Growing Mint in Denver
🇺🇸 Zone 3 Planting Guide · Cold semi-arid climate
Quick Answer: Growing Mint in Denver
Yes, you can grow Mint 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 easy, and Mint takes 60-90 days to harvest. Mint needs partial shade ok and regular watering.
Climate Match Analysis
Denver's climate requires careful timing. Winter lows (-8°C) drop below Mint's minimum (-5°C), so avoid cold months. Summer highs (32°C) exceed Mint's maximum (30°C), so plant early or provide shade. Follow the recommended planting months for success.
Denver Climate Data
Mint Planting Calendar for Denver
Green months show the best time to plant Mint in Denver
Mint Growing Requirements
Sunlight
Partial Shade OK
2-4 hours direct sunlight
Water
Regular
Consistent moisture, 1-2 inches/week
Days to Harvest
60-90
From planting to first harvest
Difficulty
Great for beginners
💡 Growing Tips for Mint
Always grow in a pot -- it will take over your garden. Harvest often to control growth. 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: Mint is frost tolerant — you can plant earlier in spring.
Companion Plants for Mint
Find out which plants grow best alongside Mint — and which to keep apart
Grow Mint Indoors
No garden? Learn how to grow Mint indoors with our complete guide
How to Grow Mint 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. Mint is one of the easiest plants to grow in this climate.
Mint thrives in temperatures between 12°C and 22°C, requiring partial shade ok and regular watering. In Denver, the best months to plant Mint are March, April, May, July, August. Since Mint can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 60-90 days after planting.
Denver receives only 401mm of annual rainfall, so consistent irrigation will be essential for growing Mint successfully.
Other Plants That Grow in Denver
More plants you can grow alongside Mint in Denver
Keep Exploring
Frequently Asked Questions
Can I grow mint in Denver?
Yes! Mint 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 Mint here is rated "easy". The best months to plant are March, April, May, July, August.
When should I plant mint in Denver?
In Denver, the recommended planting months for Mint 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. Mint is frost tolerant, giving you more flexibility with planting dates.
How long does mint take to grow in Denver?
Mint typically takes 60-90 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 Mint to maturity. Always grow in a pot -- it will take over your garden. Harvest often to control growth. 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 mint indoors in Denver?
Mint can potentially be grown indoors in Denver with proper conditions. It requires partial shade ok (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 mint in Denver?
Plant Mint 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 mint hard to grow in Denver?
Mint is rated "easy" to grow in Denver. This is a great choice for beginners — it is forgiving and adapts well to this climate. The climate match for Mint in Denver is Moderate.
What grows well with mint in Denver?
In Denver, you can grow many companion plants alongside Mint. 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 mint need full sun in Denver?
Mint requires partial shade ok. Mint tolerates lower light. In Denver, a spot with filtered or indirect light for 2-4 hours works well.