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When to plant Impatiens in Baldwin County County,

Baldwin County County's short 266-day growing season means one Impatiens planting between February 17 and March 3. No fall crop in Zone 9a.

When to Plant Impatiens in Baldwin County, AL

Baldwin County, Alabama Zone 9a June

June to-do list for Baldwin County, Alabama

Welcome to June in Zone 9a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 3
Avg. first frost November 24
Soil temp (4") 81°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Bring in the impatiens

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

July will be here before you know it — start on
  • 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.

Baldwin County, Alabama is in USDA Zone 9a. The average last spring frost is March 3 and the first fall frost is November 24, giving you a growing season of approximately 266 days.

At an elevation of 336 feet, Baldwin County receives approximately 53 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°F, so Impatiens may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Impatiens will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Impatiens root diseases.

Annual Blooms in Summer Pollinator-friendly
Baldwin County, AL (Zone 9a) Long season
266 days
Last Spring Frost March 3
266 growing days
First Fall Frost November 24
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Baldwin County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.1-6.2

Drainage

Well Drained

Impatiens Planting Risk Windows

Early Start (70% safe) ✓ Fits season (47 days to spare)
Start indoors: Dec 25 Transplant: Feb 5 🌸 Bloom: Apr 16 – Oct 1
Recommended (50%) ✓ Fits season (42 days to spare)
Start indoors: Jan 6 Transplant: Feb 17 🌸 Bloom: Apr 28 – Oct 13
Safe Start (90%) ✓ Fits season (42 days to spare)
Start indoors: Jan 23 Transplant: Mar 6 🌸 Bloom: May 15 – Oct 30

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 Baldwin County

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

Soil pH

Your soil pH (5.1–6.2) is more acidic than Impatiens prefers (6.0–6.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Baldwin County warms quickly in spring but drains fast. Impatiens will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Impatiens.

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting Impatiens.

How to Plant Impatiens

10"
Between Plants
12"
Between Rows

Succession Planting Impatiens

5
successive plantings in your 266-day season

Sow every 6.9 weeks. Last sowing by Sep 10 to harvest before frost.

Impatiens Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/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 4.6" 0" ❄️ Dormant
Feb 4.4" 0" ❄️ Dormant
Mar 4.3" 5.2" 0" ✅ Rainfall sufficient
Apr 4.3" 4.1" 0.2" 💧 Light watering
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 3.9" 0.4" 💧 Light watering
Jul 4.3" 5.3" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 2.9" 1.4" 💧 Light watering
Nov 4.3" 4.1" 0.2" 💧 Light watering
Dec 4.6" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Baldwin 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 ~1,434 GDD — county provides 5,652 GDD Excellent fit

Impatiens Planting Timeline — Baldwin County, AL

Impatiens Planting Calendar

Activity When Date Range
Start Indoors January 6 Jan 6 – Jan 20
Transplant Outdoors February 17 Feb 17 – Mar 3
Bloom April 28 Apr 28 – Oct 13

· 10" apart · Rows 12" apart

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 9a

📆 Growing Season

266 days in Baldwin County

Growing Tips for Impatiens in Baldwin County

Direct sow Impatiens outdoors after March 03 in Baldwin County when soil has warmed and frost danger has passed.

Sandy soil in Baldwin County dries quickly — mulch Impatiens with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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 Baldwin County, AL?

Baldwin County is in Zone 9a with an average last frost of March 3. Plan your Impatiens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Baldwin County, AL?

Baldwin County, Alabama is in USDA Hardiness Zone 9a. The average last spring frost is March 3 and first fall frost is November 24.

When should I plant Impatiens in Baldwin County County, ?

In Baldwin County County, , plant Impatiens after the last frost (around March 3) and before the first frost (around November 24). Best results when soil holds above 50°F.

What growing zone is Baldwin County County, for Impatiens?

Baldwin County County sits in USDA Zone 9a. Impatiens grows reliably in zones 2a through 11b, so it's a good fit here.

Can Impatiens grow in Baldwin County County's climate?

Yes — Impatiens grows well in Baldwin County County's temperate climate. Baldwin County County averages a 266-day frost-free season, with last frost around March 3 and first frost around November 24.

🌱

Your Baldwin County Garden Planner — Free

A 22-page printable planner built for Baldwin County (Zone 9a). 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 Baldwin 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.