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When to Plant Cress in Brewster County, TX

Brewster County, Texas Zone 8b May

Top priorities for Brewster County, Texas gardeners in May

Each item below is timed to Brewster County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 27
Avg. first frost November 11
Soil temp (4") 61°F
Watering Critical
Pest pressure Moderate
Daylight 13.5 hrs
  1. Sow cress in trays indoors

    You're about 26 weeks out from your last frost — the perfect window to get these germinating indoors.

  2. Collect cress at their peak

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

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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.

Brewster County, Texas is in USDA Zone 8b. The average last spring frost is March 27 and the first fall frost is November 11, giving you a growing season of approximately 229 days.

At an elevation of 2,724 feet, Brewster County receives approximately 43.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98°F, so Cress may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Cress will need more frequent watering and organic matter to retain nutrients.

Brewster County, TX (Zone 8b) Long season
229 days
Last Spring Frost March 27
229 growing days
First Fall Frost November 11

Brewster County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.9-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (194 days to spare)
Start indoors: Feb 6 Transplant: Mar 13 🍅 Harvest: Mar 27 – Apr 17
Recommended (50%) ✓ Fits season (194 days to spare)
Start indoors: Feb 20 Transplant: Mar 27 🍅 Harvest: Apr 10 – May 1
Safe Start (90%) ✓ Fits season (200 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Apr 29 – May 20

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.

Soil Compatibility in Brewster County

How your county's soil matches Cress's growing requirements.

Soil pH

Your soil pH (7.9–8.4) is more alkaline than Cress prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Brewster County warms quickly in spring but drains fast. Cress will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (0.9%). Add 2-3 inches of compost before planting Cress.

How to Plant Cress

0.5"
Planting Depth
2"
Between Plants
6"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Cress

20
successive plantings in your 229-day season

Sow every 1.6 weeks. Last sowing by Oct 21 to harvest before frost.

For a dedicated fall crop, sow by Sep 02.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 499 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Cress

Cress needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Cress Needs Rainfall You Supplement Action
Jan 3.2" 0" ❄️ Dormant
Feb 2.1" 0" ❄️ Dormant
Mar 4.3" 2.5" 1.8" 💧 Light watering
Apr 4.3" 1.5" 2.8" 🚿 Regular watering
May 4.3" 0.8" 3.5" 🚿 Regular watering
Jun 4.3" 1.2" 3.1" 🚿 Regular watering
Jul 4.3" 7.1" 0" ✅ Rainfall sufficient
Aug 4.3" 9.4" 0" ✅ Rainfall sufficient
Sep 4.3" 6.1" 0" ✅ Rainfall sufficient
Oct 4.3" 4" 0.3" 💧 Light watering
Nov 4.3" 2.6" 1.7" 💧 Light watering
Dec 2.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Brewster County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Cress Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Cress needs ~411 GDD — county provides 5,381 GDD Excellent fit

Cress Planting Timeline — Brewster County, TX

Cress Planting Calendar

Activity When Date Range
Start Indoors February 20 Feb 20 – Mar 6
Transplant Outdoors March 27 Mar 27 – Apr 10
Direct Sow March 13 Mar 13 – Apr 3
Harvest April 10 Apr 10 – May 1
Fall Sowing September 2 Sep 2 – Sep 16

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

14–21 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8b

📆 Growing Season

229 days in Brewster County

Growing Tips for Cress in Brewster County

Direct sow Cress outdoors after March 27 in Brewster County when soil has warmed and frost danger has passed.

Sandy soil in Brewster County dries quickly — mulch Cress with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 98°F in Brewster County, provide afternoon shade for Cress and water deeply in the morning.

Your generous 229.0-day season in Brewster County allows multiple plantings of Cress. Sow every 7.0 days for continuous harvest.

Common pests for Cress in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cress in Brewster County, TX?

Brewster County is in Zone 8b with an average last frost of March 27. Plan your Cress planting based on this frost date — see the calendar above for exact timing.

What planting zone is Brewster County, TX?

Brewster County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 27 and first fall frost is November 11.

🌱

Your Brewster County Garden Planner — Free

A 24-page printable planner built for Brewster County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.