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Growing Cayenne Pepper in Siem Reap

🇰🇭 Zone 13 Planting Guide · Tropical savanna climate

USDA Zone 13 365 frost-free days 70-100 days to harvest

Quick Answer: Growing Cayenne Pepper in Siem Reap

Yes, you can grow Cayenne Pepper in Siem Reap, KH! Plant during Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec for best results. Siem Reap is in USDA Zone 13 with a Tropical savanna climate, offering 365 frost-free days per year. The difficulty level is medium, and Cayenne Pepper takes 70-100 days to harvest. Cayenne Pepper needs full sun and moderate watering.

Climate Match Analysis

Good Match Siem Reap + Cayenne Pepper

Siem Reap's temperatures (20°C to 36°C) are within the tolerable range for Cayenne Pepper (15°C to 38°C), though not always in the optimal zone (22°C to 32°C). Plant during recommended months for best results.

Cayenne Pepper tolerates 15°C to 38°C
Optimal: 22°C - 32°C
Siem Reap range 20°C to 36°C

Siem Reap Climate Data

USDA Zone
13
Frost-Free
365days
Winter Low
20°C
Summer High
36°C
Rainfall
1380mm/yr
Climate
Aw
Tropical savanna

Cayenne Pepper Planting Calendar for Siem Reap

Green months show the best time to plant Cayenne Pepper in Siem Reap

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

Cayenne Pepper Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Moderate

Keep soil consistently moist

📅

Days to Harvest

70-100

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Cayenne Pepper

Start indoors 10 weeks early. Let peppers turn full red before picking. Wait until soil warms to at least 22°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

Frost tolerance: Cayenne Pepper is NOT frost tolerant — wait until after the last frost in Siem Reap.

How to Grow Cayenne Pepper in Siem Reap

Siem Reap, KH is in USDA Hardiness Zone 13 with a Tropical savanna climate (Köppen Aw). With winter lows of 20°C and summer highs of 36°C, the growing season spans approximately 365 frost-free days. Cayenne Pepper grows well with some gardening knowledge in this climate.

Cayenne Pepper thrives in temperatures between 22°C and 32°C, requiring full sun and moderate watering. In Siem Reap, the best months to plant Cayenne Pepper are January, February, March, April, May, June, July, August, September, October, November, December. Cayenne Pepper is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 70-100 days after planting.

Siem Reap receives 1380mm of annual rainfall, which provides good natural moisture for Cayenne Pepper. Monitor soil moisture and water as needed.

Other Plants That Grow in Siem Reap

More plants you can grow alongside Cayenne Pepper in Siem Reap

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Frequently Asked Questions

Can I grow cayenne pepper in Siem Reap?

Yes! Cayenne Pepper can be successfully grown in Siem Reap, KH. Siem Reap is in USDA Hardiness Zone 13 with a Tropical savanna climate. The difficulty level for growing Cayenne Pepper here is rated "medium". The best months to plant are January, February, March, April, May, June, July, August, September, October, November, December.

When should I plant cayenne pepper in Siem Reap?

In Siem Reap, the recommended planting months for Cayenne Pepper are January, February, March, April, May, June, July, August, September, October, November, December. Siem Reap has 365 frost-free days per year, with winter lows of 20°C and summer highs of 36°C. Since Cayenne Pepper is not frost tolerant, make sure to plant after the last frost date.

How long does cayenne pepper take to grow in Siem Reap?

Cayenne Pepper typically takes 70-100 days from planting to harvest. In Siem Reap's Tropical savanna climate with 365 frost-free days, you have plenty of time to grow Cayenne Pepper to maturity. Start indoors 10 weeks early. Let peppers turn full red before picking. Wait until soil warms to at least 22°C before transplanting outdoors — cold soil stunts growth and can invite root rot. Water steadily but avoid soggy soil. A 5-cm layer of organic mulch helps balance moisture and suppress weeds.

Can I grow cayenne pepper indoors in Siem Reap?

Cayenne Pepper can potentially be grown indoors in Siem Reap 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 Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec outdoor planting window. Use containers with good drainage and moderate watering.

What month do I plant cayenne pepper in Siem Reap?

Plant Cayenne Pepper in Siem Reap during January, February, March, April, May, June, July, August, September, October, November, December. These are the optimal months based on Siem Reap's USDA Zone 13 climate, 365 frost-free days, and temperature range of 20°C to 36°C.

Is cayenne pepper hard to grow in Siem Reap?

Cayenne Pepper is rated "medium" to grow in Siem Reap. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Cayenne Pepper in Siem Reap is Good.

What grows well with cayenne pepper in Siem Reap?

In Siem Reap, you can grow many companion plants alongside Cayenne Pepper. Good options from the same planting window include Tomato, Basil, Lettuce, Carrot and 2 more. These plants share similar planting months and thrive in Siem Reap's Zone 13 climate.

Does cayenne pepper need full sun in Siem Reap?

Cayenne Pepper requires full sun. In Siem Reap, provide at least 6 hours of direct sunlight daily. During peak summer heat, some afternoon shade can help prevent heat stress.

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

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