Can You Grow Leek in Idaho?
US · USDA Zone 6b · zones 3b, 4a, 4b, 5a, 5b, 6a, 6b
Leeks grow well here — cold-hardy and can be harvested into late autumn.
Plant zones
Idaho last frost
Idaho first frost
Days to harvest
When to plant Leeks in Idaho
Start indoors
Transplant
Harvest
Dates are approximate, based on Idaho's average frost dates. Your exact yard may vary by microclimate.
About Leek
Leeks are cold-hardy slow-growing vegetables that can be harvested well into autumn and even winter.
Start indoors in late winter — leeks need a very long season. Transplant deeply to blanch stems. Harvest after first frosts — cold improves flavour. Very cold-hardy surviving to -10°C.
Gardening in Idaho
Idaho has a semi-arid continental climate. Southern valleys are Zone 6-7 with hot dry summers; northern regions and mountains are colder. Excellent for root vegetables and cool crops.
Frequently asked questions
Can you grow Leek in Idaho?
Leeks grow well here — cold-hardy and can be harvested into late autumn.
What zone is Idaho?
Idaho spans USDA Zone 6b (3b, 4a, 4b, 5a, 5b, 6a, 6b).
When do you plant Leeks in Idaho?
Plant Leeks around mid-March (start indoors Jan 1), harvest Jun 23 – Aug 12.