Blog

When to Plant Cress in Socorro County, NM

Garden cress is one of the fastest-growing edibles, producing peppery sprouts in as little as two weeks. It is excellent for microgreens and garnishes.

Socorro County, New Mexico is in USDA Zone 6b. The average last spring frost is May 1 and the first fall frost is October 11, giving you a growing season of approximately 163 days.

At an elevation of 5,542 feet, Socorro County receives approximately 14.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 86ยฐF, providing good warmth for Cress during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Cress will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Cress successfully. Mulch heavily to conserve soil moisture.

Socorro County, NM (Zone 6b) Moderate season
163 days
Last Spring Frost May 1
163 growing days
First Fall Frost October 11

Socorro County Soil Profile

Soil Type

Sandy Loam

Soil pH

6.7-8.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (130 days to spare)
Start indoors: Mar 19 Transplant: Apr 23 🍅 Harvest: May 7 – May 28
Recommended (50%) ✓ Fits season (128 days to spare)
Start indoors: Mar 27 Transplant: May 1 🍅 Harvest: May 15 – Jun 5
Safe Start (90%) ✓ Fits season (123 days to spare)
Start indoors: Apr 21 Transplant: May 26 🍅 Harvest: Jun 9 – Jun 30

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.4″/week
You supply
1.1″/week
Watering frequency 2-3 times/week
Season total 1,622 gal / 100 sq ft
Drought risk

Water stress score is 10/10 โ€” consider drought-tolerant varieties and mulching

Cress needs ~254 GDD — county provides 2,363 GDD Excellent fit

Cress Planting Timeline โ€” Socorro County, NM

Cress Planting Calendar

Activity When Date Range
Start Indoors March 27 Mar 27 โ€“ Apr 10
Transplant Outdoors May 1 May 1 โ€“ May 15
Direct Sow April 17 Apr 17 โ€“ May 8
Fall Sowing August 2 Aug 2 โ€“ Aug 16
Harvest May 15 May 15 โ€“ Jun 5

Plant 0.5" deep ยท 2" apart ยท Rows 6" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors
April Start Indoors Direct Sow
May Transplant Outdoors Direct Sow Harvest
June Harvest
July โ€”
August Fall Sowing
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

14โ€“21 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 6b

Growing Season

163 days

Growing Tips for Socorro County

Sow seeds thickly on moist soil or paper towels. Keep moist and harvest when 2-3 inches tall. Succession sow every few days for continuous supply. Grows well indoors year-round.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Cress in Socorro County, NM?

Socorro County is in Zone 6b with an average last frost of May 1. Plan your Cress planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Socorro County, NM?

Socorro County, New Mexico is in USDA Hardiness Zone 6b. The average last spring frost is May 1 and first fall frost is October 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Socorro County gardeners in Zone 6b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Socorro County, NM. Local conditions may vary. Last updated: April 2026.