When to Plant Cilantro in Walthall County, MS
Your May planting checklist for Walthall County, Mississippi
May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Walthall County, Mississippi.
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Bring in the cilantro
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
Looking ahead to June
- First harvests: cilantro
Cilantro is a dual-purpose herb providing fresh leaves (cilantro) and dried seeds (coriander). It bolts quickly in heat, producing flowers beloved by beneficial insects.
Walthall County, Mississippi is in USDA Zone 8b. The average last spring frost is March 15 and the first fall frost is November 16, giving you a growing season of approximately 246 days.
At an elevation of 207 feet, Walthall County receives approximately 50.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Cilantro during the growing season. Clay soil retains moisture well for Cilantro, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cilantro root diseases.
Walthall County Soil Profile
Soil Type
Clay Loam
Soil pH
5.5-6.6
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 Walthall County
How your county's soil matches Cilantro's growing requirements.
Soil pH
Your soil pH (5.5–6.6) overlaps with Cilantro's range (6.0–7.0), though not a perfect match.
Soil Texture
The clay loam soil in Walthall County is excellent for Cilantro — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Cilantro.
Organic Matter
Organic matter is moderate (2.3%). Annual compost additions will help Cilantro.
How to Plant Cilantro
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Cilantro
Sow every 4.6 weeks. Last sowing by Sep 17 to harvest before frost.
For a dedicated fall crop, sow by Sep 07.
Plant Water Budget
Monthly Watering Guide for Cilantro
Cilantro 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 | Cilantro Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.2" | 0" | ❄️ Dormant |
| Feb | — | 4.5" | 0" | ❄️ Dormant |
| Mar | 2.2" | 4.5" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 4.4" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 4" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 5.9" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 4.2" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 3.5" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 3.4" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Walthall County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Cilantro 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.
Cilantro Planting Timeline — Walthall County, MS
Cilantro Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 8 | Feb 8 – Feb 22 |
| Transplant Outdoors | March 8 | Mar 8 – Mar 22 |
| Direct Sow | March 1 | Mar 1 – Mar 22 |
| Harvest | April 19 | Apr 19 – Jun 21 |
| Fall Sowing | September 7 | Sep 7 – Sep 21 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Transplant Outdoors Direct Sow |
| April | Harvest |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
40–60 days
🧪 Soil pH
Needs 6–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 8b
📆 Growing Season
246 days in Walthall County
Growing Tips for Cilantro in Walthall County
Direct sow Cilantro outdoors after March 15 in Walthall County when soil has warmed and frost danger has passed.
With Walthall County's clay soil (34% clay), work in 3-4 inches of compost before planting Cilantro. Avoid tilling when soil is wet to prevent compaction.
Your generous 246.0-day season in Walthall County allows multiple plantings of Cilantro. Sow every 20.0 days for continuous harvest.
Common pests for Cilantro in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.
General growing tips
Succession sow every 2-3 weeks. Provide afternoon shade in warm weather. Harvest leaves before flowering or allow some plants to go to seed for coriander and self-sowing.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Cilantro in Other Locations
Frequently Asked Questions
When should I plant Cilantro in Walthall County, MS?
Walthall County is in Zone 8b with an average last frost of March 15. Plan your Cilantro planting based on this frost date — see the calendar above for exact timing.
What planting zone is Walthall County, MS?
Walthall County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 15 and first fall frost is November 16.
Your Walthall County Garden Planner — Free
A 24-page printable planner built for Walthall 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.