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When to Plant Blackberries in Chicot County, AR

Chicot County, Arkansas Zone 8b May

Top priorities for Chicot County, Arkansas gardeners in May

Here's what deserves your attention in Chicot County, Arkansas this month. Everything below is tailored to Zone 8b and timed around your local frost dates.

Avg. last frost March 14
Avg. first frost November 12
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.7 hrs

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Blackberries are vigorous bramble fruits that produce sweet-tart berries on thorny or thornless canes. They are prolific producers and relatively low-maintenance once established.

Chicot County, Arkansas is in USDA Zone 8b. The average last spring frost is March 14 and the first fall frost is November 12, giving you a growing season of approximately 243 days.

At an elevation of 1,421 feet, Chicot County receives approximately 54 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Blackberries during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Blackberries root diseases.

Chicot County, AR (Zone 8b) Long season
243 days
Last Spring Frost March 14
243 growing days
First Fall Frost November 12
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Chicot County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Mar 26
Recommended (50%) ✓ Fits season
Transplant: Apr 4
Safe Start (90%) ✓ Fits season
Transplant: Apr 28

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 Chicot County

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

Soil pH

Your soil pH (5.4–6.7) overlaps with Blackberries's range (5.5–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Chicot County is excellent for Blackberries — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Blackberries.

Organic Matter

Organic matter is moderate (3.0%). Annual compost additions will help Blackberries.

How to Plant Blackberries

24"
Between Plants
72"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Blackberries

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

Month Blackberries Needs Rainfall You Supplement Action
Jan 4.1" 0" ❄️ Dormant
Feb 4.6" 0" ❄️ Dormant
Mar 4.3" 5.7" 0" ✅ Rainfall sufficient
Apr 4.3" 4.6" 0" ✅ Rainfall sufficient
May 4.3" 4.2" 0.1" 💧 Light watering
Jun 4.3" 5.3" 0" ✅ Rainfall sufficient
Jul 4.3" 5.3" 0" ✅ Rainfall sufficient
Aug 4.3" 5" 0" ✅ Rainfall sufficient
Sep 4.3" 3.7" 0.6" 💧 Light watering
Oct 4.3" 3.1" 1.2" 💧 Light watering
Nov 4.3" 4.4" 0" ✅ Rainfall sufficient
Dec 3.9" 0" ❄️ Dormant

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

Blackberries 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.

Blackberries needs ~9,992 GDD — county provides 4,434 GDD May not mature

Blackberries Planting Timeline — Chicot County, AR

Blackberries Planting Calendar

Activity When Date Range
Transplant Outdoors April 4 Apr 4 – Apr 18

· 24" apart · Rows 72" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

365–730 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

243 days in Chicot County

Growing Tips for Blackberries in Chicot County

Direct sow Blackberries outdoors after March 14 in Chicot County when soil has warmed and frost danger has passed.

Your 243.0-day growing season in Chicot County is tight for Blackberries (365.0-730.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant bare-root canes in spring. Provide a sturdy trellis system. Prune out spent fruiting canes after harvest. New canes fruit in their second year (floricanes).

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Peppers

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Blackberries in Chicot County, AR?

Chicot County is in Zone 8b with an average last frost of March 14. Plan your Blackberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is Chicot County, AR?

Chicot County, Arkansas is in USDA Hardiness Zone 8b. The average last spring frost is March 14 and first fall frost is November 12.

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Your Chicot County Garden Planner — Free

A 24-page printable planner built for Chicot 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.

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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 Chicot County, AR. 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.