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When to Plant Endive in Indian River County, FL

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.

Indian River County, Florida is in USDA Zone 9b. The average last spring frost is January 26 and the first fall frost is December 20, giving you a growing season of approximately 328 days.

At an elevation of 317 feet, Indian River County receives approximately 52.7 inches of rainfall annually with predominantly sand soil. Summer highs average 97ยฐF, so Endive may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Endive will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Endive root diseases.

Indian River County, FL (Zone 9b) Year-round
328 days
Last Spring Frost January 26
328 growing days
First Fall Frost December 20

Indian River County Soil Profile

Soil Type

Sand

Soil pH

5.2-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (242 days to spare)
Start indoors: Dec 22 Transplant: Jan 19 🍅 Harvest: Mar 9 – Apr 13
Recommended (50%) ✓ Fits season (244 days to spare)
Start indoors: Dec 29 Transplant: Jan 26 🍅 Harvest: Mar 16 – Apr 20
Safe Start (90%) ✓ Fits season (225 days to spare)
Start indoors: Jan 21 Transplant: Feb 18 🍅 Harvest: Apr 8 – May 13

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 Indian River County

How your county's soil matches Endive's growing requirements.

Soil pH

Your soil pH (5.2โ€“6.2) overlaps with Endive's range (5.5โ€“7.0), though not a perfect match.

Soil Texture

Sandy soil in Indian River County warms quickly in spring but drains fast. Endive will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.5%). Add 2-3 inches of compost before planting Endive.

How to Plant Endive

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Endive

8
successive plantings in your 328-day season

Sow every 5.1 weeks. Last sowing by Oct 16 to harvest before frost.

For a dedicated fall crop, sow by Oct 25.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.7″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 96 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” 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 3" 2.5" 0.5" ๐Ÿ’ง Light watering
Feb 3" 2.5" 0.5" ๐Ÿ’ง Light watering
Mar 3" 2.8" 0.2" ๐Ÿ’ง Light watering
Apr 3" 2.5" 0.5" ๐Ÿ’ง Light watering
May 3" 3.3" 0" โœ… Rainfall sufficient
Jun 3" 7.8" 0" โœ… Rainfall sufficient
Jul 3" 7.2" 0" โœ… Rainfall sufficient
Aug 3" 8.2" 0" โœ… Rainfall sufficient
Sep 3" 7.2" 0" โœ… Rainfall sufficient
Oct 3" 4.4" 0" โœ… Rainfall sufficient
Nov 3" 2.3" 0.7" ๐Ÿ’ง Light watering
Dec 3" 1.9" 1.1" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Janโ€“Dec in Indian River County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 needs ~1,251 GDD — county provides 7,484 GDD Excellent fit

Endive Planting Timeline โ€” Indian River County, FL

Endive Planting Calendar

Activity When Date Range
Start Indoors December 29 Dec 29 โ€“ Jan 12
Transplant Outdoors January 26 Jan 26 โ€“ Feb 9
Direct Sow January 5 Jan 5 โ€“ Jan 26
Harvest March 16 Mar 16 โ€“ Apr 20
Fall Sowing October 25 Oct 25 โ€“ Nov 8

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

0.7"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

45โ€“65 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 9b

๐Ÿ“† Growing Season

328 days in Indian River County

Growing Tips for Endive in Indian River County

Direct sow Endive outdoors after January 26 in Indian River County when soil has warmed and frost danger has passed.

Sandy soil in Indian River County dries quickly โ€” mulch Endive with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 97ยฐF in Indian River County, provide afternoon shade for Endive and water deeply in the morning.

Your generous 329.0-day season in Indian River 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

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Endive in Indian River County, FL?

Indian River County is in Zone 9b with an average last frost of January 26. Plan your Endive planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Indian River County, FL?

Indian River County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is January 26 and first fall frost is December 20.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Indian River County gardeners in Zone 9b 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 Indian River County, FL. Local conditions may vary. Last updated: April 2026.