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🥬 Vegetable medium

Growing Watercress in Baltimore

🇺🇸 Zone 5 Planting Guide · Humid subtropical climate

USDA Zone 5 210 frost-free days 30-50 days to harvest

Quick Answer: Growing Watercress in Baltimore

Yes, you can grow Watercress in Baltimore, US! Plant during Feb, Mar, Apr, Aug, Sep for best results. Baltimore is in USDA Zone 5 with a Humid subtropical climate, offering 210 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

Moderate Match Baltimore + Watercress

Baltimore's climate requires careful timing. Winter lows (-3°C) drop below Watercress's minimum (0°C), so avoid cold months. Summer highs (31°C) exceed Watercress's maximum (22°C), so plant early or provide shade. Follow the recommended planting months for success.

Watercress tolerates 0°C to 22°C
Optimal: 8°C - 16°C
Baltimore range -3°C to 31°C

Baltimore Climate Data

USDA Zone
5
Frost-Free
210days
Winter Low
-3°C
Summer High
31°C
Rainfall
1067mm/yr
Climate
Cfa
Humid subtropical

Watercress Planting Calendar for Baltimore

Green months show the best time to plant Watercress in Baltimore

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

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

medium

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 Baltimore

Baltimore, US is in USDA Hardiness Zone 5 with a Humid subtropical climate (Köppen Cfa). With winter lows of -3°C and summer highs of 31°C, the growing season spans approximately 210 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 Baltimore, the best months to plant Watercress are February, March, April, August, September. 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.

Baltimore receives 1067mm of annual rainfall, which provides good natural moisture for Watercress. Monitor soil moisture and water as needed.

Other Plants That Grow in Baltimore

More plants you can grow alongside Watercress in Baltimore

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Frequently Asked Questions

Can I grow watercress in Baltimore?

Yes! Watercress can be successfully grown in Baltimore, US. Baltimore is in USDA Hardiness Zone 5 with a Humid subtropical climate. The difficulty level for growing Watercress here is rated "medium". The best months to plant are February, March, April, August, September.

When should I plant watercress in Baltimore?

In Baltimore, the recommended planting months for Watercress are February, March, April, August, September. Baltimore has 210 frost-free days per year, with winter lows of -3°C and summer highs of 31°C. Watercress is frost tolerant, giving you more flexibility with planting dates.

How long does watercress take to grow in Baltimore?

Watercress typically takes 30-50 days from planting to harvest. In Baltimore's Humid subtropical climate with 210 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 Baltimore?

Watercress can potentially be grown indoors in Baltimore with proper conditions. It requires partial shade ok (2-4 hours of indirect light). Indoor growing extends your season beyond the Feb, Mar, Apr, Aug, Sep outdoor planting window. Use containers with good drainage and frequent watering.

What month do I plant watercress in Baltimore?

Plant Watercress in Baltimore during February, March, April, August, September. These are the optimal months based on Baltimore's USDA Zone 5 climate, 210 frost-free days, and temperature range of -3°C to 31°C.

Is watercress hard to grow in Baltimore?

Watercress is rated "medium" to grow in Baltimore. Some gardening experience is helpful. Pay attention to watering schedules and planting timing. The climate match for Watercress in Baltimore is Moderate.

What grows well with watercress in Baltimore?

In Baltimore, 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 Baltimore's Zone 5 climate.

Does watercress need full sun in Baltimore?

Watercress requires partial shade ok. Watercress tolerates lower light. In Baltimore, a spot with filtered or indirect light for 2-4 hours works well.

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

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