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Growing Pennyroyal in Los Angeles

🇺🇸 Zone 9 Planting Guide · Warm-summer Mediterranean climate

USDA Zone 9 355 frost-free days 60-90 days to harvest

Quick Answer: Growing Pennyroyal in Los Angeles

Yes, you can grow Pennyroyal in Los Angeles, US! Plant during Oct, Nov for best results. Los Angeles is in USDA Zone 9 with a Warm-summer Mediterranean climate, offering 355 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 Los Angeles + Pennyroyal

Los Angeles's climate requires careful timing. Summer highs (29°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
Los Angeles range 9°C to 29°C

Los Angeles Climate Data

USDA Zone
9
Frost-Free
355days
Winter Low
9°C
Summer High
29°C
Rainfall
380mm/yr
Climate
Csb
Warm-summer Mediterranean

Pennyroyal Planting Calendar for Los Angeles

Green months show the best time to plant Pennyroyal in Los Angeles

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 Los Angeles

Los Angeles, US is in USDA Hardiness Zone 9 with a Warm-summer Mediterranean climate (Köppen Csb). With winter lows of 9°C and summer highs of 29°C, the growing season spans approximately 355 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 Los Angeles, the best months to plant Pennyroyal are October, November. 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.

Los Angeles receives only 380mm of annual rainfall, so consistent irrigation will be essential for growing Pennyroyal successfully.

Other Plants That Grow in Los Angeles

More plants you can grow alongside Pennyroyal in Los Angeles

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Frequently Asked Questions

Can I grow pennyroyal in Los Angeles?

Yes! Pennyroyal can be successfully grown in Los Angeles, US. Los Angeles is in USDA Hardiness Zone 9 with a Warm-summer Mediterranean climate. The difficulty level for growing Pennyroyal here is rated "medium". The best months to plant are October, November.

When should I plant pennyroyal in Los Angeles?

In Los Angeles, the recommended planting months for Pennyroyal are October, November. Los Angeles has 355 frost-free days per year, with winter lows of 9°C and summer highs of 29°C. Pennyroyal is frost tolerant, giving you more flexibility with planting dates.

How long does pennyroyal take to grow in Los Angeles?

Pennyroyal typically takes 60-90 days from planting to harvest. In Los Angeles's Warm-summer Mediterranean climate with 355 frost-free days, you have plenty of time 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 Los Angeles?

Pennyroyal can potentially be grown indoors in Los Angeles with proper conditions. It requires full sun to partial shade (2-4 hours of indirect light). Indoor growing extends your season beyond the Oct, Nov outdoor planting window. Use containers with good drainage and regular watering.

What month do I plant pennyroyal in Los Angeles?

Plant Pennyroyal in Los Angeles during October, November. These are the optimal months based on Los Angeles's USDA Zone 9 climate, 355 frost-free days, and temperature range of 9°C to 29°C.

Is pennyroyal hard to grow in Los Angeles?

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

What grows well with pennyroyal in Los Angeles?

In Los Angeles, 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 Los Angeles's Zone 9 climate.

Does pennyroyal need full sun in Los Angeles?

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