Growing Watercress in Phnom Penh
🇰🇭 Zone 13 Planting Guide · Tropical savanna climate
Quick Answer: Growing Watercress in Phnom Penh
Yes, you can grow Watercress in Phnom Penh, KH! Plant during Nov, Dec, Jan, Feb 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 Watercress takes 30-50 days to harvest. Watercress needs partial shade ok and frequent watering.
Climate Match Analysis
Phnom Penh's climate requires careful timing. Summer highs (35°C) exceed Watercress's maximum (22°C), so plant early or provide shade. Follow the recommended planting months for success.
Phnom Penh Climate Data
Watercress Planting Calendar for Phnom Penh
Green months show the best time to plant Watercress in Phnom Penh
Watercress Growing Requirements
Sunlight
Partial Shade OK
2-4 hours direct sunlight
Water
Frequent
Keep soil consistently moist
Days to Harvest
30-50
From planting to first harvest
Difficulty
Some experience helpful
💡 Growing Tips for Watercress
Keep soil constantly wet or grow in water. Excellent in containers with saucers of water. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Consistent moisture is critical. Mulch with straw or compost to retain soil moisture and keep roots cool during hot weather.
Frost tolerance: Watercress is frost tolerant — you can plant earlier in spring.
How to Grow Watercress 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. Watercress grows well with some gardening knowledge in this climate.
Watercress thrives in temperatures between 8°C and 16°C, requiring partial shade ok and frequent watering. In Phnom Penh, the best months to plant Watercress are November, December, January, February. Since Watercress can tolerate frost, you have flexibility to plant earlier in the season or extend into cooler months. Expect to harvest in approximately 30-50 days after planting.
Phnom Penh receives 1389mm of annual rainfall, which provides good natural moisture for Watercress. Monitor soil moisture and water as needed.
Other Plants That Grow in Phnom Penh
More plants you can grow alongside Watercress in Phnom Penh
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Frequently Asked Questions
Can I grow watercress in Phnom Penh?
Yes! Watercress 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 Watercress here is rated "medium". The best months to plant are November, December, January, February.
When should I plant watercress in Phnom Penh?
In Phnom Penh, the recommended planting months for Watercress are November, December, January, February. Phnom Penh has 365 frost-free days per year, with winter lows of 22°C and summer highs of 35°C. Watercress is frost tolerant, giving you more flexibility with planting dates.
How long does watercress take to grow in Phnom Penh?
Watercress typically takes 30-50 days from planting to harvest. In Phnom Penh's Tropical savanna climate with 365 frost-free days, you have plenty of time to grow Watercress to maturity. Keep soil constantly wet or grow in water. Excellent in containers with saucers of water. Can be planted 2-3 weeks before the last expected frost, giving it a head start on the growing season. Consistent moisture is critical. Mulch with straw or compost to retain soil moisture and keep roots cool during hot weather.
Can I grow watercress indoors in Phnom Penh?
Watercress can potentially be grown indoors in Phnom Penh with proper conditions. It requires partial shade ok (2-4 hours of indirect light). Indoor growing extends your season beyond the Nov, Dec, Jan, Feb outdoor planting window. Use containers with good drainage and frequent watering.
What month do I plant watercress in Phnom Penh?
Plant Watercress in Phnom Penh during November, December, January, February. 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 watercress hard to grow in Phnom Penh?
Watercress 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 Watercress in Phnom Penh is Moderate.
What grows well with watercress in Phnom Penh?
In Phnom Penh, you can grow many companion plants alongside Watercress. 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 watercress need full sun in Phnom Penh?
Watercress requires partial shade ok. Watercress tolerates lower light. In Phnom Penh, a spot with filtered or indirect light for 2-4 hours works well.