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When to Plant Stevia in Lake Tomahawk, Wisconsin (54539)

Location

Lake Tomahawk, Wisconsin

ZIP Code

54539

USDA Zone

4a

Last Frost

Friday, May 15, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, March 6, 2026
Transplant Outdoors Friday, May 29, 2026

Pro Tip: Start Stevia seeds indoors 10 weeks before your last frost date, then transplant outdoors around Friday, May 29, 2026.

🌿 Plant Details

Scientific Name Stevia rebaudiana
Days to Maturity 90 days
Mature Height 18-24"
Spread 18"
Type Tender Perennial

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (consistent moisture)

↔️

Spacing

18" apart

🌱

Planting Depth

0.13" deep

Seeds typically germinate in 14-21 days

Ready to Plant Stevia in Lake Tomahawk?

Get your seeds now so they're ready by Friday, March 6, 2026.

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🤝 Good Companions

PepperTomatoBasil

⚠️ Avoid Planting Near

Fennel

Other Plants for Lake Tomahawk

Growing Stevia in Zone 4a

Stevia (Stevia rebaudiana) is a popular garden vegetable. In Lake Tomahawk, Wisconsin, which is in USDA Hardiness Zone 4a, you should start seeds indoors around Friday, March 6, 2026.

Your average last frost date is Friday, May 15, 2026. Plan to transplant your Stevia seedlings outdoors around Friday, May 29, 2026, about 2 weeks after your last frost date.