When to Plant Celosia in Carson City, NV
June in Carson City, Nevada — your action list
Each item below is timed to Carson City, Nevada's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Start celosia indoors
You're about 17 weeks out from your last frost — the perfect window to get these germinating indoors.
Before July arrives, get these ready
- First harvests: celosia
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.
Carson City, Nevada is in USDA Zone 7a. The average last spring frost is May 12 and the first fall frost is October 10, giving you a growing season of approximately 151 days.
At an elevation of 2,716 feet, Carson City receives approximately 8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98°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. With low rainfall, drip irrigation is essential for growing Celosia successfully. Mulch heavily to conserve soil moisture.
Carson City Soil Profile
Soil Type
Sandy Loam
Soil pH
7.1-8.7
Drainage
Well Drained
Celosia Planting Risk Windows
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 Carson City
How your county's soil matches Celosia's growing requirements.
Soil pH
Your soil pH (7.1–8.7) is more alkaline than Celosia prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
Sandy soil in Carson City warms quickly in spring but drains fast. Celosia will need more frequent watering and regular compost additions to retain nutrients.
Organic Matter
Organic matter is low (0.9%). Add 2-3 inches of compost before planting Celosia.
How to Plant Celosia
Succession Planting Celosia
Sow every 6.9 weeks. Last sowing by Jul 12 to harvest before frost.
Celosia Water Budget
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 | — | 0.5" | 0" | ❄️ Dormant |
| Feb | — | 0.4" | 0" | ❄️ Dormant |
| Mar | — | 0.5" | 0" | ❄️ Dormant |
| Apr | — | 0.3" | 0" | ❄️ Dormant |
| May | 2.2" | 0.2" | 2" | 🚿 Regular watering |
| Jun | 2.2" | 0.3" | 1.9" | 🚿 Regular watering |
| Jul | 2.2" | 1.4" | 0.8" | 💧 Light watering |
| Aug | 2.2" | 1.6" | 0.6" | 💧 Light watering |
| Sep | 2.2" | 1.1" | 1.1" | 🚿 Regular watering |
| Oct | 2.2" | 0.6" | 1.6" | 🚿 Regular watering |
| Nov | — | 0.5" | 0" | ❄️ Dormant |
| Dec | — | 0.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Carson City). 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 Planting Timeline — Carson City, NV
Celosia Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 14 | Apr 14 – Apr 28 |
| Transplant Outdoors | May 12 | May 12 – May 26 |
| Direct Sow | May 12 | May 12 – Jun 2 |
| Bloom | July 14 | Jul 14 – Nov 10 |
Plant 0.1" deep · 9" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow |
| June | Direct Sow |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | Bloom |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · 1-2 times/week
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 7a
📆 Growing Season
151 days in Carson City
Growing Tips for Celosia in Carson City
Direct sow Celosia outdoors after May 12 in Carson City when soil has warmed and frost danger has passed.
Sandy soil in Carson City 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 98°F in Carson City, provide afternoon shade for Celosia and water deeply in the morning.
Carson City receives only 8" 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 →
Celosia in Other Locations
Frequently Asked Questions
When should I plant Celosia in Carson City, NV?
Carson City is in Zone 7a with an average last frost of May 12. Plan your Celosia planting based on this frost date — see the calendar above for exact timing.
What planting zone is Carson City, NV?
Carson City, Nevada is in USDA Hardiness Zone 7a. The average last spring frost is May 12 and first fall frost is October 10.
Your Carson City Garden Planner — Free
A 22-page printable planner built for Carson City (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.