DibbleWhen to plant leeks in Zone 9
In Zone 9, the last spring frost usually passes around March 1 and the first fall frost arrives around December 1, leaving about 275 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Very long season. Plant cool crops in fall and winter; manage summer heat.
Planting windows for leeks in Zone 9
| Task | Window |
|---|---|
| Start seeds indoors | Dec 21 to Jan 4 |
| Transplant | Feb 15 to Mar 1 |
| Estimated harvest | Jun 15 to Jul 30 |
The harvest estimate counts 120 days to maturity, then a picking window of about 45 days. These windows use typical frost dates for Zone 9; Dibble pins them to your exact ZIP code.
Get reminders for these exact dates
Dibble turns where your garden is into a full planting calendar and reminds you on the right day. Free to start, no account needed.
Leek in a Zone 9 season
Zone 9 gives about 275 frost-free days. Leek needs roughly 120 days from transplant. That leaves about 155 days of slack, so there is room for a late start or a second planting.
How to grow leeks
Start seeds indoors about 8 weeks before planting out. Transplant into a deep hole and hill soil up the stem as it grows, to blanch the white shank. Leeks grow slowly, so keep them weeded and watered.
Companion plants
Good neighbors for Leek:
Better kept apart:
Leek in other zones
Not in Zone 9? Pick your zone for the same dated windows.
Keep exploring
Leek: the full growing guide · The Zone 9 planting calendar · Every crop and zone
Plant at the right time this season
Dibble builds your calendar in under a minute. Free to start, no account needed.
Dates are estimates based on typical frost dates for the zone. Your yard has its own microclimate, so use them as a starting point and adjust as you learn your space.