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When to plant Impatiens in Lee County County,

Lee County County's 326-day season only supports one Impatiens planting per year. Sow between December 17 and December 31 for the best chance at full maturity before December 19.

When to Plant Impatiens in Lee County, FL

Lee County, Florida Zone 10b June

Top priorities for Lee County, Florida gardeners in June

June is a pivotal month for Lee County, Florida gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost January 28
Avg. first frost December 19
Soil temp (4") 87°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. It's harvest week for impatiens

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

To set up a strong July, finish these tasks
  • 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.

Lee County, Florida is in USDA Zone 10b. The average last spring frost is January 28 and the first fall frost is December 19, giving you a growing season of approximately 325 days.

At an elevation of 408 feet, Lee County receives approximately 61.6 inches of rainfall annually with predominantly sand soil. Summer highs average 86°F, providing good warmth for Impatiens during the growing season. 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
Lee County, FL (Zone 10b) Year-round
325 days
Last Spring Frost January 28
325 growing days
First Fall Frost December 19
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Lee County Soil Profile

Soil Type

Sand

Soil pH

5.1-5.9

Drainage

Well Drained

Impatiens Planting Risk Windows

Early Start (70% safe) ✓ Fits season (85 days to spare)
Start indoors: Nov 24 Transplant: Dec 8 🌸 Bloom: Feb 16 – Sep 14
Recommended (50%) ✓ Fits season (87 days to spare)
Start indoors: Dec 3 Transplant: Dec 17 🌸 Bloom: Feb 25 – Sep 23
Safe Start (90%) ✓ Fits season (59 days to spare)
Start indoors: Jan 4 Transplant: Jan 18 🌸 Bloom: Mar 29 – Oct 25

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 Lee County

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

Soil pH

Your soil pH (5.1–5.9) is more acidic than Impatiens prefers (6.0–6.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Lee 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 (1.4%). 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 325-day season

Sow every 6.9 weeks. Last sowing by Oct 05 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 1,469 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" 3" 1.3" 💧 Light watering
Feb 4.3" 3.3" 1" 💧 Light watering
Mar 4.3" 3.6" 0.7" 💧 Light watering
Apr 4.3" 2.8" 1.5" 💧 Light watering
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 7.6" 0" ✅ Rainfall sufficient
Jul 4.3" 10" 0" ✅ Rainfall sufficient
Aug 4.3" 7.7" 0" ✅ Rainfall sufficient
Sep 4.3" 9.3" 0" ✅ Rainfall sufficient
Oct 4.3" 5.1" 0" ✅ Rainfall sufficient
Nov 4.3" 2.7" 1.6" 💧 Light watering
Dec 4.3" 2.5" 1.8" 💧 Light watering

Water needs are for active growing months only (Jan–Dec in Lee 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 ~979 GDD — county provides 4,727 GDD Excellent fit

Impatiens Planting Timeline — Lee County, FL

Impatiens Planting Calendar

Activity When Date Range
Start Indoors December 3 Dec 3 – Dec 17
Transplant Outdoors December 17 Dec 17 – Dec 31
Bloom February 25 Feb 25 – Sep 23

· 10" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February Bloom
March Bloom
April Bloom
May Bloom
June Bloom
July Bloom
August Bloom
September Bloom
October
November
December Start Indoors Transplant Outdoors
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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 10b

📆 Growing Season

325 days in Lee County

Growing Tips for Impatiens in Lee County

Direct sow Impatiens outdoors after January 28 in Lee County when soil has warmed and frost danger has passed.

Sandy soil in Lee 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 Lee County, FL?

Lee County is in Zone 10b with an average last frost of January 28. Plan your Impatiens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lee County, FL?

Lee County, Florida is in USDA Hardiness Zone 10b. The average last spring frost is January 28 and first fall frost is December 19.

When should I plant Impatiens in Lee County County, ?

In Lee County County, , plant Impatiens after the last frost (around January 28) and before the first frost (around December 19). Best results when soil holds above 50°F.

What growing zone is Lee County County, for Impatiens?

Lee County County sits in USDA Zone 10b. Impatiens grows reliably in zones 2a through 11b, so it's a good fit here.

Can Impatiens grow in Lee County County's climate?

Yes — Impatiens grows well in Lee County County's temperate climate. Lee County County averages a 326-day frost-free season, with last frost around January 28 and first frost around December 19.

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Your Lee County Garden Planner — Free

A 22-page printable planner built for Lee County (Zone 10b). 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 Lee County, FL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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