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When to Plant Persimmon in St. Landry Parish, LA

St. Landry Parish, Louisiana Zone 9a May

Your May game plan for St. Landry Parish, Louisiana

Each item below is timed to St. Landry Parish, Louisiana's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost February 19
Avg. first frost December 1
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.5 hrs

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Persimmons are ornamental trees producing sweet, honey-flavored fruits in fall. American persimmons are astringent until fully ripe while Asian types can be eaten firm.

St. Landry Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 19 and the first fall frost is December 1, giving you a growing season of approximately 285 days.

At an elevation of 370 feet, St. Landry Parish receives approximately 59.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97°F, so Persimmon may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Persimmon will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Persimmon root diseases.

St. Landry Parish, LA (Zone 9a) Year-round
285 days
Last Spring Frost February 19
285 growing days
First Fall Frost December 1

St. Landry Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Feb 21
Recommended (50%) ✓ Fits season
Transplant: Mar 5
Safe Start (90%) ✓ Fits season
Transplant: Mar 25

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 St. Landry Parish

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

Soil pH

Your soil pH (4.8–6.0) is more acidic than Persimmon prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in St. Landry Parish warms quickly in spring but drains fast. Persimmon will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Persimmon.

How to Plant Persimmon

120"
Between Plants
144"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 310 gal / 100 sq ft

Monthly Watering Guide for Persimmon

Persimmon needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Persimmon Needs Rainfall You Supplement Action
Jan 4.4" 0" ❄️ Dormant
Feb 4.3" 4.7" 0" ✅ Rainfall sufficient
Mar 4.3" 6" 0" ✅ Rainfall sufficient
Apr 4.3" 4.1" 0.2" 💧 Light watering
May 4.3" 4.6" 0" ✅ Rainfall sufficient
Jun 4.3" 4.7" 0" ✅ Rainfall sufficient
Jul 4.3" 7" 0" ✅ Rainfall sufficient
Aug 4.3" 6.4" 0" ✅ Rainfall sufficient
Sep 4.3" 4.1" 0.2" 💧 Light watering
Oct 4.3" 4.3" 0" ✅ Rainfall sufficient
Nov 4.3" 4" 0.3" 💧 Light watering
Dec 4.3" 5.6" 0" ✅ Rainfall sufficient

Water needs are for active growing months only (Feb–Dec in St. Landry Parish). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Persimmon 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.

Persimmon needs ~41,519 GDD — county provides 6,506 GDD May not mature

Persimmon Planting Timeline — St. Landry Parish, LA

Persimmon Planting Calendar

Activity When Date Range
Transplant Outdoors March 5 Mar 5 – Mar 19

· 120" apart · Rows 144" apart

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April
May
June
July
August
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

1095–2555 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

285 days in St. Landry Parish

Growing Tips for Persimmon in St. Landry Parish

Direct sow Persimmon outdoors after February 19 in St. Landry Parish when soil has warmed and frost danger has passed.

Sandy soil in St. Landry Parish dries quickly — mulch Persimmon with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 97°F in St. Landry Parish, provide afternoon shade for Persimmon and water deeply in the morning.

Your 286.0-day growing season in St. Landry Parish is tight for Persimmon (1095.0-2555.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Choose self-fertile varieties or plant male and female trees. American types must be fully soft-ripe before eating. Asian varieties may be eaten when firm. Minimal pruning needed.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Persimmon in St. Landry Parish, LA?

St. Landry Parish is in Zone 9a with an average last frost of February 19. Plan your Persimmon planting based on this frost date — see the calendar above for exact timing.

What planting zone is St. Landry Parish, LA?

St. Landry Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 19 and first fall frost is December 1.

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Your St. Landry Parish Garden Planner — Free

A 24-page printable planner built for St. Landry 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 St. Landry 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.