When to Plant Spinach in Humphreys County, MS
Humphreys County, Mississippi gardeners: here's your May plan
May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Humphreys County, Mississippi.
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Harvest spinach as they ripen
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: spinach
Spinach is a nutrient-packed cool-season green that grows quickly in spring and fall. It is rich in iron, vitamins, and antioxidants and excellent raw or cooked.
Humphreys County, Mississippi is in USDA Zone 8b. The average last spring frost is March 6 and the first fall frost is November 18, giving you a growing season of approximately 257 days.
At an elevation of 303 feet, Humphreys County receives approximately 57.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Spinach during the growing season. Clay soil retains moisture well for Spinach, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Spinach root diseases.
Humphreys County Soil Profile
Soil Type
Clay Loam
Soil pH
5.5-6.8
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 Humphreys County
How your county's soil matches Spinach's growing requirements.
Soil pH
Your soil pH (5.5–6.8) is more acidic than Spinach prefers (6.5–7.5). Add garden lime to raise pH.
Soil Texture
The clay loam soil in Humphreys County is excellent for Spinach — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.3%). Annual compost additions will help Spinach.
How to Plant Spinach
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Spinach
Sow every 4 weeks. Last sowing by Sep 29 to harvest before frost.
For a dedicated fall crop, sow by Sep 09.
Plant Water Budget
Monthly Watering Guide for Spinach
Spinach needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.
| Month | Spinach Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.9" | 0" | ❄️ Dormant |
| Feb | — | 4.5" | 0" | ❄️ Dormant |
| Mar | 3" | 5.6" | 0" | ✅ Rainfall sufficient |
| Apr | 3" | 4.1" | 0" | ✅ Rainfall sufficient |
| May | 3" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jun | 3" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jul | 3" | 6.4" | 0" | ✅ Rainfall sufficient |
| Aug | 3" | 5.9" | 0" | ✅ Rainfall sufficient |
| Sep | 3" | 4.1" | 0" | ✅ Rainfall sufficient |
| Oct | 3" | 3.8" | 0" | ✅ Rainfall sufficient |
| Nov | 3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Humphreys County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Spinach 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.
Spinach Planting Timeline — Humphreys County, MS
Spinach Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 30 | Jan 30 – Feb 13 |
| Transplant Outdoors | March 6 | Mar 6 – Mar 20 |
| Direct Sow | February 20 | Feb 20 – Mar 13 |
| Harvest | April 10 | Apr 10 – Jun 12 |
| Fall Sowing | September 9 | Sep 9 – Sep 23 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors Direct Sow |
| 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
0.7"/week · Natural rainfall sufficient
📅 Days to Maturity
35–50 days
🧪 Soil pH
Needs 6.5–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 8b
📆 Growing Season
257 days in Humphreys County
Growing Tips for Spinach in Humphreys County
Direct sow Spinach outdoors after March 06 in Humphreys County when soil has warmed and frost danger has passed.
With Humphreys County's clay soil (29% clay), work in 3-4 inches of compost before planting Spinach. Avoid tilling when soil is wet to prevent compaction.
Summer highs in Humphreys County reach 93°F — grow Spinach as a spring or fall crop. Use shade cloth if planting in summer.
Your generous 257.0-day season in Humphreys County allows multiple plantings of Spinach. Sow every 17.0 days for continuous harvest.
General growing tips
Direct sow as soon as soil can be worked in spring. Plant in partial shade for summer crops to delay bolting. Succession plant every 2 weeks for continuous harvest.
Recommended Spinach Varieties for Humphreys County
Slow-bolting spinach for warm springs — best as fall crop here
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Wind pollinated — isolate 1/2 mile for purity. Easy to let bolt in heat.
Spinach in Other Locations
Frequently Asked Questions
When should I plant Spinach in Humphreys County, MS?
Humphreys County is in Zone 8b with an average last frost of March 6. Plan your Spinach planting based on this frost date — see the calendar above for exact timing.
What planting zone is Humphreys County, MS?
Humphreys County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 6 and first fall frost is November 18.
Your Humphreys County Garden Planner — Free
A 24-page printable planner built for Humphreys 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.