When to Plant Kale in Harrison County, MS
May in Harrison County, Mississippi — your action list
Each item below is timed to Harrison County, Mississippi's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Start harvesting kale
Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.
Coming up in June — start thinking about
- First harvests: kale
Kale is an exceptionally hardy, nutrient-dense green available in curly, lacinato, and Russian varieties. It tolerates heavy frost and often tastes sweeter after cold exposure.
Harrison County, Mississippi is in USDA Zone 9a. The average last spring frost is March 4 and the first fall frost is November 26, giving you a growing season of approximately 267 days.
At an elevation of 190 feet, Harrison County receives approximately 53 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Kale may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Kale will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Kale root diseases.
Harrison County Soil Profile
Soil Type
Sandy Loam
Soil pH
4.8-6.2
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 Harrison County
How your county's soil matches Kale's growing requirements.
Soil pH
Your soil pH (4.8–6.2) is more acidic than Kale prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
Sandy soil in Harrison County warms quickly in spring but drains fast. Kale will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Kale.
Organic Matter
Organic matter is moderate (2.1%). Annual compost additions will help Kale.
How to Plant Kale
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Kale
Sow every 5.7 weeks. Last sowing by Sep 17 to harvest before frost.
For a dedicated fall crop, sow by Oct 01.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Kale
Kale needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.
| Month | Kale Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.1" | 0" | ❄️ Dormant |
| Feb | — | 4.1" | 0" | ❄️ Dormant |
| Mar | 3.5" | 4.9" | 0" | ✅ Rainfall sufficient |
| Apr | 3.5" | 3.8" | 0" | ✅ Rainfall sufficient |
| May | 3.5" | 4.1" | 0" | ✅ Rainfall sufficient |
| Jun | 3.5" | 4.9" | 0" | ✅ Rainfall sufficient |
| Jul | 3.5" | 6.3" | 0" | ✅ Rainfall sufficient |
| Aug | 3.5" | 4.5" | 0" | ✅ Rainfall sufficient |
| Sep | 3.5" | 4.2" | 0" | ✅ Rainfall sufficient |
| Oct | 3.5" | 3.6" | 0" | ✅ Rainfall sufficient |
| Nov | 3.5" | 4.3" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Harrison County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Kale 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.
Kale Planting Timeline — Harrison County, MS
Kale Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 4 | Feb 4 – Feb 18 |
| Transplant Outdoors | March 4 | Mar 4 – Mar 18 |
| Direct Sow | February 11 | Feb 11 – Mar 4 |
| Harvest | April 29 | Apr 29 – Jun 24 |
| Fall Sowing | October 1 | Oct 1 – Oct 15 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors Direct Sow |
| March | Transplant Outdoors Direct Sow |
| April | Harvest |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.8"/week · Natural rainfall sufficient
📅 Days to Maturity
50–70 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9a
📆 Growing Season
267 days in Harrison County
Growing Tips for Kale in Harrison County
Direct sow Kale outdoors after March 04 in Harrison County when soil has warmed and frost danger has passed.
Sandy soil in Harrison County dries quickly — mulch Kale with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
Summer highs in Harrison County reach 96°F — grow Kale as a spring or fall crop. Use shade cloth if planting in summer.
Common pests for Kale in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct sow or transplant in early spring or late summer. Harvest outer leaves first to keep plants productive. Kale overwinters in many climates and can provide greens all year.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Isolate 1/2 mile from other brassicas (broccoli, cabbage, etc.) — they all cross.
Kale in Other Locations
Frequently Asked Questions
When should I plant Kale in Harrison County, MS?
Harrison County is in Zone 9a with an average last frost of March 4. Plan your Kale planting based on this frost date — see the calendar above for exact timing.
What planting zone is Harrison County, MS?
Harrison County, Mississippi is in USDA Hardiness Zone 9a. The average last spring frost is March 4 and first fall frost is November 26.
Your Harrison County Garden Planner — Free
A 24-page printable planner built for Harrison County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.