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When to Plant Spinach in Vernon Parish, LA

Vernon Parish, Louisiana Zone 9a May

Top priorities for Vernon Parish, Louisiana gardeners in May

Your Vernon Parish, Louisiana garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost March 5
Avg. first frost November 16
Soil temp (4") 72°F
Watering Moderate
Pest pressure High
Daylight 13.6 hrs
  1. Basket week: spinach

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

June prep starts now
  • First harvests: spinach

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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.

Vernon Parish, Louisiana is in USDA Zone 9a. The average last spring frost is March 5 and the first fall frost is November 16, giving you a growing season of approximately 256 days.

At an elevation of 481 feet, Vernon Parish receives approximately 54.2 inches of rainfall annually with predominantly loam soil. Summer highs average 97°F, so Spinach may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Spinach root diseases.

Vernon Parish, LA (Zone 9a) Long season
256 days
Last Spring Frost March 5
256 growing days
First Fall Frost November 16
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Vernon Parish Soil Profile

Soil Type

Loam

Soil pH

6.1-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (164 days to spare)
Start indoors: Jan 25 Transplant: Feb 22 🍅 Harvest: Mar 29 – May 31
Recommended (50%) ✓ Fits season (158 days to spare)
Start indoors: Feb 5 Transplant: Mar 5 🍅 Harvest: Apr 9 – Jun 11
Safe Start (90%) ✓ Fits season (154 days to spare)
Start indoors: Mar 9 Transplant: Apr 6 🍅 Harvest: May 11 – Jul 13

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 Vernon Parish

How your county's soil matches Spinach's growing requirements.

Soil pH

Your soil pH (6.1–7.2) overlaps with Spinach's range (6.5–7.5), though not a perfect match.

Soil Texture

The loam soil in Vernon Parish is excellent for Spinach — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Spinach.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Spinach.

How to Plant Spinach

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Spinach

8
successive plantings in your 256-day season

Sow every 4 weeks. Last sowing by Sep 27 to harvest before frost.

For a dedicated fall crop, sow by Sep 21.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.9″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 47 gal / 100 sq ft

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 4.6" 0" ❄️ Dormant
Feb 4.7" 0" ❄️ Dormant
Mar 3" 5.4" 0" ✅ Rainfall sufficient
Apr 3" 3.4" 0" ✅ Rainfall sufficient
May 3" 3.7" 0" ✅ Rainfall sufficient
Jun 3" 4.7" 0" ✅ Rainfall sufficient
Jul 3" 5.8" 0" ✅ Rainfall sufficient
Aug 3" 5.1" 0" ✅ Rainfall sufficient
Sep 3" 4.1" 0" ✅ Rainfall sufficient
Oct 3" 3.8" 0" ✅ Rainfall sufficient
Nov 3" 4.3" 0" ✅ Rainfall sufficient
Dec 4.6" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Vernon Parish). 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 needs ~967 GDD — county provides 5,824 GDD Excellent fit

Spinach Planting Timeline — Vernon Parish, LA

Spinach Planting Calendar

Activity When Date Range
Start Indoors February 5 Feb 5 – Feb 19
Transplant Outdoors March 5 Mar 5 – Mar 19
Direct Sow February 12 Feb 12 – Mar 5
Harvest April 9 Apr 9 – Jun 11
Fall Sowing September 21 Sep 21 – Oct 5

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors Direct Sow
March Transplant Outdoors Direct Sow
April Harvest
May Harvest
June Harvest
July
August
September Fall Sowing
October Fall Sowing
November
December
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Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · Only during dry spells

📅 Days to Maturity

35–50 days

🧪 Soil pH

Needs 6.5–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

256 days in Vernon Parish

Growing Tips for Spinach in Vernon Parish

Direct sow Spinach outdoors after March 05 in Vernon Parish when soil has warmed and frost danger has passed.

Summer highs in Vernon Parish reach 97°F — grow Spinach as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 256.0-day season in Vernon Parish 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 Vernon Parish

Slow-bolting spinach for warm springs — best as fall crop here

Bloomsdale Long Standing Tyee Space

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Spinach Seeds
Life Cycle Annual
Pollination Wind Pollinated
How to Collect Let plants bolt. Harvest seed stalks when seeds turn tan.
Storage Store airtight; viable 5 years at 35°F, under 45% humidity.

Wind pollinated — isolate 1/2 mile for purity. Easy to let bolt in heat.

Frequently Asked Questions

When should I plant Spinach in Vernon Parish, LA?

Vernon Parish is in Zone 9a with an average last frost of March 5. Plan your Spinach planting based on this frost date — see the calendar above for exact timing.

What planting zone is Vernon Parish, LA?

Vernon Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is March 5 and first fall frost is November 16.

🌱

Your Vernon Parish Garden Planner — Free

A 24-page printable planner built for Vernon Parish (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Vernon Parish, LA. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.