When to plant Celosia in Owyhee County, ID
Plant Celosia in Owyhee County during the brief June 9–June 30 window. With 103 frost-free days, fall plantings can't mature before September 20.
When to Plant Celosia in Owyhee County, ID
June in the garden — Owyhee County, Idaho
If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.
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Move celosia into the garden
Your last frost (June 9) has passed. These warm-season crops can handle outdoor soil now.
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Scatter celosia into prepared beds
Sow every 2 weeks for a continuous harvest. A single big planting means a single big glut.
July will be here before you know it — start on
- Starting indoors: 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.
Owyhee County, Idaho is in USDA Zone 7a. The average last spring frost is June 9 and the first fall frost is September 20, giving you a growing season of approximately 103 days.
At an elevation of 4,621 feet, Owyhee County receives approximately 18.1 inches of rainfall annually with predominantly loam soil. Summer highs average 90°F, providing good warmth for Celosia during the growing season. With low rainfall, drip irrigation is essential for growing Celosia successfully. Mulch heavily to conserve soil moisture.
Owyhee County Soil Profile
Soil Type
Loam
Soil pH
6.3-7.8
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 Owyhee County
How your county's soil matches Celosia's growing requirements.
Soil pH
Your soil pH (6.3–7.8) is more alkaline than Celosia prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
The loam soil in Owyhee County is excellent for Celosia — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.7%). Annual compost additions will help Celosia.
How to Plant Celosia
Celosia Water Budget
Water stress score is 8/10 — 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 | — | 1.1" | 0" | ❄️ Dormant |
| Feb | — | 1.1" | 0" | ❄️ Dormant |
| Mar | — | 1.7" | 0" | ❄️ Dormant |
| Apr | — | 2" | 0" | ❄️ Dormant |
| May | — | 2.3" | 0" | ❄️ Dormant |
| Jun | 2.2" | 1.4" | 0.8" | 💧 Light watering |
| Jul | 2.2" | 1.8" | 0.4" | 💧 Light watering |
| Aug | 2.2" | 1.7" | 0.5" | 💧 Light watering |
| Sep | 2.2" | 1.3" | 0.9" | 💧 Light watering |
| Oct | — | 1.6" | 0" | ❄️ Dormant |
| Nov | — | 1.2" | 0" | ❄️ Dormant |
| Dec | — | 1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Jun–Sep in Owyhee 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 Planting Timeline — Owyhee County, ID
Celosia Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | May 12 | May 12 – May 26 |
| Transplant Outdoors | June 9 | Jun 9 – Jun 23 |
| Direct Sow | June 9 | Jun 9 – Jun 30 |
| Bloom | August 11 | Aug 11 – Dec 8 |
Plant 0.1" deep · 9" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Start Indoors |
| June | Transplant Outdoors Direct Sow |
| July | — |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | Bloom |
| December | Bloom |
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_alkaline
🗺️ USDA Zone
Zone 7a
📆 Growing Season
103 days in Owyhee County
Growing Tips for Celosia in Owyhee County
Direct sow Celosia outdoors after June 09 in Owyhee County when soil has warmed and frost danger has passed.
Your 103.0-day growing season in Owyhee County is tight for Celosia (60.0-90.0 days to maturity). Start indoors and choose early-maturing varieties.
Owyhee County receives only 18" 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 Owyhee County, ID?
Owyhee County is in Zone 7a with an average last frost of June 9. Plan your Celosia planting based on this frost date — see the calendar above for exact timing.
What planting zone is Owyhee County, ID?
Owyhee County, Idaho is in USDA Hardiness Zone 7a. The average last spring frost is June 9 and first fall frost is September 20.
When should I plant Celosia in Owyhee County, ID?
In Owyhee County, ID, plant Celosia after the last frost (around June 9) and before the first frost (around September 20). Best results when soil holds above 50°F.
What growing zone is Owyhee County, ID for Celosia?
Owyhee County sits in USDA Zone 7a. Celosia grows reliably in zones 3a through 11b, so it's a good fit here.
Can Celosia grow in Owyhee County's climate?
Yes — Celosia grows well in Owyhee County's temperate climate. Owyhee County averages a 103-day frost-free season, with last frost around June 9 and first frost around September 20.
Your Owyhee County Garden Planner — Free
A 22-page printable planner built for Owyhee County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.