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When to plant Impatiens in White County, AR

In White County, Impatiens is a spring-only crop. Plant March 25–April 8 once soil hits 50°F.

When to Plant Impatiens in White County, AR

White County, Arkansas Zone 8a June

Your June gardening checklist

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

Avg. last frost March 25
Avg. first frost November 5
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 14.4 hrs
  1. Bring in the impatiens

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

A few tasks this June that'll pay off in July
  • First harvests: impatiens

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Impatiens (Impatiens walleriana) are the go-to annual for shaded beds and containers. They produce a continuous carpet of flat-faced blooms from transplant until frost, needing little deadheading. Their preference for consistent moisture and part-shade makes them ideal under trees and along north-facing borders.

White County, Arkansas is in USDA Zone 8a. The average last spring frost is March 25 and the first fall frost is November 5, giving you a growing season of approximately 225 days.

At an elevation of 851 feet, White County receives approximately 49.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Impatiens during the growing season.

Annual Blooms in Summer Pollinator-friendly
White County, AR (Zone 8a) Long season
225 days
Last Spring Frost March 25
225 growing days
First Fall Frost November 5

White County Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-7.1

Drainage

Well Drained

Impatiens Planting Risk Windows

Early Start (70% safe) ✓ Fits season (22 days to spare)
Start indoors: Jan 16 Transplant: Mar 13 🌸 Bloom: May 22 – Oct 9
Recommended (50%) ✓ Fits season (15 days to spare)
Start indoors: Jan 28 Transplant: Mar 25 🌸 Bloom: Jun 3 – Oct 21
Safe Start (90%) ✓ Fits season (17 days to spare)
Start indoors: Feb 15 Transplant: Apr 12 🌸 Bloom: Jun 21 – Nov 8

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 White County

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

Soil pH

Your soil pH (5.2–7.1) overlaps with Impatiens's range (6.0–6.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Impatiens.

How to Plant Impatiens

10"
Between Plants
12"
Between Rows

Succession Planting Impatiens

4
successive plantings in your 225-day season

Sow every 6.9 weeks. Last sowing by Aug 22 to harvest before frost.

Impatiens 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 167 gal / 100 sq ft

Monthly Watering Guide for Impatiens

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

Month Impatiens Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 4.3" 5" 0" ✅ Rainfall sufficient
Apr 4.3" 3.7" 0.6" 💧 Light watering
May 4.3" 3.5" 0.8" 💧 Light watering
Jun 4.3" 4.3" 0" ✅ Rainfall sufficient
Jul 4.3" 5.7" 0" ✅ Rainfall sufficient
Aug 4.3" 4.9" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 3.1" 1.2" 💧 Light watering
Nov 4.3" 4.1" 0.2" 💧 Light watering
Dec 3.9" 0" ❄️ Dormant

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

Impatiens 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.

Impatiens needs ~1,181 GDD — county provides 3,937 GDD Excellent fit

Impatiens Planting Timeline — White County, AR

Impatiens Planting Calendar

Activity When Date Range
Start Indoors January 28 Jan 28 – Feb 11
Transplant Outdoors March 25 Mar 25 – Apr 8
Bloom June 3 Jun 3 – Oct 21

· 10" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

60–75 days

🧪 Soil pH

Needs 6–6.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

225 days in White County

Growing Tips for Impatiens in White County

Direct sow Impatiens outdoors after March 25 in White County when soil has warmed and frost danger has passed.

General growing tips

Start seeds indoors 8–10 weeks before last frost at 70–75°F; germination requires light — do not cover seeds. Transplant after last frost once nights consistently exceed 50°F. Water regularly — wilting causes bud drop and they rarely fully recover the same flush. Watch for impatiens downy mildew (IDM); consider New Guinea impatiens as a resistant alternative in affected regions. Pinch tips at planting to encourage branching.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Impatiens in White County, AR?

White County is in Zone 8a with an average last frost of March 25. Plan your Impatiens planting based on this frost date — see the calendar above for exact timing.

What planting zone is White County, AR?

White County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 25 and first fall frost is November 5.

When should I plant Impatiens in White County, AR?

In White County, AR, plant Impatiens after the last frost (around March 25) and before the first frost (around November 5). Best results when soil holds above 50°F.

What growing zone is White County, AR for Impatiens?

White County sits in USDA Zone 8a. Impatiens grows reliably in zones 2a through 11b, so it's a good fit here.

Can Impatiens grow in White County's climate?

Yes — Impatiens grows well in White County's temperate climate. White County averages a 225-day frost-free season, with last frost around March 25 and first frost around November 5.

🌱

Your White County Garden Planner — Free

A 22-page printable planner built for White County (Zone 8a). 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 White County, AR. Local conditions may vary. Last updated: July 2026.

Sources & credits

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