Growing Cilantro in Denver
🇺🇸 Zone 3 Planting Guide · Cold semi-arid climate
Quick Answer: Growing Cilantro in Denver
Yes, you can grow Cilantro in Denver, US! Plant during Mar, Apr, May, Jul, Aug for best results. Denver is in USDA Zone 3 with a Cold semi-arid climate, offering 157 frost-free days per year. The difficulty level is medium, and Cilantro takes 45-70 days to harvest. Cilantro needs full sun to partial shade and regular watering.
Climate Match Analysis
Denver's climate requires careful timing. Winter lows (-8°C) drop below Cilantro's minimum (2°C), so avoid cold months. Summer highs (32°C) exceed Cilantro's maximum (24°C), so plant early or provide shade. Follow the recommended planting months for success.
Denver Climate Data
Cilantro Planting Calendar for Denver
Green months show the best time to plant Cilantro in Denver
Cilantro Growing Requirements
Sunlight
Full Sun to Partial Shade
2-4 hours direct sunlight
Water
Regular
Consistent moisture, 1-2 inches/week
Days to Harvest
45-70
From planting to first harvest
Difficulty
Some experience helpful
💡 Growing Tips for Cilantro
Sow every 3 weeks for continuous harvest. In hot climates, grow in fall/winter only. 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: Cilantro is frost tolerant — you can plant earlier in spring.
Companion Plants for Cilantro
Find out which plants grow best alongside Cilantro — and which to keep apart
Grow Cilantro Indoors
No garden? Learn how to grow Cilantro indoors with our complete guide
How to Grow Cilantro in Denver
Denver, US is in USDA Hardiness Zone 3 with a Cold semi-arid climate (Köppen BSk). With winter lows of -8°C and summer highs of 32°C, the growing season spans approximately 157 frost-free days. Cilantro grows well with some gardening knowledge in this climate.
Cilantro thrives in temperatures between 10°C and 20°C, requiring full sun to partial shade and regular watering. In Denver, the best months to plant Cilantro are March, April, May, July, August. Since Cilantro can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 45-70 days after planting.
Denver receives only 401mm of annual rainfall, so consistent irrigation will be essential for growing Cilantro successfully.
Other Plants That Grow in Denver
More plants you can grow alongside Cilantro in Denver
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Frequently Asked Questions
Can I grow cilantro in Denver?
Yes! Cilantro can be successfully grown in Denver, US. Denver is in USDA Hardiness Zone 3 with a Cold semi-arid climate. The difficulty level for growing Cilantro here is rated "medium". The best months to plant are March, April, May, July, August.
When should I plant cilantro in Denver?
In Denver, the recommended planting months for Cilantro are March, April, May, July, August. Denver has 157 frost-free days per year, with winter lows of -8°C and summer highs of 32°C. Cilantro is frost tolerant, giving you more flexibility with planting dates.
How long does cilantro take to grow in Denver?
Cilantro typically takes 45-70 days from planting to harvest. In Denver's Cold semi-arid climate with 157 frost-free days, you have enough time with good planning to grow Cilantro to maturity. Sow every 3 weeks for continuous harvest. In hot climates, grow in fall/winter only. 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 cilantro indoors in Denver?
Cilantro can potentially be grown indoors in Denver with proper conditions. It requires full sun to partial shade (2-4 hours of indirect light). Indoor growing extends your season beyond the Mar, Apr, May, Jul, Aug outdoor planting window. Use containers with good drainage and regular watering.
What month do I plant cilantro in Denver?
Plant Cilantro in Denver during March, April, May, July, August. These are the optimal months based on Denver's USDA Zone 3 climate, 157 frost-free days, and temperature range of -8°C to 32°C.
Is cilantro hard to grow in Denver?
Cilantro is rated "medium" to grow in Denver. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Cilantro in Denver is Moderate.
What grows well with cilantro in Denver?
In Denver, you can grow many companion plants alongside Cilantro. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Denver's Zone 3 climate.
Does cilantro need full sun in Denver?
Cilantro requires full sun to partial shade. Cilantro tolerates lower light. In Denver, a spot with filtered or indirect light for 2-4 hours works well.