When to plant Phlox in Burke County, GA
Spring Phlox in Burke County goes in March 22–April 12, once nighttime temps stop dipping near freezing.
When to Plant Phlox in Burke County, GA
June in the garden — Burke County, Georgia
We've pulled the most time-sensitive tasks for Burke County, Georgia this June and put them front and centre. Tackle them in order.
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Collect phlox at their peak
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
Before July arrives, get these ready
- First harvests: phlox
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.
Burke County, Georgia is in USDA Zone 8b. The average last spring frost is March 22 and the first fall frost is November 8, giving you a growing season of approximately 231 days.
At an elevation of 370 feet, Burke County receives approximately 59.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, so Phlox may need afternoon shade and extra watering during peak heat. 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.
Burke County Soil Profile
Soil Type
Clay Loam
Soil pH
5.3-6.7
Drainage
Well Drained
Phlox Planting Risk Windows
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 Burke County
How your county's soil matches Phlox's growing requirements.
Soil pH
Your soil pH (5.3–6.7) overlaps with Phlox's range (6.0–7.0), though not a perfect match.
Soil Texture
The clay loam soil in Burke 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 (2.4%). Annual compost additions will help Phlox.
How to Plant Phlox
Succession Planting Phlox
Sow every 9.1 weeks. Last sowing by Jul 21 to harvest before frost.
Phlox Water Budget
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 | — | 4.6" | 0" | ❄️ Dormant |
| Feb | — | 4.9" | 0" | ❄️ Dormant |
| Mar | 4.3" | 6" | 0" | ✅ Rainfall sufficient |
| Apr | 4.3" | 5.1" | 0" | ✅ Rainfall sufficient |
| May | 4.3" | 5.5" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 5.1" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 5.9" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 5.1" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 4.3" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 4.3" | 0" | ✅ Rainfall sufficient |
| Nov | 4.3" | 4.1" | 0.2" | 💧 Light watering |
| Dec | — | 5.1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Burke 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 Planting Timeline — Burke County, GA
Phlox Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 25 | Jan 25 – Feb 8 |
| Transplant Outdoors | March 22 | Mar 22 – Apr 5 |
| Direct Sow | March 22 | Mar 22 – Apr 12 |
| Bloom | May 31 | May 31 – Aug 9 |
Plant 0.3" deep · 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors |
| March | Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Bloom |
| 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
231 days in Burke County
Growing Tips for Phlox in Burke County
Direct sow Phlox outdoors after March 22 in Burke County when soil has warmed and frost danger has passed.
With Burke County's clay soil (30% clay), work in 3-4 inches of compost before planting Phlox. Avoid tilling when soil is wet to prevent compaction.
With summer highs reaching 97°F in Burke County, provide afternoon shade for Phlox and water deeply in the morning.
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 →
Phlox in Other Locations
Frequently Asked Questions
When should I plant Phlox in Burke County, GA?
Burke County is in Zone 8b with an average last frost of March 22. Plan your Phlox planting based on this frost date — see the calendar above for exact timing.
What planting zone is Burke County, GA?
Burke County, Georgia is in USDA Hardiness Zone 8b. The average last spring frost is March 22 and first fall frost is November 8.
When should I plant Phlox in Burke County, GA?
In Burke County, GA, plant Phlox after the last frost (around March 22) and before the first frost (around November 8). Best results when soil holds above 50°F.
What growing zone is Burke County, GA for Phlox?
Burke 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 Burke County's climate?
Yes — Phlox grows well in Burke County's temperate climate. Burke County averages a 231-day frost-free season, with last frost around March 22 and first frost around November 8.
Your Burke County Garden Planner — Free
A 22-page printable planner built for Burke 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.