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When to Plant Spinach in East Baton Rouge Parish, LA

East Baton Rouge Parish, Louisiana Zone 9a May

May to-do list for East Baton Rouge Parish, Louisiana

We've pulled the most time-sensitive tasks for East Baton Rouge Parish, Louisiana this May and put them front and centre. Tackle them in order.

Avg. last frost February 21
Avg. first frost December 1
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Pick spinach

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

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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.

East Baton Rouge Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 21 and the first fall frost is December 1, giving you a growing season of approximately 283 days.

At an elevation of 96 feet, East Baton Rouge Parish receives approximately 51.6 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°F, so Spinach may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Spinach will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Spinach root diseases.

East Baton Rouge Parish, LA (Zone 9a) Year-round
283 days
Last Spring Frost February 21
283 growing days
First Fall Frost December 1

East Baton Rouge Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (186 days to spare)
Start indoors: Jan 15 Transplant: Feb 12 🍅 Harvest: Mar 19 – May 21
Recommended (50%) ✓ Fits season (185 days to spare)
Start indoors: Jan 24 Transplant: Feb 21 🍅 Harvest: Mar 28 – May 30
Safe Start (90%) ✓ Fits season (180 days to spare)
Start indoors: Feb 12 Transplant: Mar 12 🍅 Harvest: Apr 16 – Jun 18

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 East Baton Rouge Parish

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

Soil pH

Your soil pH (4.9–6.4) is more acidic than Spinach prefers (6.5–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in East Baton Rouge Parish warms quickly in spring but drains fast. Spinach will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Spinach.

Organic Matter

Organic matter is moderate (2.1%). 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

9
successive plantings in your 283-day season

Sow every 4 weeks. Last sowing by Oct 12 to harvest before frost.

For a dedicated fall crop, sow by Oct 06.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 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 3.9" 0" ❄️ Dormant
Feb 3" 3.5" 0" ✅ Rainfall sufficient
Mar 3" 5.4" 0" ✅ Rainfall sufficient
Apr 3" 4.2" 0" ✅ Rainfall sufficient
May 3" 4" 0" ✅ Rainfall sufficient
Jun 3" 4.6" 0" ✅ Rainfall sufficient
Jul 3" 5.1" 0" ✅ Rainfall sufficient
Aug 3" 4.2" 0" ✅ Rainfall sufficient
Sep 3" 4.2" 0" ✅ Rainfall sufficient
Oct 3" 3.7" 0" ✅ Rainfall sufficient
Nov 3" 4.1" 0" ✅ Rainfall sufficient
Dec 3" 4.6" 0" ✅ Rainfall sufficient

Water needs are for active growing months only (Feb–Dec in East Baton Rouge 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 ~903 GDD — county provides 6,035 GDD Excellent fit

Spinach Planting Timeline — East Baton Rouge Parish, LA

Spinach Planting Calendar

Activity When Date Range
Start Indoors January 24 Jan 24 – Feb 7
Transplant Outdoors February 21 Feb 21 – Mar 7
Direct Sow January 31 Jan 31 – Feb 21
Harvest March 28 Mar 28 – May 30
Fall Sowing October 6 Oct 6 – Oct 20

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

Month-by-Month Timeline

MonthActivities
January Start Indoors Direct Sow
February Start Indoors Transplant Outdoors Direct Sow
March Transplant Outdoors Harvest
April Harvest
May Harvest
June
July
August
September
October Fall Sowing
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 9a

📆 Growing Season

283 days in East Baton Rouge Parish

Growing Tips for Spinach in East Baton Rouge Parish

Direct sow Spinach outdoors after February 21 in East Baton Rouge Parish when soil has warmed and frost danger has passed.

Sandy soil in East Baton Rouge Parish dries quickly — mulch Spinach with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Summer highs in East Baton Rouge Parish reach 95°F — grow Spinach as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 284.0-day season in East Baton Rouge 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 East Baton Rouge 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 East Baton Rouge Parish, LA?

East Baton Rouge Parish is in Zone 9a with an average last frost of February 21. Plan your Spinach planting based on this frost date — see the calendar above for exact timing.

What planting zone is East Baton Rouge Parish, LA?

East Baton Rouge Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 21 and first fall frost is December 1.

🌱

Your East Baton Rouge Parish Garden Planner — Free

A 24-page printable planner built for East Baton Rouge 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 East Baton Rouge 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.