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When to plant Endive in Howard County, MD

Plant Endive in Howard County, when soil hits 50°F — usually March 25. Continue planting through April 15 for the spring crop. A second sowing from August 23 to September 6 extends the harvest into fall.

When to Plant Endive in Howard County, MD

Howard County, Maryland Zone 7b June

What to do in June

A quick June briefing for Howard County, Maryland gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 8
Avg. first frost November 1
Soil temp (4") 79°F
Watering Low
Pest pressure High
Daylight 14.7 hrs
  1. Bring in the endive

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

Get ahead of July
  • First harvests: endive

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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.

Howard County, Maryland is in USDA Zone 7b. The average last spring frost is April 8 and the first fall frost is November 1, giving you a growing season of approximately 207 days.

At an elevation of 753 feet, Howard County receives approximately 48.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Endive during the growing season.

Howard County, MD (Zone 7b) Long season
207 days
Last Spring Frost April 8
207 growing days
First Fall Frost November 1

Howard County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-7

Drainage

Well Drained

Endive Planting Risk Windows

Early Start (70% safe) ✓ Fits season (121 days to spare)
Start indoors: Feb 24 Transplant: Mar 31 🍅 Harvest: May 19 – Jun 23
Recommended (50%) ✓ Fits season (123 days to spare)
Start indoors: Mar 4 Transplant: Apr 8 🍅 Harvest: May 27 – Jul 1
Safe Start (90%) ✓ Fits season (124 days to spare)
Start indoors: Mar 21 Transplant: Apr 25 🍅 Harvest: Jun 13 – Jul 18

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 Howard County

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

Soil pH

Your soil pH (5.6–7.0) is within Endive's preferred range (5.5–7.0).

Soil Texture

The silt loam soil in Howard County is excellent for Endive — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Endive.

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Endive.

How to Plant Endive

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Endive

5
successive plantings in your 207-day season

Sow every 5.1 weeks. Last sowing by Aug 28 to harvest before frost.

For a dedicated fall crop, sow by Aug 23.

Endive Water Budget

Plant needs
0.7″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 3.6" 0" ❄️ Dormant
Feb 3.4" 0" ❄️ Dormant
Mar 4" 0" ❄️ Dormant
Apr 3" 4.7" 0" ✅ Rainfall sufficient
May 3" 3.8" 0" ✅ Rainfall sufficient
Jun 3" 5" 0" ✅ Rainfall sufficient
Jul 3" 4.9" 0" ✅ Rainfall sufficient
Aug 3" 3.8" 0" ✅ Rainfall sufficient
Sep 3" 3.9" 0" ✅ Rainfall sufficient
Oct 3" 3.9" 0" ✅ Rainfall sufficient
Nov 3" 3.5" 0" ✅ Rainfall sufficient
Dec 3.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Howard 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 needs ~1,004 GDD — county provides 3,777 GDD Excellent fit

Endive Planting Timeline — Howard County, MD

Endive Planting Calendar

Activity When Date Range
Start Indoors March 4 Mar 4 – Mar 18
Transplant Outdoors April 8 Apr 8 – Apr 22
Direct Sow March 25 Mar 25 – Apr 15
Harvest May 27 May 27 – Jul 1
Fall Sowing August 23 Aug 23 – Sep 6

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · Natural rainfall sufficient

📅 Days to Maturity

45–65 days

🧪 Soil pH

Needs 5.5–7 · Your soil: ideal

🗺️ USDA Zone

Zone 7b

📆 Growing Season

207 days in Howard County

Growing Tips for Endive in Howard County

Direct sow Endive outdoors after April 08 in Howard County when soil has warmed and frost danger has passed.

Your generous 207.0-day season in Howard 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 Howard County, MD?

Howard County is in Zone 7b with an average last frost of April 8. Plan your Endive planting based on this frost date — see the calendar above for exact timing.

What planting zone is Howard County, MD?

Howard County, Maryland is in USDA Hardiness Zone 7b. The average last spring frost is April 8 and first fall frost is November 1.

When should I plant Endive in Howard County, MD?

In Howard County, MD, plant Endive after the last frost (around April 8) and before the first frost (around November 1). Best results when soil holds above 50°F.

What growing zone is Howard County, MD for Endive?

Howard County sits in USDA Zone 7b. Endive grows reliably in zones 3a through 10b, so it's a good fit here.

Can Endive grow in Howard County's climate?

Yes — Endive grows well in Howard County's temperate climate. Howard County averages a 207-day frost-free season, with last frost around April 8 and first frost around November 1.

🌱

Your Howard County Garden Planner — Free

A 22-page printable planner built for Howard County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Howard County, MD. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.