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🥬 Vegetable medium

Growing Sweet Potato in Phnom Penh

🇰🇭 Zone 13 Planting Guide · Tropical savanna climate

USDA Zone 13 365 frost-free days 90-170 days to harvest

Quick Answer: Growing Sweet Potato in Phnom Penh

Yes, you can grow Sweet Potato in Phnom Penh, KH! Plant during Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec for best results. Phnom Penh is in USDA Zone 13 with a Tropical savanna climate, offering 365 frost-free days per year. The difficulty level is medium, and Sweet Potato takes 90-170 days to harvest. Sweet Potato needs full sun and moderate watering.

Climate Match Analysis

Good Match Phnom Penh + Sweet Potato

Phnom Penh's temperatures (22°C to 35°C) are within the tolerable range for Sweet Potato (15°C to 35°C), though not always in the optimal zone (22°C to 30°C). Plant during recommended months for best results.

Sweet Potato tolerates 15°C to 35°C
Optimal: 22°C - 30°C
Phnom Penh range 22°C to 35°C

Phnom Penh Climate Data

USDA Zone
13
Frost-Free
365days
Winter Low
22°C
Summer High
35°C
Rainfall
1389mm/yr
Climate
Aw
Tropical savanna

Sweet Potato Planting Calendar for Phnom Penh

Green months show the best time to plant Sweet Potato in Phnom Penh

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

Sweet Potato Growing Requirements

☀️

Sunlight

Full Sun

6+ hours direct sunlight

💧

Water

Moderate

Keep soil consistently moist

📅

Days to Harvest

90-170

From planting to first harvest

📊

Difficulty

medium

Some experience helpful

💡 Growing Tips for Sweet Potato

Grow from slips (sprouts), not seeds. Needs warm soil to form tubers. 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: Sweet Potato is NOT frost tolerant — wait until after the last frost in Phnom Penh.

How to Grow Sweet Potato in Phnom Penh

Phnom Penh, KH is in USDA Hardiness Zone 13 with a Tropical savanna climate (Köppen Aw). With winter lows of 22°C and summer highs of 35°C, the growing season spans approximately 365 frost-free days. Sweet Potato grows well with some gardening knowledge in this climate.

Sweet Potato thrives in temperatures between 22°C and 30°C, requiring full sun and moderate watering. In Phnom Penh, the best months to plant Sweet Potato are January, February, March, April, May, June, July, August, September, October, November, December. Sweet Potato is not frost tolerant, so it's important to wait until after the last spring frost before transplanting outdoors. Expect to harvest in approximately 90-170 days after planting.

Phnom Penh receives 1389mm of annual rainfall, which provides good natural moisture for Sweet Potato. Monitor soil moisture and water as needed.

Other Plants That Grow in Phnom Penh

More plants you can grow alongside Sweet Potato in Phnom Penh

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Frequently Asked Questions

Can I grow sweet potato in Phnom Penh?

Yes! Sweet Potato can be successfully grown in Phnom Penh, KH. Phnom Penh is in USDA Hardiness Zone 13 with a Tropical savanna climate. The difficulty level for growing Sweet Potato 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 sweet potato in Phnom Penh?

In Phnom Penh, the recommended planting months for Sweet Potato are January, February, March, April, May, June, July, August, September, October, November, December. Phnom Penh has 365 frost-free days per year, with winter lows of 22°C and summer highs of 35°C. Since Sweet Potato is not frost tolerant, make sure to plant after the last frost date.

How long does sweet potato take to grow in Phnom Penh?

Sweet Potato typically takes 90-170 days from planting to harvest. In Phnom Penh's Tropical savanna climate with 365 frost-free days, you have plenty of time to grow Sweet Potato to maturity. Grow from slips (sprouts), not seeds. Needs warm soil to form tubers. 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 sweet potato indoors in Phnom Penh?

Sweet Potato can potentially be grown indoors in Phnom Penh 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 sweet potato in Phnom Penh?

Plant Sweet Potato in Phnom Penh during January, February, March, April, May, June, July, August, September, October, November, December. These are the optimal months based on Phnom Penh's USDA Zone 13 climate, 365 frost-free days, and temperature range of 22°C to 35°C.

Is sweet potato hard to grow in Phnom Penh?

Sweet Potato is rated "medium" to grow in Phnom Penh. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Sweet Potato in Phnom Penh is Good.

What grows well with sweet potato in Phnom Penh?

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

Does sweet potato need full sun in Phnom Penh?

Sweet Potato requires full sun. In Phnom Penh, 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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