DibbleGrowing leeks: from seed to harvest
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.
Planting dates for leeks by zone
| Zone | Start seeds indoors | Sow or transplant | Harvest |
|---|---|---|---|
| Zone 3 | February 28 | April 25 | August 22 |
| Zone 4 | February 21 | April 18 | August 18 |
| Zone 5 | February 13 | April 10 | August 8 |
| Zone 6 | February 1 | March 29 | July 27 |
| Zone 7 | January 18 | March 15 | July 10 |
| Zone 8 | May 9 | July 4 | June 4 |
| Zone 9 | May 28 | July 23 | May 1 |
| Zone 10 | February 22 | April 19 | May 1 |
| Zone 11 | July 19 | September 13 | May 1 |
Each date is the start of the best window from the same climate engine the Dibble app uses, run at typical places in each zone. Dibble tunes them to your garden's own location and lets you adjust frost dates for your own yard.
Companion plants
Good neighbors for Leek:
Better kept apart:
Family and rotation
Leek is in the alliums family. Light feeders that deter pests. Good rotation partners; keep away from beans and peas. Learn about crop rotation.
Related crops
Onion
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When to plant
Questions
When should I plant leeks?
It depends on your zone. Leek is a hardy crop, so the timing follows your last spring frost. Look up your zone in the table below for exact start, sow, and harvest dates, or open Dibble and set where your garden is to get your own calendar.
How long does it take to grow leeks?
About 120 days from transplant to the first harvest, with a picking window of roughly 45 days after that.
What grows well with leeks?
Good companions include Carrot, Celery, Onion. Keep it away from Bean (bush), Pea.
Plant at the right time this season
Dibble builds your calendar in under a minute. Free to start, no account needed.