Skip to content
🥬 Vegetable medium

Growing Leek in Montreal

🇨🇦 Zone 1 Planting Guide · Warm-summer humid continental climate

USDA Zone 1 175 frost-free days 90-120 days to harvest

Quick Answer: Growing Leek in Montreal

Yes, you can grow Leek in Montreal, CA! Plant during Mar, Apr, May, Aug, Sep for best results. Montreal is in USDA Zone 1 with a Warm-summer humid continental climate, offering 175 frost-free days per year. The difficulty level is medium, and Leek takes 90-120 days to harvest. Leek needs full sun and regular watering.

Climate Match Analysis

Moderate Match Montreal + Leek

Montreal's climate requires careful timing. Winter lows (-14°C) drop below Leek's minimum (-5°C), so avoid cold months. Summer highs (26°C) exceed Leek's maximum (25°C), so plant early or provide shade. Follow the recommended planting months for success.

Leek tolerates -5°C to 25°C
Optimal: 10°C - 20°C
Montreal range -14°C to 26°C

Montreal Climate Data

USDA Zone
1
Frost-Free
175days
Winter Low
-14°C
Summer High
26°C
Rainfall
1000mm/yr
Climate
Dfb
Warm-summer humid continental

Leek Planting Calendar for Montreal

Green months show the best time to plant Leek in Montreal

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Plant Leek Not recommended

Leek Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

90-120

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Leek

Plant in trenches and hill soil as they grow to blanch stems. Very cold hardy. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Frost tolerance: Leek is frost tolerant — you can plant earlier in spring.

How to Grow Leek in Montreal

Montreal, CA is in USDA Hardiness Zone 1 with a Warm-summer humid continental climate (Köppen Dfb). With winter lows of -14°C and summer highs of 26°C, the growing season spans approximately 175 frost-free days. Leek grows well with some gardening knowledge in this climate.

Leek thrives in temperatures between 10°C and 20°C, requiring full sun and regular watering. In Montreal, the best months to plant Leek are March, April, May, August, September. Since Leek can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 90-120 days after planting.

Montreal receives 1000mm of annual rainfall, which provides good natural moisture for Leek. Supplement with additional watering during dry spells.

Other Plants That Grow in Montreal

More plants you can grow alongside Leek in Montreal

Keep Exploring

Frequently Asked Questions

Can I grow leek in Montreal?

Yes! Leek can be successfully grown in Montreal, CA. Montreal is in USDA Hardiness Zone 1 with a Warm-summer humid continental climate. The difficulty level for growing Leek here is rated "medium". The best months to plant are March, April, May, August, September.

When should I plant leek in Montreal?

In Montreal, the recommended planting months for Leek are March, April, May, August, September. Montreal has 175 frost-free days per year, with winter lows of -14°C and summer highs of 26°C. Leek is frost tolerant, giving you more flexibility with planting dates.

How long does leek take to grow in Montreal?

Leek typically takes 90-120 days from planting to harvest. In Montreal's Warm-summer humid continental climate with 175 frost-free days, you have enough time with good planning to grow Leek to maturity. Plant in trenches and hill soil as they grow to blanch stems. Very cold hardy. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Aim for about 2.5 cm of water per week, adjusting for rainfall. Organic mulch around the base helps maintain even moisture.

Can I grow leek indoors in Montreal?

Leek can potentially be grown indoors in Montreal with proper conditions. It requires full sun (6+ hours of direct light — a south-facing window or grow lights recommended). Indoor growing extends your season beyond the Mar, Apr, May, Aug, Sep outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant leek in Montreal?

Plant Leek in Montreal during March, April, May, August, September. These are the optimal months based on Montreal's USDA Zone 1 climate, 175 frost-free days, and temperature range of -14°C to 26°C.

Is leek hard to grow in Montreal?

Leek is rated "medium" to grow in Montreal. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Leek in Montreal is Moderate.

What grows well with leek in Montreal?

In Montreal, you can grow many companion plants alongside Leek. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Montreal's Zone 1 climate.

Does leek need full sun in Montreal?

Leek requires full sun. In Montreal, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.

Last updated: March 2026 · Climate data from NOAA, FAO, USDA

See an error? Report it