When to Plant Arugula in Idaho Springs, Colorado (80452)

Location

Idaho Springs, Colorado

ZIP Code

80452

USDA Zone

Last Frost

Saturday, April 25, 2026

📅 Planting Calendar

Direct Sow Outdoors Saturday, March 28, 2026

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

🌿 Plant Details

Scientific Name Eruca vesicaria subsp. sativa

Days to Maturity 40 days

Mature Height 6-12"

Spread 6"

Type Leaf

Fruit Size N/A

☀️ Growing Requirements

☀️

Sun

Partial Shade to Full Sun

💧

Water

Regular (keep moist)

↔️

Spacing

6" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 3-7 days

Ready to Plant Arugula in Idaho Springs?

Get your seeds now so they're ready by Saturday, March 28, 2026.

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Growing Arugula in Zone 5b

Arugula (Eruca vesicaria subsp. sativa) is a popular garden vegetable. In Idaho Springs, Colorado, which is in USDA Hardiness Zone 5b, you should direct sow seeds around Saturday, March 28, 2026.

Your average last frost date is Saturday, April 25, 2026. Arugula grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.