🌿 When to Plant Thyme in Zone 1

Short answer: transplant Jun 15 – Jun 29. Here's the full schedule, built from zone 1's typical frost dates.

TaskWindow
Start seeds indoors
10–8 weeks before last frost
Apr 6 – Apr 20
Transplant outdoorsJun 15 – Jun 29
Zone 1 frost window
Jun 15 → Aug 25
~71 frost-free days
Spacing
9″ / 12″
plants / rows
Maturity
90–120 days
from transplant

Growing thyme in zone 1

From seed, thyme is slow — most gardeners start with a nursery plant or a cutting. Give it sun and sharp drainage, skip the fertilizer, and it becomes a permanent edging plant hardy through zone 5 winters.

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 thyme in zone 1?

Transplant Jun 15 – Jun 29, 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.

When should I start seeds indoors for thyme in zone 1?

Sow indoors Apr 6 – Apr 20 — that's 10 to 8 weeks before the typical Jun 15 last frost, giving sturdy transplants exactly when the garden is ready for them.

Can I direct sow thyme in zone 1?

Not usefully in zone 1 — thyme needs more growing time than direct sowing allows, which is why it's raised from transplants started indoors Apr 6 – Apr 20.