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When to plant Ageratum in Pickens County County,

For Pickens County County, gardeners: plant Ageratum March 25 through April 15 once soil reads 50°F.

When to Plant Ageratum in Pickens County, GA

Pickens County, Georgia Zone 8a June

June in the garden — Pickens County, Georgia

Here's what deserves your attention in Pickens County, Georgia this month. Everything below is tailored to Zone 8a and timed around your local frost dates.

Avg. last frost April 1
Avg. first frost November 1
Soil temp (4") 77°F
Watering Low
Pest pressure High
Daylight 14.3 hrs
  1. Basket week: ageratum

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Coming up in July — start thinking about
  • First harvests: ageratum

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Ageratum (Ageratum houstonianum), the floss flower, produces clusters of fluffy, powder-puff blooms in the rare sky-blue and lavender tones difficult to find among warm-season annuals. Compact mounding habit makes it ideal as a front-of-border edging plant. Blooms from early summer through fall with minimal deadheading; heat and humidity tolerant once established.

Pickens County, Georgia is in USDA Zone 8a. The average last spring frost is April 1 and the first fall frost is November 1, giving you a growing season of approximately 214 days.

At an elevation of 365 feet, Pickens County receives approximately 57 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Ageratum during the growing season. Clay soil retains moisture well for Ageratum, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Ageratum root diseases.

Annual Blooms in Multi-season Pollinator-friendly Good for cutting
Pickens County, GA (Zone 8a) Long season
214 days
Last Spring Frost April 1
214 growing days
First Fall Frost November 1

Pickens County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.4

Drainage

Well Drained

Ageratum Planting Risk Windows

Early Start (70% safe) ✓ Fits season (24 days to spare)
Start indoors: Feb 9 Transplant: Mar 16 🌸 Bloom: May 11 – Sep 28
Recommended (50%) ✓ Fits season (25 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🌸 Bloom: May 20 – Oct 7
Safe Start (90%) ✓ Fits season (17 days to spare)
Start indoors: Mar 20 Transplant: Apr 24 🌸 Bloom: Jun 19 – Nov 6

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 Pickens County

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

Soil pH

Your soil pH (5.3–6.4) is more acidic than Ageratum prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Ageratum.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Ageratum.

How to Plant Ageratum

8"
Between Plants
10"
Between Rows

Succession Planting Ageratum

4
successive plantings in your 214-day season

Sow every 6.9 weeks. Last sowing by Aug 18 to harvest before frost.

Ageratum Water Budget

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

Monthly Watering Guide for Ageratum

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

Month Ageratum Needs Rainfall You Supplement Action
Jan 4.4" 0" ❄️ Dormant
Feb 5.3" 0" ❄️ Dormant
Mar 6.1" 0" ❄️ Dormant
Apr 4.3" 5" 0" ✅ Rainfall sufficient
May 4.3" 4.3" 0" ✅ Rainfall sufficient
Jun 4.3" 4.7" 0" ✅ Rainfall sufficient
Jul 4.3" 5.4" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 4.7" 0" ✅ Rainfall sufficient
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 4.3" 4.1" 0.2" 💧 Light watering
Dec 4.3" 0" ❄️ Dormant

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

Ageratum 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.

Ageratum needs ~1,181 GDD — county provides 3,745 GDD Excellent fit

Ageratum Planting Timeline — Pickens County, GA

Ageratum Planting Calendar

Activity When Date Range
Start Indoors February 18 Feb 18 – Mar 4
Transplant Outdoors March 25 Mar 25 – Apr 8
Direct Sow March 25 Mar 25 – Apr 15
Bloom May 20 May 20 – Oct 7

· 8" apart · Rows 10" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

60–75 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

214 days in Pickens County

Growing Tips for Ageratum in Pickens County

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

With Pickens County's clay soil (34% clay), work in 3-4 inches of compost before planting Ageratum. Avoid tilling when soil is wet to prevent compaction.

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

General growing tips

Start seeds indoors 6–8 weeks before last frost — do not cover seed; it needs light to germinate. Can be direct-sown after last frost once soil warms to 60°F. Transplant or thin to proper spacing after frost danger passes. Deadheading isn't strictly required but tidying spent clusters improves appearance. Provide consistent moisture; drought causes premature setting. Avoid deep shade — blooms best in full sun to light afternoon shade.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Ageratum in Pickens County, GA?

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

What planting zone is Pickens County, GA?

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

When should I plant Ageratum in Pickens County, ?

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

What growing zone is Pickens County, for Ageratum?

Pickens County sits in USDA Zone 8a. Ageratum grows reliably in zones 3a through 11b, so it's a good fit here.

Can Ageratum grow in Pickens County's climate?

Yes — Ageratum grows well in Pickens County's temperate climate. Pickens County averages a 214-day frost-free season, with last frost around April 1 and first frost around November 1.

🌱

Your Pickens County Garden Planner — Free

A 22-page printable planner built for Pickens County (Zone 8a). 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 Pickens 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.