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Growing Pennyroyal in Des Moines

🇺🇸 Zone 2 Planting Guide · Hot-summer humid continental climate

USDA Zone 2 170 frost-free days 60-90 days to harvest

Quick Answer: Growing Pennyroyal in Des Moines

Yes, you can grow Pennyroyal in Des Moines, US! Plant during Mar, Apr, May, Aug, Sep for best results. Des Moines is in USDA Zone 2 with a Hot-summer humid continental climate, offering 170 frost-free days per year. The difficulty level is medium, and Pennyroyal takes 60-90 days to harvest. Pennyroyal needs full sun to partial shade and regular watering.

Climate Match Analysis

Moderate Match Des Moines + Pennyroyal

Des Moines's climate requires careful timing. Winter lows (-12°C) drop below Pennyroyal's minimum (-10°C), so avoid cold months. Summer highs (30°C) exceed Pennyroyal's maximum (28°C), so plant early or provide shade. Follow the recommended planting months for success.

Pennyroyal tolerates -10°C to 28°C
Optimal: 12°C - 22°C
Des Moines range -12°C to 30°C

Des Moines Climate Data

USDA Zone
2
Frost-Free
170days
Winter Low
-12°C
Summer High
30°C
Rainfall
889mm/yr
Climate
Dfa
Hot-summer humid continental

Pennyroyal Planting Calendar for Des Moines

Green months show the best time to plant Pennyroyal in Des Moines

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

Pennyroyal Growing Requirements

☀️

Sunlight

Full Sun to Partial Shade

2-4 hours direct sunlight

💧

Water

Regular

Consistent moisture, 1-2 inches/week

📅

Days to Harvest

60-90

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Pennyroyal

Repels fleas and mosquitoes. Ground cover between pavers. 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: Pennyroyal is frost tolerant — you can plant earlier in spring.

How to Grow Pennyroyal in Des Moines

Des Moines, US is in USDA Hardiness Zone 2 with a Hot-summer humid continental climate (Köppen Dfa). With winter lows of -12°C and summer highs of 30°C, the growing season spans approximately 170 frost-free days. Pennyroyal grows well with some gardening knowledge in this climate.

Pennyroyal thrives in temperatures between 12°C and 22°C, requiring full sun to partial shade and regular watering. In Des Moines, the best months to plant Pennyroyal are March, April, May, August, September. Since Pennyroyal 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.

With 889mm of annual rainfall, Des Moines provides moderate natural moisture. You'll likely need to supplement with regular watering, especially during the growing season.

Other Plants That Grow in Des Moines

More plants you can grow alongside Pennyroyal in Des Moines

Keep Exploring

Frequently Asked Questions

Can I grow pennyroyal in Des Moines?

Yes! Pennyroyal can be successfully grown in Des Moines, US. Des Moines is in USDA Hardiness Zone 2 with a Hot-summer humid continental climate. The difficulty level for growing Pennyroyal here is rated "medium". The best months to plant are March, April, May, August, September.

When should I plant pennyroyal in Des Moines?

In Des Moines, the recommended planting months for Pennyroyal are March, April, May, August, September. Des Moines has 170 frost-free days per year, with winter lows of -12°C and summer highs of 30°C. Pennyroyal is frost tolerant, giving you more flexibility with planting dates.

How long does pennyroyal take to grow in Des Moines?

Pennyroyal typically takes 60-90 days from planting to harvest. In Des Moines's Hot-summer humid continental climate with 170 frost-free days, you have enough time with good planning to grow Pennyroyal to maturity. Repels fleas and mosquitoes. Ground cover between pavers. 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 pennyroyal indoors in Des Moines?

Pennyroyal can potentially be grown indoors in Des Moines 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, Aug, Sep outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant pennyroyal in Des Moines?

Plant Pennyroyal in Des Moines during March, April, May, August, September. These are the optimal months based on Des Moines's USDA Zone 2 climate, 170 frost-free days, and temperature range of -12°C to 30°C.

Is pennyroyal hard to grow in Des Moines?

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

What grows well with pennyroyal in Des Moines?

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

Does pennyroyal need full sun in Des Moines?

Pennyroyal requires full sun to partial shade. Pennyroyal tolerates lower light. In Des Moines, a spot with filtered or indirect light for 2-4 hours works well.

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

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