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🥬 Vegetable medium

Growing Leek in Oklahoma City

🇺🇸 Zone 5 Planting Guide · Humid subtropical climate

USDA Zone 5 215 frost-free days 90-120 days to harvest

Quick Answer: Growing Leek in Oklahoma City

Yes, you can grow Leek in Oklahoma City, US! Plant during Feb, Mar, Apr, Aug, Sep for best results. Oklahoma City is in USDA Zone 5 with a Humid subtropical climate, offering 215 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 Oklahoma City + Leek

Oklahoma City's climate requires careful timing. Summer highs (34°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
Oklahoma City range -4°C to 34°C

Oklahoma City Climate Data

USDA Zone
5
Frost-Free
215days
Winter Low
-4°C
Summer High
34°C
Rainfall
930mm/yr
Climate
Cfa
Humid subtropical

Leek Planting Calendar for Oklahoma City

Green months show the best time to plant Leek in Oklahoma City

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 Oklahoma City

Oklahoma City, US is in USDA Hardiness Zone 5 with a Humid subtropical climate (Köppen Cfa). With winter lows of -4°C and summer highs of 34°C, the growing season spans approximately 215 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 Oklahoma City, the best months to plant Leek are February, March, April, 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.

With 930mm of annual rainfall, Oklahoma City provides moderate natural moisture. You'll likely need to supplement with regular watering, especially during the growing season.

Other Plants That Grow in Oklahoma City

More plants you can grow alongside Leek in Oklahoma City

Keep Exploring

Frequently Asked Questions

Can I grow leek in Oklahoma City?

Yes! Leek can be successfully grown in Oklahoma City, US. Oklahoma City is in USDA Hardiness Zone 5 with a Humid subtropical climate. The difficulty level for growing Leek here is rated "medium". The best months to plant are February, March, April, August, September.

When should I plant leek in Oklahoma City?

In Oklahoma City, the recommended planting months for Leek are February, March, April, August, September. Oklahoma City has 215 frost-free days per year, with winter lows of -4°C and summer highs of 34°C. Leek is frost tolerant, giving you more flexibility with planting dates.

How long does leek take to grow in Oklahoma City?

Leek typically takes 90-120 days from planting to harvest. In Oklahoma City's Humid subtropical climate with 215 frost-free days, you have plenty of time 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 Oklahoma City?

Leek can potentially be grown indoors in Oklahoma City 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 Feb, Mar, Apr, Aug, Sep outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant leek in Oklahoma City?

Plant Leek in Oklahoma City during February, March, April, August, September. These are the optimal months based on Oklahoma City's USDA Zone 5 climate, 215 frost-free days, and temperature range of -4°C to 34°C.

Is leek hard to grow in Oklahoma City?

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

What grows well with leek in Oklahoma City?

In Oklahoma City, 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 Oklahoma City's Zone 5 climate.

Does leek need full sun in Oklahoma City?

Leek requires full sun. In Oklahoma City, 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

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