When to plant Endive in Jackson, CA
Jackson gardeners should plant Endive between February 15 and March 8 in spring. With Jackson's Zone 9b climate (last frost March 8), Endive needs 45–65 days to mature — plant by September 21 for a full harvest. A second sowing from September 30 to October 14 extends the harvest into fall.
When to Plant Endive in Jackson, CA
July in the garden — Amador County, California
A quick July briefing for Amador County, California gardeners — what's urgent, what's next, and what can wait.
Endive is a leafy green with a slightly bitter flavor, available in curly (frisee) and broad-leaved (escarole) types. It adds texture and complexity to salads.
Jackson, California is in USDA Zone 9b. The average last spring frost is March 8 and the first fall frost is November 25, giving you a growing season of approximately 262 days.
At an elevation of 1,335 feet, Amador County receives approximately 42.7 inches of rainfall annually with predominantly loam soil. Summer highs average 89°F, providing good warmth for Endive during the growing season.
Jackson Soil Profile
Soil Type
Loam
Soil pH
6.7-7.8
Drainage
Well Drained
Endive 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 Jackson
How your county's soil matches Endive's growing requirements.
Soil pH
Your soil pH (6.7–7.8) is more alkaline than Endive prefers (5.5–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
The loam soil in Amador County is excellent for Endive — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.7%). Annual compost additions will help Endive.
How to Plant Endive
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Endive
Sow every 5.1 weeks. Last sowing by Sep 21 to harvest before frost.
For a dedicated fall crop, sow by Sep 30.
Endive Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Endive
Endive needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.
| Month | Endive Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 9.4" | 0" | ❄️ Dormant |
| Feb | — | 8" | 0" | ❄️ Dormant |
| Mar | 3" | 6" | 0" | ✅ Rainfall sufficient |
| Apr | 3" | 3.5" | 0" | ✅ Rainfall sufficient |
| May | 3" | 1" | 2" | 🚿 Regular watering |
| Jun | 3" | 0.2" | 2.8" | 🚿 Regular watering |
| Jul | 3" | 0" | 3" | 🚿 Regular watering |
| Aug | 3" | 0" | 3" | 🚿 Regular watering |
| Sep | 3" | 0.5" | 2.5" | 🚿 Regular watering |
| Oct | 3" | 1.9" | 1.1" | 💧 Light watering |
| Nov | 3" | 4.3" | 0" | ✅ Rainfall sufficient |
| Dec | — | 7.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Amador County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Endive 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.
Endive Planting Timeline — Jackson, CA
Endive Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 8 | Feb 8 – Feb 22 |
| Transplant Outdoors | March 8 | Mar 8 – Mar 22 |
| Direct Sow | February 15 | Feb 15 – Mar 8 |
| Harvest | April 26 | Apr 26 – May 31 |
| Fall Sowing | September 30 | Sep 30 – Oct 14 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors Direct Sow |
| March | Transplant Outdoors Direct Sow |
| April | Harvest |
| May | Harvest |
| June | — |
| July | — |
| August | — |
| September | Fall Sowing |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
0.7"/week · Only during dry spells
📅 Days to Maturity
45–65 days
🧪 Soil pH
Needs 5.5–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 9b
📆 Growing Season
262 days in Amador County
Growing Tips for Endive in Jackson
Direct sow Endive outdoors after March 08 in Amador County when soil has warmed and frost danger has passed.
Your generous 262.0-day season in Amador County allows multiple plantings of Endive. Sow every 22.0 days for continuous harvest.
Common pests for Endive in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
General growing tips
Sow seeds directly in spring or fall. Blanch heads by tying outer leaves together 2-3 weeks before harvest to reduce bitterness. Keep soil evenly moist.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Endive in Other Locations
When should I plant Endive in Jackson, CA?
In Jackson, CA, plant Endive after the last frost (around March 8) and before the first frost (around November 25). Best results when soil holds above 50°F.
What growing zone is Jackson, CA for Endive?
Jackson sits in USDA Zone 9b. Endive grows reliably in zones 3a through 10b, so it's a good fit here.
Can Endive grow in Jackson's climate?
Yes — Endive grows well in Jackson's temperate climate. Jackson averages a 262-day frost-free season, with last frost around March 8 and first frost around November 25.
Your Amador County Garden Planner — Free
A 22-page printable planner built for Amador 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.