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When to plant Coreopsis in Burke County, GA

Spring Coreopsis in Burke County goes in March 8–March 29, once nighttime temps stop dipping near freezing.

When to Plant Coreopsis in Burke County, GA

Burke County, Georgia Zone 8b June

Top priorities for Burke County, Georgia gardeners in June

Your Burke County, Georgia garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.

Avg. last frost March 22
Avg. first frost November 8
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 14.2 hrs
  1. It's harvest week for coreopsis

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

Looking ahead to July
  • First harvests: coreopsis

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Coreopsis (Tickseed) is a cheerful, long-blooming native perennial that produces a continuous flush of bright yellow, gold, or bi-colored daisy-like flowers from early summer well into fall. One of the most reliable cut-and-come-again bloomers in the perennial garden, it thrives in hot, dry, sunny conditions and poor soil where many competitors struggle. An invaluable nectar source for native bees and butterflies, and a butterfly host plant for several species.

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 Coreopsis may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Coreopsis, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Coreopsis root diseases.

Perennial Blooms in Summer Pollinator-friendly Deer-resistant Good for cutting
Burke County, GA (Zone 8b) Long season
231 days
Last Spring Frost March 22
231 growing days
First Fall Frost November 8

Burke County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.7

Drainage

Well Drained

Coreopsis Planting Risk Windows

Early Start (70% safe) ✓ Fits season (19 days to spare)
Start indoors: Jan 20 Transplant: Mar 17 🌸 Bloom: May 19 – Oct 13
Recommended (50%) ✓ Fits season (21 days to spare)
Start indoors: Jan 25 Transplant: Mar 22 🌸 Bloom: May 24 – Oct 18
Safe Start (90%) ✓ Fits season (18 days to spare)
Start indoors: Feb 12 Transplant: Apr 9 🌸 Bloom: Jun 11 – Nov 5

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 Coreopsis's growing requirements.

Soil pH

Your soil pH (5.3–6.7) overlaps with Coreopsis's range (5.5–7.5), though not a perfect match.

Soil Texture

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

Drainage

Coreopsis prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Coreopsis.

How to Plant Coreopsis

0.1"
Planting Depth
18"
Between Plants
24"
Between Rows

Succession Planting Coreopsis

4
successive plantings in your 231-day season

Sow every 6.9 weeks. Last sowing by Aug 20 to harvest before frost.

Coreopsis Water Budget

Plant needs
0.5″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Coreopsis

Coreopsis needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Coreopsis Needs Rainfall You Supplement Action
Jan 4.6" 0" ❄️ Dormant
Feb 4.9" 0" ❄️ Dormant
Mar 2.2" 6" 0" ✅ Rainfall sufficient
Apr 2.2" 5.1" 0" ✅ Rainfall sufficient
May 2.2" 5.5" 0" ✅ Rainfall sufficient
Jun 2.2" 5.1" 0" ✅ Rainfall sufficient
Jul 2.2" 5.9" 0" ✅ Rainfall sufficient
Aug 2.2" 5.1" 0" ✅ Rainfall sufficient
Sep 2.2" 4.3" 0" ✅ Rainfall sufficient
Oct 2.2" 4.3" 0" ✅ Rainfall sufficient
Nov 2.2" 4.1" 0" ✅ Rainfall sufficient
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.

Coreopsis 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.

Coreopsis needs ~1,592 GDD — county provides 5,255 GDD Excellent fit

Coreopsis Planting Timeline — Burke County, GA

Coreopsis 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 8 Mar 8 – Mar 29
Bloom May 24 May 24 – Oct 18

Plant 0.1" 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
May Bloom
June Bloom
July Bloom
August Bloom
September Bloom
October Bloom
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

231 days in Burke County

Growing Tips for Coreopsis in Burke County

Direct sow Coreopsis 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 Coreopsis. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97°F in Burke County, provide afternoon shade for Coreopsis and water deeply in the morning.

Common pests for Coreopsis in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 8–10 weeks before last frost or direct sow after last frost. Seeds germinate easily without stratification. Thrives in poor to average, well-drained soil — rich soil promotes foliage over flowers. Drought tolerant once established; overwatering is the most common mistake. Deadhead spent blooms to maintain continuous flowering through the season. Shear plants by one-third in midsummer for a fresh flush of late-season blooms. Year 2+ plants bloom most heavily. Divide every 2–3 years in early spring to rejuvenate crowded clumps.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Coreopsis in Burke County, GA?

Burke County is in Zone 8b with an average last frost of March 22. Plan your Coreopsis 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 Coreopsis in Burke County, GA?

In Burke County, GA, plant Coreopsis 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 Coreopsis?

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

Can Coreopsis grow in Burke County's climate?

Yes — Coreopsis 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.

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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 Burke County, GA. 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.