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When to plant Celosia in Washington County County,

Plant Celosia in Washington County County from February 26 to March 19 in spring. Washington County County sits in USDA Zone 8b, with last frost around March 12 and first frost on November 13.

When to Plant Celosia in Washington County, AL

Washington County, Alabama Zone 8b June

Washington County, Alabama gardeners: here's your June plan

A quick June briefing for Washington County, Alabama gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 12
Avg. first frost November 13
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Pick celosia

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

Get ahead of July
  • First harvests: celosia

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Celosia (Celosia argentea) encompasses the vivid cockscomb (cristata) and feathery plumed (plumosa) types that explode with color in summer heat. Drought-tolerant and disease-resistant, they thrive in the hottest parts of the season and produce long-lasting blooms both in the garden and as cut or dried flowers. A reliable filler in sunny annual beds.

Washington 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 419 feet, Washington County receives approximately 54.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, so Celosia may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Celosia, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celosia root diseases.

Annual Blooms in Summer Pollinator-friendly Good for cutting
Washington County, AL (Zone 8b) Long season
246 days
Last Spring Frost March 12
246 growing days
First Fall Frost November 13
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Washington County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.6

Drainage

Well Drained

Celosia Planting Risk Windows

Early Start (70% safe) ✓ Fits season (37 days to spare)
Start indoors: Feb 3 Transplant: Feb 17 🌸 Bloom: Apr 21 – Sep 29
Recommended (50%) ✓ Fits season (36 days to spare)
Start indoors: Feb 12 Transplant: Feb 26 🌸 Bloom: Apr 30 – Oct 8
Safe Start (90%) ✓ Fits season (32 days to spare)
Start indoors: Mar 7 Transplant: Mar 21 🌸 Bloom: May 23 – Oct 31

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 Washington County

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

Soil pH

Your soil pH (5.3–6.6) is more acidic than Celosia prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

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

How to Plant Celosia

0.1"
Planting Depth
9"
Between Plants
12"
Between Rows

Succession Planting Celosia

4
successive plantings in your 246-day season

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

Celosia Water Budget

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

Monthly Watering Guide for Celosia

Celosia 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 Celosia Needs Rainfall You Supplement Action
Jan 4.3" 0" ❄️ Dormant
Feb 5.1" 0" ❄️ Dormant
Mar 2.2" 5.4" 0" ✅ Rainfall sufficient
Apr 2.2" 3.7" 0" ✅ Rainfall sufficient
May 2.2" 4.8" 0" ✅ Rainfall sufficient
Jun 2.2" 4.5" 0" ✅ Rainfall sufficient
Jul 2.2" 5.1" 0" ✅ Rainfall sufficient
Aug 2.2" 5.4" 0" ✅ Rainfall sufficient
Sep 2.2" 3.6" 0" ✅ Rainfall sufficient
Oct 2.2" 3" 0" ✅ Rainfall sufficient
Nov 2.2" 4.8" 0" ✅ Rainfall sufficient
Dec 5" 0" ❄️ Dormant

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

Celosia 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.

Celosia needs ~1,706 GDD — county provides 5,596 GDD Excellent fit

Celosia Planting Timeline — Washington County, AL

Celosia Planting Calendar

Activity When Date Range
Start Indoors February 12 Feb 12 – Feb 26
Transplant Outdoors February 26 Feb 26 – Mar 12
Direct Sow February 26 Feb 26 – Mar 19
Bloom April 30 Apr 30 – Oct 8

Plant 0.1" deep · 9" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
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 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

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

246 days in Washington County

Growing Tips for Celosia in Washington County

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

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

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

General growing tips

Start seeds indoors 4–6 weeks before last frost, or direct-sow after soil warms above 60°F. Does not transplant well from large pots — sow in small cells or direct-sow. Needs full sun and warm soil; cold stress causes stunting. Pinch first bloom to encourage branching. Water at the base; wet foliage encourages fungal issues. Excellent dried flower — harvest before seeds set for the best color retention.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Celosia in Washington County, AL?

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

What planting zone is Washington County, AL?

Washington 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 Celosia in Washington County County, ?

In Washington County County, , plant Celosia 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 Washington County County, for Celosia?

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

Can Celosia grow in Washington County County's climate?

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

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Your Washington County Garden Planner — Free

A 22-page printable planner built for Washington 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 Washington County, AL. 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.