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When to plant Coreopsis in Spalding County County,

Spalding County County's spring Coreopsis window runs March 18 through April 8. most warm-season crops establish quickly once soil holds above 60°F.

When to Plant Coreopsis in Spalding County, GA

Spalding County, Georgia Zone 8b June

Your June gardening checklist

Each item below is timed to Spalding County, Georgia's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 1
Avg. first frost November 3
Soil temp (4") 77°F
Watering Low
Pest pressure High
Daylight 14.2 hrs
  1. Basket week: coreopsis

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

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  • 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.

Spalding County, Georgia is in USDA Zone 8b. The average last spring frost is April 1 and the first fall frost is November 3, giving you a growing season of approximately 216 days.

At an elevation of 468 feet, Spalding County receives approximately 51.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°F, providing good warmth for Coreopsis during the growing season. 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
Spalding County, GA (Zone 8b) Long season
216 days
Last Spring Frost April 1
216 growing days
First Fall Frost November 3
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Spalding County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Coreopsis Planting Risk Windows

Early Start (70% safe) ✓ Fits season (9 days to spare)
Start indoors: Jan 26 Transplant: Mar 23 🌸 Bloom: May 25 – Oct 19
Recommended (50%) ✓ Fits season (6 days to spare)
Start indoors: Feb 4 Transplant: Apr 1 🌸 Bloom: Jun 3 – Oct 28
Safe Start (90%) ✓ Fits season (4 days to spare)
Start indoors: Feb 20 Transplant: Apr 17 🌸 Bloom: Jun 19 – Nov 13

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 Spalding County

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

Soil pH

Your soil pH (5.5–6.6) is within Coreopsis's preferred range (5.5–7.5).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). 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 216-day season

Sow every 6.9 weeks. Last sowing by Aug 15 to harvest before frost.

Coreopsis Water Budget

Plant needs
0.5″/week
Rainfall provides
1.0″/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 4.4" 0" ❄️ Dormant
Feb 4.3" 0" ❄️ Dormant
Mar 5.2" 0" ❄️ Dormant
Apr 2.2" 3.7" 0" ✅ Rainfall sufficient
May 2.2" 5" 0" ✅ Rainfall sufficient
Jun 2.2" 4.2" 0" ✅ Rainfall sufficient
Jul 2.2" 4.8" 0" ✅ Rainfall sufficient
Aug 2.2" 5" 0" ✅ Rainfall sufficient
Sep 2.2" 4.3" 0" ✅ Rainfall sufficient
Oct 2.2" 3" 0" ✅ Rainfall sufficient
Nov 2.2" 3.9" 0" ✅ Rainfall sufficient
Dec 3.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Spalding 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 ~1,330 GDD — county provides 4,104 GDD Excellent fit

Coreopsis Planting Timeline — Spalding County, GA

Coreopsis Planting Calendar

Activity When Date Range
Start Indoors February 4 Feb 4 – Feb 18
Transplant Outdoors April 1 Apr 1 – Apr 15
Direct Sow March 18 Mar 18 – Apr 8
Bloom June 3 Jun 3 – Oct 28

Plant 0.1" deep · 18" apart · Rows 24" apart

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 8b

📆 Growing Season

216 days in Spalding County

Growing Tips for Coreopsis in Spalding County

Direct sow Coreopsis outdoors after April 01 in Spalding County when soil has warmed and frost danger has passed.

With Spalding 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.

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 Spalding County, GA?

Spalding County is in Zone 8b with an average last frost of April 1. Plan your Coreopsis planting based on this frost date — see the calendar above for exact timing.

What planting zone is Spalding County, GA?

Spalding County, Georgia is in USDA Hardiness Zone 8b. The average last spring frost is April 1 and first fall frost is November 3.

When should I plant Coreopsis in Spalding County County, ?

In Spalding County County, , plant Coreopsis after the last frost (around April 1) and before the first frost (around November 3). Best results when soil holds above 50°F.

What growing zone is Spalding County County, for Coreopsis?

Spalding County 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 Spalding County County's climate?

Yes — Coreopsis grows well in Spalding County County's temperate climate. Spalding County County averages a 216-day frost-free season, with last frost around April 1 and first frost around November 3.

🌱

Your Spalding County Garden Planner — Free

A 22-page printable planner built for Spalding 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 Spalding 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.