Growing leeks in zone 5
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 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 leeks in zone 5?
Transplant Mar 25 – Apr 8, 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.
When should I start seeds indoors for leeks in zone 5?
Sow indoors Feb 11 – Feb 25 — that's 10 to 8 weeks before the typical Apr 22 last frost, giving sturdy transplants exactly when the garden is ready for them.
Can I direct sow leeks in zone 5?
Not usefully in zone 5 — leeks needs more growing time than direct sowing allows, which is why it's raised from transplants started indoors Feb 11 – Feb 25.