When to Plant Watercress in Hall County, TX
Your May game plan for Hall County, Texas
Here's what deserves your attention in Hall County, Texas this month. Everything below is tailored to Zone 7b and timed around your local frost dates.
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Get watercress seeds going inside
Your window is short. These crops want several weeks of indoor growth before they go outside.
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Bring in the watercress
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
June prep starts now
- First harvests: watercress
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.
Hall County, Texas is in USDA Zone 7b. The average last spring frost is March 31 and the first fall frost is November 6, giving you a growing season of approximately 220 days.
At an elevation of 1,213 feet, Hall County receives approximately 52.7 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 94°F, providing good warmth for Watercress during the growing season. Sandy soil warms quickly in spring — great for early planting — but Watercress will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Watercress root diseases.
Hall County Soil Profile
Soil Type
Sandy Loam
Soil pH
7.4-8.8
Drainage
Well Drained
Plant Planting Risk Windows
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 Hall County
How your county's soil matches Watercress's growing requirements.
Soil pH
Your soil pH (7.4–8.8) is more alkaline than Watercress prefers (6.5–7.5). Add sulfur or peat moss to lower pH.
Soil Texture
Sandy soil in Hall County warms quickly in spring but drains fast. Watercress 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 Watercress.
How to Plant Watercress
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Watercress
Sow every 4.6 weeks. Last sowing by Sep 07 to harvest before frost.
For a dedicated fall crop, sow by Aug 28.
Plant Water Budget
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 | — | 3.5" | 0" | ❄️ Dormant |
| Feb | — | 3.1" | 0" | ❄️ Dormant |
| Mar | 6.5" | 3.1" | 3.4" | 🚿 Regular watering |
| Apr | 6.5" | 1.8" | 4.7" | 🚿 Regular watering |
| May | 6.5" | 1.1" | 5.4" | 🚿 Regular watering |
| Jun | 6.5" | 2" | 4.5" | 🚿 Regular watering |
| Jul | 6.5" | 8.9" | 0" | ✅ Rainfall sufficient |
| Aug | 6.5" | 10" | 0" | ✅ Rainfall sufficient |
| Sep | 6.5" | 7.1" | 0" | ✅ Rainfall sufficient |
| Oct | 6.5" | 5.4" | 1.1" | 💧 Light watering |
| Nov | 6.5" | 2.7" | 3.8" | 🚿 Regular watering |
| Dec | — | 4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Hall 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 Planting Timeline — Hall County, TX
Watercress Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 24 | Feb 24 – Mar 10 |
| Transplant Outdoors | March 31 | Mar 31 – Apr 14 |
| Direct Sow | March 17 | Mar 17 – Apr 7 |
| Harvest | May 12 | May 12 – Jun 16 |
| Fall Sowing | August 28 | Aug 28 – Sep 11 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Harvest |
| June | Harvest |
| July | — |
| August | Fall Sowing |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
1.5"/week · 1-2 times/week
📅 Days to Maturity
40–60 days
🧪 Soil pH
Needs 6.5–7.5 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 7b
📆 Growing Season
220 days in Hall County
Growing Tips for Watercress in Hall County
Direct sow Watercress outdoors after March 31 in Hall County when soil has warmed and frost danger has passed.
Sandy soil in Hall County dries quickly — mulch Watercress with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
Your generous 220.0-day season in Hall 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 →
Watercress in Other Locations
Frequently Asked Questions
When should I plant Watercress in Hall County, TX?
Hall County is in Zone 7b with an average last frost of March 31. Plan your Watercress planting based on this frost date — see the calendar above for exact timing.
What planting zone is Hall County, TX?
Hall County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 31 and first fall frost is November 6.
Your Hall County Garden Planner — Free
A 24-page printable planner built for Hall County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.