Blog

When to plant Ageratum in Patrick Afb, FL

Ageratum planted in Patrick Afb between December 15 and January 5 matures in 60–75 days — well before the December 20 first frost.

When to Plant Ageratum in Patrick Afb, FL

Brevard County, Florida Zone 10a July

July to-do list for Brevard County, Florida

A quick July briefing for Brevard County, Florida gardeners — what's urgent, what's next, and what can wait.

Avg. last frost January 19
Avg. first frost December 20
Soil temp (4") 93°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Harvest ageratum as they ripen

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

August will be here before you know it — start on
  • First harvests: ageratum

Instant PDF download. No spam, unsubscribe any time.

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.

Patrick Afb, Florida is in USDA Zone 10a. The average last spring frost is January 19 and the first fall frost is December 20, giving you a growing season of approximately 335 days.

At an elevation of 491 feet, Brevard County receives approximately 52.7 inches of rainfall annually with predominantly sand soil. Summer highs average 104°F, so Ageratum may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Ageratum will need more frequent watering and organic matter to retain nutrients. 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
Patrick Afb, FL (Zone 10a) Year-round
335 days
Last Spring Frost January 19
335 growing days
First Fall Frost December 20

Patrick Afb Soil Profile

Soil Type

Sand

Soil pH

4.8-5.9

Drainage

Well Drained

Ageratum Planting Risk Windows

Early Start (70% safe) ✓ Fits season (121 days to spare)
Start indoors: Dec 2 Transplant: Dec 9 🌸 Bloom: Feb 3 – Aug 18
Recommended (50%) ✓ Fits season (118 days to spare)
Start indoors: Dec 8 Transplant: Dec 15 🌸 Bloom: Feb 9 – Aug 24
Safe Start (90%) ✓ Fits season (93 days to spare)
Start indoors: Jan 6 Transplant: Jan 13 🌸 Bloom: Mar 10 – Sep 22

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 Patrick Afb

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

Soil pH

Your soil pH (4.8–5.9) is more acidic than Ageratum prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Brevard County warms quickly in spring but drains fast. Ageratum will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Ageratum.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Ageratum.

How to Plant Ageratum

8"
Between Plants
10"
Between Rows

Succession Planting Ageratum

6
successive plantings in your 335-day season

Sow every 6.9 weeks. Last sowing by Oct 06 to harvest before frost.

Ageratum Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 2,301 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 4.3" 2.2" 2.1" 💧 Light watering
Feb 4.3" 3.1" 1.2" 💧 Light watering
Mar 4.3" 3.5" 0.8" 💧 Light watering
Apr 4.3" 2.5" 1.8" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 7.5" 0" ✅ Rainfall sufficient
Jul 4.3" 6.6" 0" ✅ Rainfall sufficient
Aug 4.3" 6.8" 0" ✅ Rainfall sufficient
Sep 4.3" 7.6" 0" ✅ Rainfall sufficient
Oct 4.3" 5" 0" ✅ Rainfall sufficient
Nov 4.3" 1.9" 2.4" 🚿 Regular watering
Dec 4.3" 2.3" 2" 💧 Light watering

Water needs are for active growing months only (Jan–Dec in Brevard 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 ~1,890 GDD — county provides 9,408 GDD Excellent fit

Ageratum Planting Timeline — Patrick Afb, FL

Ageratum Planting Calendar

Activity When Date Range
Start Indoors December 8 Dec 8 – Dec 22
Transplant Outdoors December 15 Dec 15 – Dec 29
Direct Sow December 15 Dec 15 – Jan 5
Bloom February 9 Feb 9 – Aug 24

· 8" apart · Rows 10" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

60–75 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

335 days in Brevard County

Growing Tips for Ageratum in Patrick Afb

Direct sow Ageratum outdoors after January 19 in Brevard County when soil has warmed and frost danger has passed.

Sandy soil in Brevard County dries quickly — mulch Ageratum with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 104°F in Brevard County, provide afternoon shade for Ageratum and water deeply in the morning.

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 →

When should I plant Ageratum in Patrick Afb, FL?

In Patrick Afb, FL, plant Ageratum after the last frost (around January 19) and before the first frost (around December 20). Best results when soil holds above 50°F.

What growing zone is Patrick Afb, FL for Ageratum?

Patrick Afb sits in USDA Zone 10a. Ageratum grows reliably in zones 3a through 11b, so it's a good fit here.

Can Ageratum grow in Patrick Afb's climate?

Yes — Ageratum grows well in Patrick Afb's temperate climate. Patrick Afb averages a 336-day frost-free season, with last frost around January 19 and first frost around December 20.

🌱

Your Brevard County Garden Planner — Free

A 22-page printable planner built for Brevard County (Zone 10a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Brevard County, FL. Local conditions may vary. Last updated: July 2026.