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When to Plant Brussels Sprouts in Little River County, AR

Little River County, Arkansas Zone 8b May

May in the garden — Little River County, Arkansas

A quick May briefing for Little River County, Arkansas gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 20
Avg. first frost November 12
Soil temp (4") 68°F
Watering Low
Pest pressure Moderate
Daylight 13.7 hrs
Coming up in June — start thinking about
  • First harvests: brussels sprouts

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Brussels sprouts are a cold-hardy brassica that produces miniature cabbage-like heads along a tall stalk. Flavor improves after a light frost.

Little River County, Arkansas is in USDA Zone 8b. The average last spring frost is March 20 and the first fall frost is November 12, giving you a growing season of approximately 237 days.

At an elevation of 1,477 feet, Little River County receives approximately 54 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Brussels Sprouts during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Brussels Sprouts root diseases.

Little River County, AR (Zone 8b) Long season
237 days
Last Spring Frost March 20
237 growing days
First Fall Frost November 12
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Little River County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (89 days to spare)
Start indoors: Feb 4 Transplant: Mar 11 🍅 Harvest: Jun 10 – Aug 5
Recommended (50%) ✓ Fits season (90 days to spare)
Start indoors: Feb 13 Transplant: Mar 20 🍅 Harvest: Jun 19 – Aug 14
Safe Start (90%) ✓ Fits season (87 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jul 9 – Sep 3

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 Little River County

How your county's soil matches Brussels Sprouts's growing requirements.

Soil pH

Your soil pH (5.7–6.6) overlaps with Brussels Sprouts's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in Little River County is excellent for Brussels Sprouts — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Brussels Sprouts.

How to Plant Brussels Sprouts

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Plant Water Budget

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

Monthly Watering Guide for Brussels Sprouts

Brussels Sprouts needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Brussels Sprouts Needs Rainfall You Supplement Action
Jan 4.8" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 3.9" 5.5" 0" ✅ Rainfall sufficient
Apr 3.9" 4" 0" ✅ Rainfall sufficient
May 3.9" 4.5" 0" ✅ Rainfall sufficient
Jun 3.9" 4.9" 0" ✅ Rainfall sufficient
Jul 3.9" 5.6" 0" ✅ Rainfall sufficient
Aug 3.9" 5.4" 0" ✅ Rainfall sufficient
Sep 3.9" 3.5" 0.4" 💧 Light watering
Oct 3.9" 3.1" 0.8" 💧 Light watering
Nov 3.9" 4.3" 0" ✅ Rainfall sufficient
Dec 4.4" 0" ❄️ Dormant

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

Brussels Sprouts 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.

Brussels Sprouts needs ~1,842 GDD — county provides 3,969 GDD Excellent fit

Brussels Sprouts Planting Timeline — Little River County, AR

Brussels Sprouts Planting Calendar

Activity When Date Range
Start Indoors February 13 Feb 13 – Feb 27
Transplant Outdoors March 20 Mar 20 – Apr 3
Direct Sow March 6 Mar 6 – Mar 27
Harvest June 19 Jun 19 – Aug 14
Fall Sowing September 3 Sep 3 – Sep 17

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

90–130 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

237 days in Little River County

Growing Tips for Brussels Sprouts in Little River County

Direct sow Brussels Sprouts outdoors after March 20 in Little River County when soil has warmed and frost danger has passed.

Common pests for Brussels Sprouts in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 12-14 weeks before first fall frost. Stake tall plants to prevent toppling. Remove lower leaves as sprouts develop to improve air circulation.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Brussels Sprouts in Little River County, AR?

Little River County is in Zone 8b with an average last frost of March 20. Plan your Brussels Sprouts planting based on this frost date — see the calendar above for exact timing.

What planting zone is Little River County, AR?

Little River County, Arkansas is in USDA Hardiness Zone 8b. The average last spring frost is March 20 and first fall frost is November 12.

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Your Little River County Garden Planner — Free

A 24-page printable planner built for Little River 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 Little River 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.