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When to Plant Squash in Nine Mile Falls, Washington (99026)

Location

Nine Mile Falls, Washington

ZIP Code

99026

USDA Zone

6b

Last Frost

Wednesday, April 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Wednesday, March 4, 2026

Pro Tip: Squash can be directly sown outdoors. Plant 6 weeks before your last frost date.

🌿 Plant Details

Scientific Name Cucurbita moschata
Days to Maturity 90 days
Mature Height 24-36"
Spread 72"
Type Vine
Fruit Size Large (2-5 lbs)

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1 inch/week)

↔️

Spacing

48" apart

🌱

Planting Depth

1" deep

Seeds typically germinate in 7-14 days

🤝 Good Companions

CornBeanRadishMarigold

⚠️ Avoid Planting Near

Potato

Other Plants for Nine Mile Falls

Growing Squash in Zone 6b

Squash (Cucurbita moschata) is a popular garden vegetable. In Nine Mile Falls, Washington, which is in USDA Hardiness Zone 6b, you should direct sow seeds around Wednesday, March 4, 2026.

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