When to Plant Arugula in Fort Knox, Kentucky (40121)

Location

Fort Knox, Kentucky

ZIP Code

40121

USDA Zone

Last Frost

Friday, April 10, 2026

📅 Planting Calendar

Direct Sow Outdoors Friday, March 13, 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 Fort Knox?

Get your seeds now so they're ready by Friday, March 13, 2026.

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Growing Arugula in Zone 7a

Arugula (Eruca vesicaria subsp. sativa) is a popular garden vegetable. In Fort Knox, Kentucky, which is in USDA Hardiness Zone 7a, you should direct sow seeds around Friday, March 13, 2026.

Your average last frost date is Friday, April 10, 2026. Arugula grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.