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When to Plant Endive in Pocahontas County, IA

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.

Pocahontas County, Iowa is in USDA Zone 4b. The average last spring frost is April 25 and the first fall frost is October 10, giving you a growing season of approximately 168 days.

At an elevation of 787 feet, Pocahontas County receives approximately 30.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83ยฐF, so choose short-season varieties of Endive to ensure they mature before fall.

Pocahontas County, IA (Zone 4b) Moderate season
168 days
Last Spring Frost April 25
168 growing days
First Fall Frost October 10

Pocahontas County Soil Profile

Soil Type

Silt Loam

Soil pH

6.1-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (82 days to spare)
Start indoors: Mar 9 Transplant: Apr 20 🍅 Harvest: Jun 8 – Jul 13
Recommended (50%) ✓ Fits season (84 days to spare)
Start indoors: Mar 14 Transplant: Apr 25 🍅 Harvest: Jun 13 – Jul 18
Safe Start (90%) ✓ Fits season (84 days to spare)
Start indoors: Mar 30 Transplant: May 11 🍅 Harvest: Jun 29 – Aug 3

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 366 gal / 100 sq ft
Endive needs ~674 GDD — county provides 2,058 GDD Excellent fit

Endive Planting Timeline โ€” Pocahontas County, IA

Endive Planting Calendar

Activity When Date Range
Start Indoors March 14 Mar 14 โ€“ Mar 28
Transplant Outdoors April 25 Apr 25 โ€“ May 9
Direct Sow April 18 Apr 18 โ€“ May 9
Fall Sowing July 18 Jul 18 โ€“ Aug 1
Harvest June 13 Jun 13 โ€“ Jul 18

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors
April Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Fall Sowing Harvest
August Fall Sowing
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

45โ€“65 days

Soil pH

5.5 โ€“ 7

USDA Zone

Zone 4b

Growing Season

168 days

Growing Tips for Pocahontas County

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

  • Fennel

Level Up Your Garden

Frequently Asked Questions

When should I plant Endive in Pocahontas County, IA?

Pocahontas County is in Zone 4b with an average last frost of April 25. Plan your Endive planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Pocahontas County, IA?

Pocahontas County, Iowa is in USDA Hardiness Zone 4b. The average last spring frost is April 25 and first fall frost is October 10.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Pocahontas County gardeners in Zone 4b organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Pocahontas County, IA. Local conditions may vary. Last updated: April 2026.