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When to plant Impatiens in Coffee County, AL

Plant Impatiens in Coffee County, between March 5 and March 19 — the only viable window. Zone 8b's short season (247 frost-free days) rules out a fall crop.

When to Plant Impatiens in Coffee County, AL

Coffee County, Alabama Zone 8b June

This month in Coffee County, Alabama

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

Avg. last frost March 12
Avg. first frost November 14
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Collect impatiens at their peak

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Get ahead of 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.

Coffee County, Alabama is in USDA Zone 8b. The average last spring frost is March 12 and the first fall frost is November 14, giving you a growing season of approximately 247 days.

At an elevation of 342 feet, Coffee County receives approximately 55.7 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, so Impatiens may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Impatiens, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Impatiens root diseases.

Annual Blooms in Summer Pollinator-friendly
Coffee County, AL (Zone 8b) Long season
247 days
Last Spring Frost March 12
247 growing days
First Fall Frost November 14

Coffee County Soil Profile

Soil Type

Clay Loam

Soil pH

5.8-6.7

Drainage

Well Drained

Impatiens Planting Risk Windows

Early Start (70% safe) ✓ Fits season (30 days to spare)
Start indoors: Jan 9 Transplant: Feb 27 🌸 Bloom: May 8 – Oct 9
Recommended (50%) ✓ Fits season (30 days to spare)
Start indoors: Jan 15 Transplant: Mar 5 🌸 Bloom: May 14 – Oct 15
Safe Start (90%) ✓ Fits season (24 days to spare)
Start indoors: Feb 6 Transplant: Mar 27 🌸 Bloom: Jun 5 – Nov 6

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 Coffee County

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

Soil pH

Your soil pH (5.8–6.7) overlaps with Impatiens's range (6.0–6.5), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Impatiens.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Impatiens.

How to Plant Impatiens

10"
Between Plants
12"
Between Rows

Succession Planting Impatiens

4
successive plantings in your 247-day season

Sow every 6.9 weeks. Last sowing by Aug 31 to harvest before frost.

Impatiens Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 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 5.2" 0" ❄️ Dormant
Feb 4.7" 0" ❄️ Dormant
Mar 4.3" 5.4" 0" ✅ Rainfall sufficient
Apr 4.3" 4.7" 0" ✅ Rainfall sufficient
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 4.5" 0" ✅ Rainfall sufficient
Jul 4.3" 5.8" 0" ✅ Rainfall sufficient
Aug 4.3" 5.2" 0" ✅ Rainfall sufficient
Sep 4.3" 4.2" 0.1" 💧 Light watering
Oct 4.3" 3" 1.3" 💧 Light watering
Nov 4.3" 3.8" 0.5" 💧 Light watering
Dec 4.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Coffee 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 ~1,536 GDD — county provides 5,619 GDD Excellent fit

Impatiens Planting Timeline — Coffee County, AL

Impatiens Planting Calendar

Activity When Date Range
Start Indoors January 15 Jan 15 – Jan 29
Transplant Outdoors March 5 Mar 5 – Mar 19
Bloom May 14 May 14 – Oct 15

· 10" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

60–75 days

🧪 Soil pH

Needs 6–6.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

247 days in Coffee County

Growing Tips for Impatiens in Coffee County

Direct sow Impatiens outdoors after March 12 in Coffee County when soil has warmed and frost danger has passed.

With Coffee County's clay soil (32% clay), work in 3-4 inches of compost before planting Impatiens. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97°F in Coffee County, provide afternoon shade for Impatiens and water deeply in the morning.

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 Coffee County, AL?

Coffee County is in Zone 8b with an average last frost of March 12. Plan your Impatiens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Coffee County, AL?

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

When should I plant Impatiens in Coffee County, AL?

In Coffee County, AL, plant Impatiens after the last frost (around March 12) and before the first frost (around November 14). Best results when soil holds above 50°F.

What growing zone is Coffee County, AL for Impatiens?

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

Can Impatiens grow in Coffee County's climate?

Yes — Impatiens grows well in Coffee County's temperate climate. Coffee County averages a 247-day frost-free season, with last frost around March 12 and first frost around November 14.

🌱

Your Coffee County Garden Planner — Free

A 22-page printable planner built for Coffee 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 Coffee County, AL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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