When to Plant Escarole in Butte County, CA
May in the garden — Butte County, California
We've pulled the most time-sensitive tasks for Butte County, California this May and put them front and centre. Tackle them in order.
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Fire up the seed-starting tray: escarole
Your window is short. These crops want several weeks of indoor growth before they go outside.
A few tasks this May that'll pay off in June
- First harvests: escarole
Escarole is a broad-leaved endive with slightly bitter, sturdy leaves. The outer leaves are more bitter while the blanched heart is tender and mild.
Butte County, California is in USDA Zone 9b. The average last spring frost is April 20 and the first fall frost is November 10, giving you a growing season of approximately 204 days.
At an elevation of 144 feet, Butte County receives approximately 44.8 inches of rainfall annually with predominantly loam soil. Summer highs average 90°F, providing good warmth for Escarole during the growing season.
Butte County Soil Profile
Soil Type
Loam
Soil pH
6.8-7.7
Drainage
Well Drained
Plant 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 Butte County
How your county's soil matches Escarole's growing requirements.
Soil pH
Your soil pH (6.8–7.7) is more alkaline than Escarole prefers (5.5–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
The loam soil in Butte County is excellent for Escarole — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Escarole.
Organic Matter
Organic matter is moderate (2.5%). Annual compost additions will help Escarole.
How to Plant Escarole
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Escarole
Sow every 5.7 weeks. Last sowing by Sep 01 to harvest before frost.
For a dedicated fall crop, sow by Sep 15.
Plant Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Escarole
Escarole needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Escarole Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 9.7" | 0" | ❄️ Dormant |
| Feb | — | 9.9" | 0" | ❄️ Dormant |
| Mar | — | 6.9" | 0" | ❄️ Dormant |
| Apr | 4.3" | 3" | 1.3" | 💧 Light watering |
| May | 4.3" | 1.1" | 3.2" | 🚿 Regular watering |
| Jun | 4.3" | 0.2" | 4.1" | 🚿 Regular watering |
| Jul | 4.3" | 0" | 4.3" | 🚿 Regular watering |
| Aug | 4.3" | 0" | 4.3" | 🚿 Regular watering |
| Sep | 4.3" | 0.4" | 3.9" | 🚿 Regular watering |
| Oct | 4.3" | 2.1" | 2.2" | 🚿 Regular watering |
| Nov | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| Dec | — | 7.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Nov in Butte County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Escarole 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.
Escarole Planting Timeline — Butte County, CA
Escarole Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 23 | Mar 23 – Apr 6 |
| Transplant Outdoors | April 20 | Apr 20 – May 4 |
| Direct Sow | March 30 | Mar 30 – Apr 20 |
| Harvest | June 15 | Jun 15 – Jul 13 |
| Fall Sowing | September 15 | Sep 15 – Sep 29 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | Transplant Outdoors |
| June | Harvest |
| July | Harvest |
| August | — |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
1"/week · 1-2 times/week
📅 Days to Maturity
50–70 days
🧪 Soil pH
Needs 5.5–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 9b
📆 Growing Season
204 days in Butte County
Growing Tips for Escarole in Butte County
Direct sow Escarole outdoors after April 20 in Butte County when soil has warmed and frost danger has passed.
Common pests for Escarole in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct sow in spring or late summer. Blanch heads by tying outer leaves together or covering with a pot for 2 weeks before harvest. Excellent braised or in soups.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Escarole in Other Locations
Frequently Asked Questions
When should I plant Escarole in Butte County, CA?
Butte County is in Zone 9b with an average last frost of April 20. Plan your Escarole planting based on this frost date — see the calendar above for exact timing.
What planting zone is Butte County, CA?
Butte County, California is in USDA Hardiness Zone 9b. The average last spring frost is April 20 and first fall frost is November 10.
Your Butte County Garden Planner — Free
A 24-page printable planner built for Butte 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.