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When to Plant Sweet Potato in Marshfield, Missouri (65706)

Location

Marshfield, Missouri

ZIP Code

65706

USDA Zone

6b

Last Frost

Wednesday, April 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Wednesday, April 15, 2026

Pro Tip: Sow Sweet Potato directly outdoors around your last frost date when soil starts to warm.

🌿 Plant Details

Scientific Name Ipomoea batatas
Days to Maturity 100 days
Mature Height 12-18"
Spread 36"
Type Vine
Fruit Size Medium-Large (6-12 oz per root)

☀️ Growing Requirements

☀️

Sun

Full Sun (8+ hours)

💧

Water

Moderate (reduce as harvest approaches)

↔️

Spacing

12" apart

🌱

Planting Depth

4" deep

Seeds typically germinate in 14-21 days

Ready to Plant Sweet Potato in Marshfield?

Get your seeds now so they're ready by Wednesday, April 15, 2026.

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🤝 Good Companions

OkraDillThyme

⚠️ Avoid Planting Near

SquashSunflower

Other Plants for Marshfield

Growing Sweet Potato in Zone 6b

Sweet Potato (Ipomoea batatas) is a popular garden vegetable. In Marshfield, Missouri, which is in USDA Hardiness Zone 6b, you should direct sow seeds around Wednesday, April 15, 2026.

Your average last frost date is Wednesday, April 15, 2026. Sweet Potato grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.