🌿 When to Plant Arugula in Zone 1

Short answer: sow May 11 – May 25. Here's the full schedule, built from zone 1's typical frost dates.

TaskWindow
Direct sowMay 11 – May 25
Fall planting
counted back from first frost
Jul 14 – Jul 28
Zone 1 frost window
Jun 15 → Aug 25
~71 frost-free days
Spacing
4″ / 10″
plants / rows
Maturity
30–40 days
from sowing

Growing arugula in zone 1

Arugula is one of the fastest crops you can grow — sow thickly, cut young, and re-sow every couple of weeks. Heat turns it sharp and sends it to seed, so treat it as a spring and fall crop.

Zone 1 covers interior and Arctic Alaska — extremely short season — most crops need transplants, season extension, or a greenhouse. Zone dates are medians: frost timing varies within a zone with elevation and terrain, so treat these windows as a solid default and refine them with your own city’s dates below.

Make it local

These windows use zone 1's typical frost dates (last frost ~Jun 15, first frost ~Aug 25). For windows computed from your frost dates, run the ZIP code frost lookup and open the planting calendar — it remembers your city. The seed starting scheduler turns the whole seed rack into one printable, date-sorted list.

Frequently asked questions

When do I plant arugula in zone 1?

Direct sow May 11 – May 25, counted from zone 1's typical last frost around Jun 15. As a hardy crop it tolerates the light frosts on either side of that window.

Can I direct sow arugula in zone 1?

Yes — direct sow May 11 – May 25. This crop prefers direct sowing; its roots dislike transplanting.

Can I plant arugula for a fall harvest in zone 1?

Yes — sow Jul 14 – Jul 28, counted back from the typical Aug 25 first frost so plants mature before serious cold. Light fall frosts improve flavor rather than ending the crop.