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When to Plant Celosia in Elko County, NV

Elko County, Nevada Zone 5b June

June to-do list for Elko County, Nevada

Here's what deserves your attention in Elko County, Nevada this month. Everything below is tailored to Zone 5b and timed around your local frost dates.

Avg. last frost June 5
Avg. first frost September 15
Soil temp (4") 51°F
Watering Critical
Pest pressure High
Daylight 14.9 hrs
  1. Harden off and plant celosia

    Bring a watering can to the bed. Each transplant gets a drink the moment it's in the ground, not ten minutes later.

  2. Direct-sow celosia

    Rake a smooth bed, make a shallow furrow, drop seeds at the spacing on the packet, water gently, walk away.

Get ahead of July
  • Starting indoors: 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.

Elko County, Nevada is in USDA Zone 5b. The average last spring frost is June 5 and the first fall frost is September 15, giving you a growing season of approximately 102 days.

At an elevation of 5,859 feet, Elko County receives approximately 15.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 92°F, providing good warmth for Celosia during the growing season. Sandy soil warms quickly in spring — great for early planting — but Celosia will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Celosia successfully. Mulch heavily to conserve soil moisture.

Annual Blooms in Summer Pollinator-friendly Good for cutting
Elko County, NV (Zone 5b) Short season
102 days
Last Spring Frost June 5
102 growing days
First Fall Frost September 15

Elko County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.5

Drainage

Well Drained

Celosia Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Apr 21 Transplant: Jun 2 🌸 Bloom: Aug 4 – Nov 10
Recommended (50%) ✗ May not fit
Start indoors: May 1 Transplant: Jun 12 🌸 Bloom: Aug 14 – Nov 20
Safe Start (90%) ✗ May not fit
Start indoors: May 14 Transplant: Jun 25 🌸 Bloom: Aug 27 – Dec 3

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 Elko County

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

Soil pH

Your soil pH (7.2–8.5) is more alkaline than Celosia prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Elko 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 low (0.8%). Add 2-3 inches of compost before planting Celosia.

How to Plant Celosia

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

Celosia Water Budget

Plant needs
0.5″/week
Rainfall provides
0.6″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 31 gal / 100 sq ft
Drought risk

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

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" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 0.9" 0" ❄️ Dormant
Apr 0.5" 0" ❄️ Dormant
May 0.3" 0" ❄️ Dormant
Jun 2.2" 0.4" 1.8" 🚿 Regular watering
Jul 2.2" 2.7" 0" ✅ Rainfall sufficient
Aug 2.2" 3.1" 0" ✅ Rainfall sufficient
Sep 2.2" 2" 0.2" 💧 Light watering
Oct 1.5" 0" ❄️ Dormant
Nov 0.7" 0" ❄️ Dormant
Dec 1.1" 0" ❄️ Dormant

Water needs are for active growing months only (Jun–Sep in Elko 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 ~1,425 GDD — county provides 1,938 GDD Excellent fit

Celosia Planting Timeline — Elko County, NV

Celosia Planting Calendar

Activity When Date Range
Start Indoors May 1 May 1 – May 15
Transplant Outdoors June 12 Jun 12 – Jun 26
Direct Sow June 12 Jun 12 – Jul 3
Bloom August 14 Aug 14 – Nov 20

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Only during dry spells

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 5b

📆 Growing Season

102 days in Elko County

Growing Tips for Celosia in Elko County

Direct sow Celosia outdoors after June 05 in Elko County when soil has warmed and frost danger has passed.

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

Your 102.0-day growing season in Elko County is tight for Celosia (60.0-90.0 days to maturity). Start indoors and choose early-maturing varieties.

Elko County receives only 15" of rain annually. Celosia needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

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 Elko County, NV?

Elko County is in Zone 5b with an average last frost of June 5. Plan your Celosia planting based on this frost date — see the calendar above for exact timing.

What planting zone is Elko County, NV?

Elko County, Nevada is in USDA Hardiness Zone 5b. The average last spring frost is June 5 and first fall frost is September 15.

🌱

Your Elko County Garden Planner — Free

A 22-page printable planner built for Elko County (Zone 5b). 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 Elko County, NV. 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.