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When to Plant Celosia in Gregg County, TX

Gregg County, Texas Zone 8b June

What to do in June

June is a pivotal month for Gregg County, Texas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 9
Avg. first frost November 17
Soil temp (4") 84°F
Watering Low
Pest pressure High
Daylight 14.1 hrs
  1. Start harvesting celosia

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

July prep starts now
  • 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.

Gregg County, Texas is in USDA Zone 8b. The average last spring frost is March 9 and the first fall frost is November 17, giving you a growing season of approximately 253 days.

At an elevation of 337 feet, Gregg County receives approximately 74.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Celosia may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Celosia will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celosia root diseases.

Annual Blooms in Summer Pollinator-friendly Good for cutting
Gregg County, TX (Zone 8b) Long season
253 days
Last Spring Frost March 9
253 growing days
First Fall Frost November 17
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Gregg County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.5-6.3

Drainage

Well Drained

Celosia Planting Risk Windows

Early Start (70% safe) ✓ Fits season (48 days to spare)
Start indoors: Jan 31 Transplant: Feb 14 🌸 Bloom: Apr 18 – Sep 26
Recommended (50%) ✓ Fits season (43 days to spare)
Start indoors: Feb 9 Transplant: Feb 23 🌸 Bloom: Apr 27 – Oct 5
Safe Start (90%) ✓ Fits season (37 days to spare)
Start indoors: Mar 1 Transplant: Mar 15 🌸 Bloom: May 17 – Oct 25

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 Gregg County

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

Soil pH

Your soil pH (5.5–6.3) is more acidic than Celosia prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Celosia.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Celosia.

How to Plant Celosia

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

Succession Planting Celosia

5
successive plantings in your 253-day season

Sow every 6.9 weeks. Last sowing by Aug 19 to harvest before frost.

Celosia Water Budget

Plant needs
0.5″/week
Rainfall provides
1.2″/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 1.9" 0" ❄️ Dormant
Feb 2.8" 0" ❄️ Dormant
Mar 2.2" 4.8" 0" ✅ Rainfall sufficient
Apr 2.2" 6.7" 0" ✅ Rainfall sufficient
May 2.2" 11.1" 0" ✅ Rainfall sufficient
Jun 2.2" 13" 0" ✅ Rainfall sufficient
Jul 2.2" 9.4" 0" ✅ Rainfall sufficient
Aug 2.2" 8.8" 0" ✅ Rainfall sufficient
Sep 2.2" 6.7" 0" ✅ Rainfall sufficient
Oct 2.2" 4.6" 0" ✅ Rainfall sufficient
Nov 2.2" 2.8" 0" ✅ Rainfall sufficient
Dec 1.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Gregg 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 ~1,650 GDD — county provides 5,566 GDD Excellent fit

Celosia Planting Timeline — Gregg County, TX

Celosia Planting Calendar

Activity When Date Range
Start Indoors February 9 Feb 9 – Feb 23
Transplant Outdoors February 23 Feb 23 – Mar 9
Direct Sow February 23 Feb 23 – Mar 16
Bloom April 27 Apr 27 – Oct 5

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

253 days in Gregg County

Growing Tips for Celosia in Gregg County

Direct sow Celosia outdoors after March 09 in Gregg County when soil has warmed and frost danger has passed.

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

With summer highs reaching 96°F in Gregg 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 Gregg County, TX?

Gregg County is in Zone 8b with an average last frost of March 9. Plan your Celosia planting based on this frost date — see the calendar above for exact timing.

What planting zone is Gregg County, TX?

Gregg County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 9 and first fall frost is November 17.

🌱

Your Gregg County Garden Planner — Free

A 22-page printable planner built for Gregg 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 Gregg County, TX. 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.