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When to Plant Watercress in Crane County, TX

Crane County, Texas Zone 8a May

Crane County, Texas gardeners: here's your May plan

We've pulled the most time-sensitive tasks for Crane County, Texas this May and put them front and centre. Tackle them in order.

Avg. last frost March 20
Avg. first frost November 12
Soil temp (4") 57°F
Watering Critical
Pest pressure Moderate
Daylight 13.6 hrs
  1. It's harvest week for watercress

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Before June arrives, get these ready
  • First harvests: watercress

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Watercress is a semi-aquatic plant with a peppery, tangy flavor rich in vitamins and minerals. It grows naturally along streams and can be cultivated in containers with standing water.

Crane County, Texas is in USDA Zone 8a. The average last spring frost is March 20 and the first fall frost is November 12, giving you a growing season of approximately 237 days.

At an elevation of 4,486 feet, Crane County receives approximately 46.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98°F, so Watercress may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Watercress will need more frequent watering and organic matter to retain nutrients.

Crane County, TX (Zone 8a) Long season
237 days
Last Spring Frost March 20
237 growing days
First Fall Frost November 12

Crane County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.1-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (161 days to spare)
Start indoors: Feb 3 Transplant: Mar 10 🍅 Harvest: Apr 21 – May 26
Recommended (50%) ✓ Fits season (160 days to spare)
Start indoors: Feb 13 Transplant: Mar 20 🍅 Harvest: May 1 – Jun 5
Safe Start (90%) ✓ Fits season (153 days to spare)
Start indoors: Mar 9 Transplant: Apr 13 🍅 Harvest: May 25 – Jun 29

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 Crane County

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

Soil pH

Your soil pH (7.1–8.4) is more alkaline than Watercress prefers (6.5–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Watercress is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is low (1.1%). Add 2-3 inches of compost before planting Watercress.

How to Plant Watercress

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

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

Succession Planting Watercress

7
successive plantings in your 237-day season

Sow every 4.6 weeks. Last sowing by Sep 13 to harvest before frost.

For a dedicated fall crop, sow by Sep 03.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.8″/week
You supply
1.3″/week
Watering frequency 2-3 times/week
Season total 2,837 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Watercress

Watercress needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Watercress Needs Rainfall You Supplement Action
Jan 2.9" 0" ❄️ Dormant
Feb 2.4" 0" ❄️ Dormant
Mar 6.5" 2.5" 4" 🚿 Regular watering
Apr 6.5" 1.4" 5.1" 🚿 Regular watering
May 6.5" 1.2" 5.3" 🚿 Regular watering
Jun 6.5" 1.7" 4.8" 🚿 Regular watering
Jul 6.5" 7.4" 0" ✅ Rainfall sufficient
Aug 6.5" 9.5" 0" ✅ Rainfall sufficient
Sep 6.5" 7.6" 0" ✅ Rainfall sufficient
Oct 6.5" 4.9" 1.6" 💧 Light watering
Nov 6.5" 2.4" 4.1" 🚿 Regular watering
Dec 3.1" 0" ❄️ Dormant

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

Watercress 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.

Watercress needs ~1,175 GDD — county provides 5,569 GDD Excellent fit

Watercress Planting Timeline — Crane County, TX

Watercress Planting Calendar

Activity When Date Range
Start Indoors February 13 Feb 13 – Feb 27
Transplant Outdoors March 20 Mar 20 – Apr 3
Direct Sow March 6 Mar 6 – Mar 27
Harvest May 1 May 1 – Jun 5
Fall Sowing September 3 Sep 3 – Sep 17

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6.5–7.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8a

📆 Growing Season

237 days in Crane County

Growing Tips for Watercress in Crane County

Direct sow Watercress outdoors after March 20 in Crane County when soil has warmed and frost danger has passed.

Sandy soil in Crane County dries quickly — mulch Watercress 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 Crane County, provide afternoon shade for Watercress and water deeply in the morning.

Your generous 237.0-day season in Crane County allows multiple plantings of Watercress. Sow every 20.0 days for continuous harvest.

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

General growing tips

Grow in containers with trays of water kept fresh. Provide partial shade and cool conditions. Harvest stems by cutting above water level. Replace water frequently to prevent stagnation.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Watercress in Crane County, TX?

Crane County is in Zone 8a with an average last frost of March 20. Plan your Watercress planting based on this frost date — see the calendar above for exact timing.

What planting zone is Crane County, TX?

Crane County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 20 and first fall frost is November 12.

🌱

Your Crane County Garden Planner — Free

A 24-page printable planner built for Crane County (Zone 8a). 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 Crane 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.