last frost date.

How long does stevia take to grow in Anchorage?

Stevia typically takes 60-90 days from planting to harvest. In Anchorage's Subarctic climate with 120 frost-free days, you have enough time with good planning to grow Stevia to maturity. Harvest leaves before flowering for best sweetness. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and invites root rot. Wait until soil warms to at least 18°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Can I grow stevia indoors in Anchorage?

Stevia can potentially be grown indoors in Anchorage with proper conditions. It requires full sun (6+ hours of direct light — a south-facing window or grow lights recommended). Indoor growing extends your season beyond the May, Jun, Jul, Aug outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant stevia in Anchorage?

Plant Stevia in Anchorage during May, June, July, August. These are the optimal months based on Anchorage's USDA Zone 1 climate, 120 frost-free days, and temperature range of -15°C to 18°C.

Is stevia hard to grow in Anchorage?

Stevia is rated "medium" to grow in Anchorage. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Stevia in Anchorage is Moderate.

What grows well with stevia in Anchorage?

In Anchorage, you can grow many companion plants alongside Stevia. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Anchorage's Zone 1 climate.

Does stevia need full sun in Anchorage?

Stevia requires full sun. In Anchorage, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.

Last updated: March 2026 · Climate data from NOAA, FAO, USDA

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