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When to Plant Sweet Pea in Hamilton, Pennsylvania (15744)

Location

Hamilton, Pennsylvania

ZIP Code

15744

USDA Zone

6a

Last Frost

Monday, April 20, 2026

📅 Planting Calendar

Direct Sow Outdoors Monday, March 23, 2026

Pro Tip: Sow Sweet Pea directly outdoors 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Lathyrus odoratus
Days to Maturity 65 days
Mature Height 48-72"
Spread 8"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

6" apart

🌱

Planting Depth

1" deep

Seeds typically germinate in 10-21 days

Ready to Plant Sweet Pea in Hamilton?

Get your seeds now so they're ready by Monday, March 23, 2026.

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🤝 Good Companions

CarrotRadishSpinach

⚠️ Avoid Planting Near

OnionGarlic

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Growing Sweet Pea in Zone 6a

Sweet Pea (Lathyrus odoratus) is a popular garden vegetable. In Hamilton, Pennsylvania, which is in USDA Hardiness Zone 6a, you should direct sow seeds around Monday, March 23, 2026.

Your average last frost date is Monday, April 20, 2026. Sweet Pea grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.