🥬 When to Plant Bok Choy in Zone 5

Short answer: sow Apr 1 – Apr 15. Here's the full schedule, built from zone 5's typical frost dates.

TaskWindow
Direct sowApr 1 – Apr 15
Fall planting
counted back from first frost
Aug 17 – Aug 31
Zone 5 frost window
Apr 22 → Oct 12
~173 frost-free days
Spacing
8″ / 15″
plants / rows
Maturity
45–55 days
from sowing

Growing bok choy in zone 5

Bok choy bolts at the first sign of stress in spring, so fall sowings are usually more reliable. Harvest whole heads or pull outer stalks; baby bok choy is ready in a month.

Zone 5 covers southern New England, Great Lakes, Iowa, Nebraska, Colorado Front Range — a classic four-season garden climate with room for spring and fall plantings. 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 5's typical frost dates (last frost ~Apr 22, first frost ~Oct 12). 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 bok choy in zone 5?

Direct sow Apr 1 – Apr 15, counted from zone 5's typical last frost around Apr 22. As a hardy crop it tolerates the light frosts on either side of that window.

Can I direct sow bok choy in zone 5?

Yes — direct sow Apr 1 – Apr 15. This crop prefers direct sowing; its roots dislike transplanting.

Can I plant bok choy for a fall harvest in zone 5?

Yes — sow Aug 17 – Aug 31, counted back from the typical Oct 12 first frost so plants mature before serious cold. Light fall frosts improve flavor rather than ending the crop.