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Growing Borage in Hong Kong

🇭🇰 Zone 11 Planting Guide · Humid subtropical (dry winter) climate

USDA Zone 11 365 frost-free days 50-60 days to harvest

Quick Answer: Growing Borage in Hong Kong

Yes, you can grow Borage in Hong Kong, HK! Plant during Nov, Dec, Jan, Feb for best results. Hong Kong is in USDA Zone 11 with a Humid subtropical (dry winter) climate, offering 365 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 Hong Kong + Borage

Hong Kong's climate requires careful timing. Summer highs (31°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
Hong Kong range 14°C to 31°C

Hong Kong Climate Data

USDA Zone
11
Frost-Free
365days
Winter Low
14°C
Summer High
31°C
Rainfall
2399mm/yr
Climate
Cwa
Humid subtropical (dry winter)

Borage Planting Calendar for Hong Kong

Green months show the best time to plant Borage in Hong Kong

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

Borage Growing Requirements

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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 Hong Kong

Hong Kong, HK is in USDA Hardiness Zone 11 with a Humid subtropical (dry winter) climate (Köppen Cwa). With winter lows of 14°C and summer highs of 31°C, the growing season spans approximately 365 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 Hong Kong, the best months to plant Borage are November, December, January, February. 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.

Hong Kong receives 2399mm of annual rainfall, which provides good natural moisture for Borage. Monitor soil moisture and water as needed.

Other Plants That Grow in Hong Kong

More plants you can grow alongside Borage in Hong Kong

Keep Exploring

Frequently Asked Questions

Can I grow borage in Hong Kong?

Yes! Borage can be successfully grown in Hong Kong, HK. Hong Kong is in USDA Hardiness Zone 11 with a Humid subtropical (dry winter) climate. The difficulty level for growing Borage here is rated "easy". The best months to plant are November, December, January, February.

When should I plant borage in Hong Kong?

In Hong Kong, the recommended planting months for Borage are November, December, January, February. Hong Kong has 365 frost-free days per year, with winter lows of 14°C and summer highs of 31°C. Borage is frost tolerant, giving you more flexibility with planting dates.

How long does borage take to grow in Hong Kong?

Borage typically takes 50-60 days from planting to harvest. In Hong Kong's Humid subtropical (dry winter) climate with 365 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 Hong Kong?

Borage can potentially be grown indoors in Hong Kong 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 Nov, Dec, Jan, Feb outdoor planting window. Use containers with good drainage and moderate watering.

What month do I plant borage in Hong Kong?

Plant Borage in Hong Kong during November, December, January, February. These are the optimal months based on Hong Kong's USDA Zone 11 climate, 365 frost-free days, and temperature range of 14°C to 31°C.

Is borage hard to grow in Hong Kong?

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

What grows well with borage in Hong Kong?

In Hong Kong, 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 Hong Kong's Zone 11 climate.

Does borage need full sun in Hong Kong?

Borage requires full sun. In Hong Kong, 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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