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When to plant Impatiens in Pulaski County, KY

Pulaski County sits in cold Zone 7a. Plant Impatiens April 25–May 9 for the single annual harvest; the October 22 first frost closes the window.

When to Plant Impatiens in Pulaski County, KY

Pulaski County, Kentucky Zone 7a June

Pulaski County, Kentucky gardeners: here's your June plan

A quick June briefing for Pulaski County, Kentucky gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 18
Avg. first frost October 22
Soil temp (4") 69°F
Watering Low
Pest pressure High
Daylight 14.5 hrs
  1. Begin indoor sowing: impatiens

    Label every cell. You will absolutely forget which is which otherwise.

Before July arrives, get these ready
  • 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.

Pulaski County, Kentucky is in USDA Zone 7a. The average last spring frost is April 18 and the first fall frost is October 22, giving you a growing season of approximately 187 days.

At an elevation of 3,004 feet, Pulaski County receives approximately 54.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Impatiens during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Impatiens root diseases.

Annual Blooms in Summer Pollinator-friendly
Pulaski County, KY (Zone 7a) Moderate season
187 days
Last Spring Frost April 18
187 growing days
First Fall Frost October 22

Pulaski County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7.1

Drainage

Well Drained

Impatiens Planting Risk Windows

Early Start (70% safe) ✓ Fits season (0 days to spare)
Start indoors: Feb 14 Transplant: Apr 18 🌸 Bloom: Jun 27 – Oct 17
Recommended (50%) ✗ May not fit
Start indoors: Feb 21 Transplant: Apr 25 🌸 Bloom: Jul 4 – Oct 24
Safe Start (90%) ✗ May not fit
Start indoors: Mar 9 Transplant: May 11 🌸 Bloom: Jul 20 – Nov 9

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 Pulaski County

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

Soil pH

Your soil pH (5.7–7.1) overlaps with Impatiens's range (6.0–6.5), though not a perfect match.

Soil Texture

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

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

3
successive plantings in your 187-day season

Sow every 6.9 weeks. Last sowing by Aug 08 to harvest before frost.

Impatiens Water Budget

Plant needs
1.0″/week
Rainfall provides
1.2″/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 4.2" 0" ❄️ Dormant
Mar 5.5" 0" ❄️ Dormant
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 4.2" 0.1" 💧 Light watering
Jun 4.3" 5.9" 0" ✅ Rainfall sufficient
Jul 4.3" 5.5" 0" ✅ Rainfall sufficient
Aug 4.3" 5.2" 0" ✅ Rainfall sufficient
Sep 4.3" 3.9" 0.4" 💧 Light watering
Oct 4.3" 3.2" 1.1" 💧 Light watering
Nov 4.2" 0" ❄️ Dormant
Dec 4" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Pulaski 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 ~1,080 GDD — county provides 2,992 GDD Excellent fit

Impatiens Planting Timeline — Pulaski County, KY

Impatiens Planting Calendar

Activity When Date Range
Start Indoors February 21 Feb 21 – Mar 7
Transplant Outdoors April 25 Apr 25 – May 9
Bloom July 4 Jul 4 – Oct 24

· 10" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors
April Transplant Outdoors
May Transplant Outdoors
June
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 7a

📆 Growing Season

187 days in Pulaski County

Growing Tips for Impatiens in Pulaski County

Direct sow Impatiens outdoors after April 18 in Pulaski 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 Pulaski County, KY?

Pulaski County is in Zone 7a with an average last frost of April 18. Plan your Impatiens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Pulaski County, KY?

Pulaski County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 18 and first fall frost is October 22.

When should I plant Impatiens in Pulaski County, KY?

In Pulaski County, KY, plant Impatiens after the last frost (around April 18) and before the first frost (around October 22). Best results when soil holds above 50°F.

What growing zone is Pulaski County, KY for Impatiens?

Pulaski County sits in USDA Zone 7a. Impatiens grows reliably in zones 2a through 11b, so it's a good fit here.

Can Impatiens grow in Pulaski County's climate?

Yes — Impatiens grows well in Pulaski County's temperate climate. Pulaski County averages a 187-day frost-free season, with last frost around April 18 and first frost around October 22.

🌱

Your Pulaski County Garden Planner — Free

A 22-page printable planner built for Pulaski County (Zone 7a). 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 Pulaski County, KY. 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.