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Growing Borage in Los Angeles

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

USDA Zone 9 355 frost-free days 50-60 days to harvest

Quick Answer: Growing Borage in Los Angeles

Yes, you can grow Borage 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 easy, and Borage takes 50-60 days to harvest. Borage needs full sun and moderate watering.

Climate Match Analysis

Moderate Match Los Angeles + Borage

Los Angeles's climate requires careful timing. Summer highs (29°C) exceed Borage's maximum (28°C), so plant early or provide shade. Follow the recommended planting months for success.

Borage tolerates -5°C to 28°C
Optimal: 10°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

Borage Planting Calendar for Los Angeles

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

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

Borage Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

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Water

Moderate

Keep soil consistently moist

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Days to Harvest

50-60

From planting to first harvest

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Difficulty

easy

Great for beginners

💡 Growing Tips for Borage

Self-seeds prolifically. Edible flowers for salads and drinks. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

Frost tolerance: Borage is frost tolerant — you can plant earlier in spring.

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Companion Plants for Borage

Find out which plants grow best alongside Borage — and which to keep apart

How to Grow Borage 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. Borage is one of the easiest plants to grow in this climate.

Borage thrives in temperatures between 10°C and 22°C, requiring full sun and moderate watering. In Los Angeles, the best months to plant Borage are October, November. Since Borage can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 50-60 days after planting.

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

Other Plants That Grow in Los Angeles

More plants you can grow alongside Borage in Los Angeles

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Frequently Asked Questions

Can I grow borage in Los Angeles?

Yes! Borage 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 Borage here is rated "easy". The best months to plant are October, November.

When should I plant borage in Los Angeles?

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

How long does borage take to grow in Los Angeles?

Borage typically takes 50-60 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 Borage to maturity. Self-seeds prolifically. Edible flowers for salads and drinks. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

Can I grow borage indoors in Los Angeles?

Borage can potentially be grown indoors in Los Angeles with proper conditions. It requires full sun (6+ hours of direct light — a south-facing window or grow lights recommended). Indoor growing extends your season beyond the Oct, Nov outdoor planting window. Use containers with good drainage and moderate watering.

What month do I plant borage in Los Angeles?

Plant Borage 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 borage hard to grow in Los Angeles?

Borage is rated "easy" to grow in Los Angeles. This is a great choice for beginners — it is forgiving and adapts well to this climate. The climate match for Borage in Los Angeles is Moderate.

What grows well with borage in Los Angeles?

In Los Angeles, you can grow many companion plants alongside Borage. 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 borage need full sun in Los Angeles?

Borage requires full sun. In Los Angeles, provide at least 6 hours of direct sunlight daily. Most garden locations with southern exposure will work well.

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

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