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When to Plant Jostaberry in Catahoula Parish, LA

Catahoula Parish, Louisiana Zone 8b April

April to-do list for Catahoula Parish, Louisiana

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

Avg. last frost March 5
Avg. first frost November 16
Soil temp (4") 63°F
Watering Low
Pest pressure High
Daylight 12.8 hrs

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Jostaberry is a thornless hybrid of black currant and gooseberry, producing medium-sized, dark berries with a complex, tart-sweet flavor. It is vigorous and disease-resistant.

Catahoula Parish, Louisiana is in USDA Zone 8b. 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 73 feet, Catahoula Parish receives approximately 56.1 inches of rainfall annually with predominantly loam soil. Summer highs average 91°F, providing good warmth for Jostaberry during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Jostaberry root diseases.

Catahoula Parish, LA (Zone 8b) Long season
256 days
Last Spring Frost March 5
256 growing days
First Fall Frost November 16
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Catahoula Parish Soil Profile

Soil Type

Loam

Soil pH

6.1-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Mar 20
Recommended (50%) ✓ Fits season
Transplant: Mar 26
Safe Start (90%) ✓ Fits season
Transplant: Apr 15

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 Catahoula Parish

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

Soil pH

Your soil pH (6.1–7.1) is more alkaline than Jostaberry prefers (6.0–6.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

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

How to Plant Jostaberry

48"
Between Plants
72"
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 181 gal / 100 sq ft

Monthly Watering Guide for Jostaberry

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

Month Jostaberry Needs Rainfall You Supplement Action
Jan 4.9" 0" ❄️ Dormant
Feb 4.9" 0" ❄️ Dormant
Mar 4.3" 5.5" 0" ✅ Rainfall sufficient
Apr 4.3" 4.3" 0" ✅ Rainfall sufficient
May 4.3" 4.9" 0" ✅ Rainfall sufficient
Jun 4.3" 4.5" 0" ✅ Rainfall sufficient
Jul 4.3" 5.3" 0" ✅ Rainfall sufficient
Aug 4.3" 6.3" 0" ✅ Rainfall sufficient
Sep 4.3" 3.7" 0.6" 💧 Light watering
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 4.3" 4" 0.3" 💧 Light watering
Dec 4.4" 0" ❄️ Dormant

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

Jostaberry 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.

Jostaberry needs ~16,653 GDD — county provides 4,672 GDD May not mature

Jostaberry Planting Timeline — Catahoula Parish, LA

Jostaberry Planting Calendar

Activity When Date Range
Transplant Outdoors March 26 Mar 26 – Apr 9

· 48" apart · Rows 72" apart

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 6–6.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8b

📆 Growing Season

256 days in Catahoula Parish

Growing Tips for Jostaberry in Catahoula Parish

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

Your 256.0-day growing season in Catahoula Parish is tight for Jostaberry (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant in rich, well-drained soil. No special pruning required beyond removing old wood. Self-fertile but yields improve with a second bush. Berries ripen midsummer.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Jostaberry in Catahoula Parish, LA?

Catahoula Parish is in Zone 8b with an average last frost of March 5. Plan your Jostaberry planting based on this frost date — see the calendar above for exact timing.

What planting zone is Catahoula Parish, LA?

Catahoula Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 5 and first fall frost is November 16.

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Your Catahoula Parish Garden Planner — Free

A 24-page printable planner built for Catahoula Parish (Zone 8b). 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 Catahoula Parish, LA. Local conditions may vary. Last updated: April 2026.

Sources & credits

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