🧅 When to Plant Leeks in Zone 9

Short answer: transplant Jan 23 – Feb 6. Here's the full schedule, built from zone 9's typical frost dates.

TaskWindow
Start seeds indoors
10–8 weeks before last frost
Dec 12 – Dec 26
Transplant outdoorsJan 23 – Feb 6
Zone 9 frost window
Feb 20 → Dec 1
~284 frost-free days
Spacing
6″ / 12″
plants / rows
Maturity
100–120 days
from transplant

Growing leeks in zone 9

Drop pencil-thick transplants into 6-inch holes and let rain fill them in — the buried stem blanches white. Leeks hold in the garden deep into winter; harvest as needed rather than all at once.

Zone 9 covers gulf Coast, central Florida, central California, Phoenix and Tucson — summer heat is the limiting factor — many "spring" crops grow best in fall and winter. 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 9's typical frost dates (last frost ~Feb 20, first frost ~Dec 1). 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 leeks in zone 9?

Transplant Jan 23 – Feb 6, counted from zone 9's typical last frost around Feb 20. As a hardy crop it tolerates the light frosts on either side of that window.

When should I start seeds indoors for leeks in zone 9?

Sow indoors Dec 12 – Dec 26 — that's 10 to 8 weeks before the typical Feb 20 last frost, giving sturdy transplants exactly when the garden is ready for them.

Can I direct sow leeks in zone 9?

Not usefully in zone 9 — leeks needs more growing time than direct sowing allows, which is why it's raised from transplants started indoors Dec 12 – Dec 26.