When to Plant Parsnip in Boulder, Colorado (80310)
Location
Boulder, Colorado
ZIP Code
80310
USDA Zone
6a
Last Frost
Monday, April 20, 2026
📅 Planting Calendar
Direct Sow Outdoors Monday, February 23, 2026
Pro Tip: Sow Parsnip directly outdoors 8 weeks before your last frost date.
🌿 Plant Details
Scientific Name Pastinaca sativa
Days to Maturity 100 days
☀️ Growing Requirements
☀️
Sun
Full Sun
💧
Water
Regular
Seeds typically germinate in 8-21 days
Ready to Plant Parsnip in Boulder?
Get your seeds now so they're ready by Monday, February 23, 2026.
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🤝 Good Companions
Fruit Trees
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Growing Parsnip in Zone 6a
Parsnip (Pastinaca sativa) is a popular garden vegetable. In Boulder, Colorado, which is in USDA Hardiness Zone 6a, you should direct sow seeds around Monday, February 23, 2026.
Your average last frost date is Monday, April 20, 2026. Parsnip grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.