When to Plant Marigolds in Brown County, TX
Your June game plan for Brown County, Texas
Each item below is timed to Brown County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.
-
Start harvesting marigolds
If you can't use it all right away, check the food-preservation section of your planner.
Before July arrives, get these ready
- First harvests: marigolds
Marigolds (Tagetes patula) are warm-season annuals beloved for their cheerful orange, yellow, and red blooms — and for their well-documented ability to repel pest nematodes in vegetable beds. Easy from seed, drought-tolerant once established, and bloom from early summer until the first hard frost.
Brown County, Texas is in USDA Zone 8a. The average last spring frost is March 22 and the first fall frost is November 14, giving you a growing season of approximately 237 days.
At an elevation of 4,423 feet, Brown County receives approximately 55.4 inches of rainfall annually with predominantly loam soil. Summer highs average 96°F, so Marigolds may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Marigolds root diseases.
Brown County Soil Profile
Soil Type
Loam
Soil pH
6.8-7.5
Drainage
Well Drained
Marigolds 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 Brown County
How your county's soil matches Marigolds's growing requirements.
Soil pH
Your soil pH (6.8–7.5) is within Marigolds's preferred range (6.0–7.5).
Soil Texture
The loam soil in Brown County is excellent for Marigolds — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.1%). Annual compost additions will help Marigolds.
How to Plant Marigolds
Succession Planting Marigolds
Sow every 5.7 weeks. Last sowing by Sep 05 to harvest before frost.
Marigolds Water Budget
Monthly Watering Guide for Marigolds
Marigolds needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Marigolds Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.6" | 0" | ❄️ Dormant |
| Feb | — | 1.6" | 0" | ❄️ Dormant |
| Mar | 2.2" | 3.8" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 5.9" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 7.8" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 8.3" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 7.4" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 7.3" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 5.4" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.1" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 1.7" | 0.5" | 💧 Light watering |
| Dec | — | 1.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Brown County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Marigolds 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.
Marigolds Planting Timeline — Brown County, TX
Marigolds Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 8 | Feb 8 – Feb 22 |
| Transplant Outdoors | March 15 | Mar 15 – Mar 29 |
| Direct Sow | March 15 | Mar 15 – Apr 5 |
| Bloom | May 10 | May 10 – Sep 13 |
Plant 0.3" deep · 10" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Transplant Outdoors Direct Sow |
| April | Direct Sow |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
50–70 days
🧪 Soil pH
Needs 6–7.5 · Your soil: ideal
🗺️ USDA Zone
Zone 8a
📆 Growing Season
237 days in Brown County
Growing Tips for Marigolds in Brown County
Direct sow Marigolds outdoors after March 22 in Brown County when soil has warmed and frost danger has passed.
With summer highs reaching 96°F in Brown County, provide afternoon shade for Marigolds and water deeply in the morning.
Common pests for Marigolds in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
With 55" of annual rainfall in Brown County, ensure good drainage for Marigolds — excess moisture can promote root rot and fungal diseases.
General growing tips
Direct-sow after last frost or start indoors 4-6 weeks earlier. Deadhead spent blooms to keep new flowers coming. French marigolds (T. patula) are the most reliable nematode repellents — plant a band around vegetable beds. Tolerate poor soil but bloom best with monthly compost.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Very easy to save. Seeds are the long, thin, dark pieces inside the dried flower head.
Marigolds in Other Locations
Frequently Asked Questions
When should I plant Marigolds in Brown County, TX?
Brown County is in Zone 8a with an average last frost of March 22. Plan your Marigolds planting based on this frost date — see the calendar above for exact timing.
What planting zone is Brown County, TX?
Brown County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 22 and first fall frost is November 14.
Your Brown County Garden Planner — Free
A 22-page printable planner built for Brown 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.