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When to plant Phlox in Lee County County,

Lee County County gardeners should plant Phlox between March 27 and April 17 in spring. With Lee County County's Zone 8b climate (last frost March 27), Phlox needs 110 days to mature — plant by July 16 for a full harvest.

When to Plant Phlox in Lee County, AL

Lee County, Alabama Zone 8b June

Your June game plan for Lee County, Alabama

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

Avg. last frost March 27
Avg. first frost November 3
Soil temp (4") 77°F
Watering Low
Pest pressure High
Daylight 14.1 hrs
  1. Collect phlox at their peak

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

Before July arrives, get these ready
  • First harvests: phlox

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Garden Phlox (Phlox paniculata) is a beloved native perennial of eastern North America, producing large, domed clusters of fragrant flowers atop upright stems from mid-summer into fall. Its sweet honey-like fragrance carries on summer evenings and draws hummingbirds, butterflies, and sphinx moths. Modern cultivars offer colors spanning white, pink, salmon, red, purple, and bicolors. A classic cottage garden stalwart, phlox combines well with black-eyed Susans, echinacea, and ornamental grasses in naturalistic plantings. Select mildew-resistant cultivars for best long-term performance.

Lee County, Alabama is in USDA Zone 8b. The average last spring frost is March 27 and the first fall frost is November 3, giving you a growing season of approximately 221 days.

At an elevation of 461 feet, Lee County receives approximately 52.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Phlox during the growing season. Clay soil retains moisture well for Phlox, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Phlox root diseases.

Perennial Blooms in Summer Pollinator-friendly Good for cutting Fragrant
Lee County, AL (Zone 8b) Long season
221 days
Last Spring Frost March 27
221 growing days
First Fall Frost November 3

Lee County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.5

Drainage

Well Drained

Phlox Planting Risk Windows

Early Start (70% safe) ✓ Fits season (88 days to spare)
Start indoors: Jan 16 Transplant: Mar 13 🌸 Bloom: May 22 – Jul 31
Recommended (50%) ✓ Fits season (81 days to spare)
Start indoors: Jan 30 Transplant: Mar 27 🌸 Bloom: Jun 5 – Aug 14
Safe Start (90%) ✓ Fits season (84 days to spare)
Start indoors: Feb 20 Transplant: Apr 17 🌸 Bloom: Jun 26 – Sep 4

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 Phlox's growing requirements.

Soil pH

Your soil pH (5.7–6.5) overlaps with Phlox's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Phlox.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Phlox.

How to Plant Phlox

0.3"
Planting Depth
18"
Between Plants
24"
Between Rows

Succession Planting Phlox

3
successive plantings in your 221-day season

Sow every 9.1 weeks. Last sowing by Jul 16 to harvest before frost.

Phlox 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 Phlox

Phlox needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Phlox Needs Rainfall You Supplement Action
Jan 4.8" 0" ❄️ Dormant
Feb 4.3" 0" ❄️ Dormant
Mar 4.3" 4.8" 0" ✅ Rainfall sufficient
Apr 4.3" 4.3" 0" ✅ Rainfall sufficient
May 4.3" 3.9" 0.4" 💧 Light watering
Jun 4.3" 4" 0.3" 💧 Light watering
Jul 4.3" 5.4" 0" ✅ Rainfall sufficient
Aug 4.3" 5.1" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 3.7" 0.6" 💧 Light watering
Nov 4.3" 3.4" 0.9" 💧 Light watering
Dec 4.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Lee County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Phlox 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.

Phlox needs ~1,734 GDD — county provides 4,033 GDD Excellent fit

Phlox Planting Timeline — Lee County, AL

Phlox Planting Calendar

Activity When Date Range
Start Indoors January 30 Jan 30 – Feb 13
Transplant Outdoors March 27 Mar 27 – Apr 10
Direct Sow March 27 Mar 27 – Apr 17
Bloom June 5 Jun 5 – Aug 14

Plant 0.3" deep · 18" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

80–110 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

221 days in Lee County

Growing Tips for Phlox in Lee County

Direct sow Phlox outdoors after March 27 in Lee County when soil has warmed and frost danger has passed.

With Lee County's clay soil (31% clay), work in 3-4 inches of compost before planting Phlox. Avoid tilling when soil is wet to prevent compaction.

General growing tips

Start seeds indoors 8–10 weeks before last frost, or transplant container divisions in spring. Named cultivar seeds may not come true; divisions from named plants are the preferred propagation method. Space generously (18–24 inches) and avoid overhead watering to reduce powdery mildew risk. Good air circulation is critical — thin clumps to the strongest 5–7 stems per plant in spring. Deadhead after the primary bloom flush to encourage secondary flowering. Division every 2–3 years in spring keeps plants vigorous. Fall planting of divisions (Zones 5+) is equally effective. Year 2+ plants develop into full clumps with the most prolific bloom.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Phlox in Lee County, AL?

Lee County is in Zone 8b with an average last frost of March 27. Plan your Phlox planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lee County, AL?

Lee County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 27 and first fall frost is November 3.

When should I plant Phlox in Lee County County, ?

In Lee County County, , plant Phlox after the last frost (around March 27) and before the first frost (around November 3). Best results when soil holds above 50°F.

What growing zone is Lee County County, for Phlox?

Lee County County sits in USDA Zone 8b. Phlox grows reliably in zones 3a through 9a, so it's a good fit here.

Can Phlox grow in Lee County County's climate?

Yes — Phlox grows well in Lee County County's temperate climate. Lee County County averages a 221-day frost-free season, with last frost around March 27 and first frost around November 3.

🌱

Your Lee County Garden Planner — Free

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

Sources & credits

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