When to Plant Watercress in Nolan County, TX
Your May planting checklist for Nolan County, Texas
Here's what deserves your attention in Nolan County, Texas this month. Everything below is tailored to Zone 8a and timed around your local frost dates.
-
Collect watercress at their peak
Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.
Before June arrives, get these ready
- 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.
Nolan County, Texas is in USDA Zone 8a. The average last spring frost is March 24 and the first fall frost is November 15, giving you a growing season of approximately 236 days.
At an elevation of 3,997 feet, Nolan County receives approximately 49.6 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 101°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.
Nolan County Soil Profile
Soil Type
Sandy Loam
Soil pH
7.2-8.3
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 Nolan County
How your county's soil matches Watercress's growing requirements.
Soil pH
Your soil pH (7.2–8.3) is more alkaline than Watercress prefers (6.5–7.5). Add sulfur or peat moss to lower pH.
Soil Texture
Sandy soil in Nolan 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 (1.1%). 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 16 to harvest before frost.
For a dedicated fall crop, sow by Sep 06.
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" | 0" | ❄️ Dormant |
| Feb | — | 2.9" | 0" | ❄️ Dormant |
| Mar | 6.5" | 2.5" | 4" | 🚿 Regular watering |
| Apr | 6.5" | 1.9" | 4.6" | 🚿 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" | 11.2" | 0" | ✅ Rainfall sufficient |
| Sep | 6.5" | 7.2" | 0" | ✅ Rainfall sufficient |
| Oct | 6.5" | 4.8" | 1.7" | 💧 Light watering |
| Nov | 6.5" | 2.6" | 3.9" | 🚿 Regular watering |
| Dec | — | 3.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Nolan 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 — Nolan County, TX
Watercress Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 17 | Feb 17 – Mar 3 |
| Transplant Outdoors | March 24 | Mar 24 – Apr 7 |
| Direct Sow | March 10 | Mar 10 – Mar 31 |
| Harvest | May 5 | May 5 – Jun 9 |
| Fall Sowing | September 6 | Sep 6 – Sep 20 |
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 |
| 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
236 days in Nolan County
Growing Tips for Watercress in Nolan County
Direct sow Watercress outdoors after March 24 in Nolan County when soil has warmed and frost danger has passed.
Sandy soil in Nolan 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 101°F in Nolan County, provide afternoon shade for Watercress and water deeply in the morning.
Your generous 236.0-day season in Nolan 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 Nolan County, TX?
Nolan County is in Zone 8a with an average last frost of March 24. Plan your Watercress planting based on this frost date — see the calendar above for exact timing.
What planting zone is Nolan County, TX?
Nolan County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 24 and first fall frost is November 15.
Your Nolan County Garden Planner — Free
A 24-page printable planner built for Nolan 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.