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When to plant Ageratum in Pike County, AL

In Pike County, plant Ageratum in spring between February 26 and March 19, once soil temps hold above 50°F. Pike County's last frost averages March 12, so most warm-season crops establish quickly once soil holds above 60°F. For a fall crop, sow between and — roughly 60–75 days before the first frost on November 13.

When to Plant Ageratum in Pike County, AL

Pike County, Alabama Zone 8b June

Your June game plan for Pike County, Alabama

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

Avg. last frost March 12
Avg. first frost November 13
Soil temp (4") 83°F
Watering Low
Pest pressure High
Daylight 14.1 hrs
  1. Start harvesting ageratum

    If you can't use it all right away, check the food-preservation section of your planner.

Before July arrives, get these ready
  • 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.

Pike County, Alabama is in USDA Zone 8b. The average last spring frost is March 12 and the first fall frost is November 13, giving you a growing season of approximately 246 days.

At an elevation of 90 feet, Pike County receives approximately 61.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95°F, so Ageratum may need afternoon shade and extra watering during peak heat. 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
Pike County, AL (Zone 8b) Long season
246 days
Last Spring Frost March 12
246 growing days
First Fall Frost November 13

Pike County Soil Profile

Soil Type

Clay Loam

Soil pH

5.8-6.3

Drainage

Well Drained

Ageratum Planting Risk Windows

Early Start (70% safe) ✓ Fits season (49 days to spare)
Start indoors: Jan 23 Transplant: Feb 20 🌸 Bloom: Apr 17 – Sep 18
Recommended (50%) ✓ Fits season (50 days to spare)
Start indoors: Jan 29 Transplant: Feb 26 🌸 Bloom: Apr 23 – Sep 24
Safe Start (90%) ✓ Fits season (47 days to spare)
Start indoors: Feb 18 Transplant: Mar 18 🌸 Bloom: May 13 – Oct 14

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 Pike County

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

Soil pH

Your soil pH (5.8–6.3) overlaps with Ageratum's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

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

How to Plant Ageratum

8"
Between Plants
10"
Between Rows

Succession Planting Ageratum

4
successive plantings in your 246-day season

Sow every 6.9 weeks. Last sowing by Aug 30 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 5.8" 0" ❄️ Dormant
Feb 4.8" 0" ❄️ Dormant
Mar 4.3" 6.6" 0" ✅ Rainfall sufficient
Apr 4.3" 4.2" 0.1" 💧 Light watering
May 4.3" 4.8" 0" ✅ Rainfall sufficient
Jun 4.3" 5.7" 0" ✅ Rainfall sufficient
Jul 4.3" 6.5" 0" ✅ Rainfall sufficient
Aug 4.3" 5.3" 0" ✅ Rainfall sufficient
Sep 4.3" 4.5" 0" ✅ Rainfall sufficient
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 4.3" 5" 0" ✅ Rainfall sufficient
Dec 4.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Pike 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 ~1,434 GDD — county provides 5,227 GDD Excellent fit

Ageratum Planting Timeline — Pike County, AL

Ageratum Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 – Feb 12
Transplant Outdoors February 26 Feb 26 – Mar 12
Direct Sow February 26 Feb 26 – Mar 19
Bloom April 23 Apr 23 – Sep 24

· 8" apart · Rows 10" apart

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 8b

📆 Growing Season

246 days in Pike County

Growing Tips for Ageratum in Pike County

Direct sow Ageratum outdoors after March 12 in Pike County when soil has warmed and frost danger has passed.

With Pike County's clay soil (30% 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 Pike County, AL?

Pike County is in Zone 8b with an average last frost of March 12. Plan your Ageratum planting based on this frost date — see the calendar above for exact timing.

What planting zone is Pike County, AL?

Pike County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 12 and first fall frost is November 13.

When should I plant Ageratum in Pike County, AL?

In Pike County, AL, plant Ageratum after the last frost (around March 12) and before the first frost (around November 13). Best results when soil holds above 50°F.

What growing zone is Pike County, AL for Ageratum?

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

Can Ageratum grow in Pike County's climate?

Yes — Ageratum grows well in Pike County's temperate climate. Pike County averages a 246-day frost-free season, with last frost around March 12 and first frost around November 13.

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

Sources & credits

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