When to plant Celosia in Applegate, CA
Celosia planted in Applegate between April 1 and April 22 matures in 60–90 days — well before the November 9 first frost.
When to Plant Celosia in Applegate, CA
Your July planting checklist for Placer County, California
July is a pivotal month for Placer County, California gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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Collect celosia at their peak
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
Looking ahead to August
- 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.
Applegate, California is in USDA Zone 9b. The average last spring frost is April 22 and the first fall frost is November 9, giving you a growing season of approximately 201 days.
At an elevation of 651 feet, Placer County receives approximately 25.3 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Celosia during the growing season.
Applegate Soil Profile
Soil Type
Loam
Soil pH
6.6-7.2
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 Applegate
How your county's soil matches Celosia's growing requirements.
Soil pH
Your soil pH (6.6–7.2) overlaps with Celosia's range (6.0–7.0), though not a perfect match.
Soil Texture
The loam soil in Placer County is excellent for Celosia — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Celosia.
Organic Matter
Organic matter is moderate (3.1%). Annual compost additions will help Celosia.
How to Plant Celosia
Succession Planting Celosia
Sow every 6.9 weeks. Last sowing by Aug 11 to harvest before frost.
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 | — | 5.2" | 0" | ❄️ Dormant |
| Feb | — | 5.3" | 0" | ❄️ Dormant |
| Mar | — | 4.2" | 0" | ❄️ Dormant |
| Apr | 2.2" | 1.7" | 0.5" | 💧 Light watering |
| May | 2.2" | 0.7" | 1.5" | 🚿 Regular watering |
| Jun | 2.2" | 0.1" | 2.1" | 🚿 Regular watering |
| Jul | 2.2" | 0" | 2.2" | 🚿 Regular watering |
| Aug | 2.2" | 0" | 2.2" | 🚿 Regular watering |
| Sep | 2.2" | 0.2" | 2" | 🚿 Regular watering |
| Oct | 2.2" | 1.1" | 1.1" | 🚿 Regular watering |
| Nov | 2.2" | 2.4" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Nov in Placer 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 — Applegate, CA
Celosia Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 25 | Mar 25 – Apr 8 |
| Transplant Outdoors | April 1 | Apr 1 – Apr 15 |
| Direct Sow | April 1 | Apr 1 – Apr 22 |
| Bloom | June 3 | Jun 3 – Dec 23 |
Plant 0.1" deep · 9" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | — |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | Bloom |
| December | Bloom |
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: acceptable
🗺️ USDA Zone
Zone 9b
📆 Growing Season
201 days in Placer County
Growing Tips for Celosia in Applegate
Direct sow Celosia outdoors after April 22 in Placer County when soil has warmed and frost danger has passed.
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
When should I plant Celosia in Applegate, CA?
In Applegate, CA, plant Celosia after the last frost (around April 22) and before the first frost (around November 9). Best results when soil holds above 50°F.
What growing zone is Applegate, CA for Celosia?
Applegate sits in USDA Zone 9b. Celosia grows reliably in zones 3a through 11b, so it's a good fit here.
Can Celosia grow in Applegate's climate?
Yes — Celosia grows well in Applegate's temperate climate. Applegate averages a 201-day frost-free season, with last frost around April 22 and first frost around November 9.
Your Placer County Garden Planner — Free
A 22-page printable planner built for Placer County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.