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Growing Pennyroyal in Edmonton

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

USDA Zone 1 125 frost-free days 60-90 days to harvest

Quick Answer: Growing Pennyroyal in Edmonton

Yes, you can grow Pennyroyal in Edmonton, CA! Plant during Mar, Apr, May, Jul, Aug for best results. Edmonton is in USDA Zone 1 with a Warm-summer humid continental climate, offering 125 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 Edmonton + Pennyroyal

Edmonton's climate requires careful timing. Winter lows (-17°C) drop below Pennyroyal's minimum (-10°C), so avoid cold months. Follow the recommended planting months for success.

Pennyroyal tolerates -10°C to 28°C
Optimal: 12°C - 22°C
Edmonton range -17°C to 23°C

Edmonton Climate Data

USDA Zone
1
Frost-Free
125days
Winter Low
-17°C
Summer High
23°C
Rainfall
461mm/yr
Climate
Dfb
Warm-summer humid continental

Pennyroyal Planting Calendar for Edmonton

Green months show the best time to plant Pennyroyal in Edmonton

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 Edmonton

Edmonton, CA is in USDA Hardiness Zone 1 with a Warm-summer humid continental climate (Köppen Dfb). With winter lows of -17°C and summer highs of 23°C, the growing season spans approximately 125 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 Edmonton, the best months to plant Pennyroyal are March, April, May, July, August. 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.

Edmonton receives only 461mm of annual rainfall, so consistent irrigation will be essential for growing Pennyroyal successfully.

Other Plants That Grow in Edmonton

More plants you can grow alongside Pennyroyal in Edmonton

Keep Exploring

Frequently Asked Questions

Can I grow pennyroyal in Edmonton?

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

When should I plant pennyroyal in Edmonton?

In Edmonton, the recommended planting months for Pennyroyal are March, April, May, July, August. Edmonton has 125 frost-free days per year, with winter lows of -17°C and summer highs of 23°C. Pennyroyal is frost tolerant, giving you more flexibility with planting dates.

How long does pennyroyal take to grow in Edmonton?

Pennyroyal typically takes 60-90 days from planting to harvest. In Edmonton's Warm-summer humid continental climate with 125 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 Edmonton?

Pennyroyal can potentially be grown indoors in Edmonton 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 pennyroyal in Edmonton?

Plant Pennyroyal in Edmonton during March, April, May, July, August. These are the optimal months based on Edmonton's USDA Zone 1 climate, 125 frost-free days, and temperature range of -17°C to 23°C.

Is pennyroyal hard to grow in Edmonton?

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

What grows well with pennyroyal in Edmonton?

In Edmonton, 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 Edmonton's Zone 1 climate.

Does pennyroyal need full sun in Edmonton?

Pennyroyal requires full sun to partial shade. Pennyroyal tolerates lower light. In Edmonton, 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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