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When to plant Impatiens in Hardee County County,

Plant Impatiens in Hardee County County during the brief January 6–January 20 window. With 328 frost-free days, fall plantings can't mature before December 20.

When to Plant Impatiens in Hardee County, FL

Hardee County, Florida Zone 9b June

This month in Hardee County, Florida

We've pulled the most time-sensitive tasks for Hardee County, Florida this June and put them front and centre. Tackle them in order.

Avg. last frost January 27
Avg. first frost December 20
Soil temp (4") 88°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Collect impatiens at their peak

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

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.

Hardee County, Florida is in USDA Zone 9b. The average last spring frost is January 27 and the first fall frost is December 20, giving you a growing season of approximately 327 days.

At an elevation of 374 feet, Hardee County receives approximately 59.8 inches of rainfall annually with predominantly sand soil. Summer highs average 102°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
Hardee County, FL (Zone 9b) Year-round
327 days
Last Spring Frost January 27
327 growing days
First Fall Frost December 20
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Hardee County Soil Profile

Soil Type

Sand

Soil pH

4.9-5.8

Drainage

Well Drained

Impatiens Planting Risk Windows

Early Start (70% safe) ✓ Fits season (91 days to spare)
Start indoors: Nov 25 Transplant: Dec 30 🌸 Bloom: Mar 10 – Sep 8
Recommended (50%) ✓ Fits season (96 days to spare)
Start indoors: Dec 2 Transplant: Jan 6 🌸 Bloom: Mar 17 – Sep 15
Safe Start (90%) ✓ Fits season (76 days to spare)
Start indoors: Dec 27 Transplant: Jan 31 🌸 Bloom: Apr 11 – Oct 10

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 Hardee County

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

Soil pH

Your soil pH (4.9–5.8) is more acidic than Impatiens prefers (6.0–6.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Hardee 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 (1.3%). Add 2-3 inches of compost before planting Impatiens.

How to Plant Impatiens

10"
Between Plants
12"
Between Rows

Succession Planting Impatiens

6
successive plantings in your 327-day season

Sow every 6.9 weeks. Last sowing by Oct 06 to harvest before frost.

Impatiens Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,560 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 4.3" 2.7" 1.6" 💧 Light watering
Feb 4.3" 3.1" 1.2" 💧 Light watering
Mar 4.3" 3.3" 1" 💧 Light watering
Apr 4.3" 2.9" 1.4" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 8.7" 0" ✅ Rainfall sufficient
Jul 4.3" 10.3" 0" ✅ Rainfall sufficient
Aug 4.3" 8.7" 0" ✅ Rainfall sufficient
Sep 4.3" 7.5" 0" ✅ Rainfall sufficient
Oct 4.3" 4.6" 0" ✅ Rainfall sufficient
Nov 4.3" 2.1" 2.2" 🚿 Regular watering
Dec 4.3" 2.1" 2.2" 🚿 Regular watering

Water needs are for active growing months only (Jan–Dec in Hardee 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 ~1,789 GDD — county provides 8,692 GDD Excellent fit

Impatiens Planting Timeline — Hardee County, FL

Impatiens Planting Calendar

Activity When Date Range
Start Indoors December 2 Dec 2 – Dec 16
Transplant Outdoors January 6 Jan 6 – Jan 20
Bloom March 17 Mar 17 – Sep 15

· 10" apart · Rows 12" apart

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

60–75 days

🧪 Soil pH

Needs 6–6.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

327 days in Hardee County

Growing Tips for Impatiens in Hardee County

Direct sow Impatiens outdoors after January 27 in Hardee County when soil has warmed and frost danger has passed.

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

With summer highs reaching 102°F in Hardee 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 Hardee County, FL?

Hardee County is in Zone 9b with an average last frost of January 27. Plan your Impatiens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Hardee County, FL?

Hardee County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is January 27 and first fall frost is December 20.

When should I plant Impatiens in Hardee County County, ?

In Hardee County County, , plant Impatiens after the last frost (around January 27) and before the first frost (around December 20). Best results when soil holds above 50°F.

What growing zone is Hardee County County, for Impatiens?

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

Can Impatiens grow in Hardee County County's climate?

Yes — Impatiens grows well in Hardee County County's temperate climate. Hardee County County averages a 328-day frost-free season, with last frost around January 27 and first frost around December 20.

🌱

Your Hardee County Garden Planner — Free

A 22-page printable planner built for Hardee County (Zone 9b). 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 Hardee County, FL. 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.