Blog

When to Plant Borage in New Madrid County, MO

New Madrid County, Missouri Zone 6b April

April in the garden — New Madrid County, Missouri

A quick April briefing for New Madrid County, Missouri gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 30
Avg. first frost November 2
Soil temp (4") 53°F
Watering Low
Pest pressure Low
Daylight 12.9 hrs
To set up a strong May, finish these tasks
  • Starting indoors: borage
  • First harvests: borage

Instant PDF download. No spam, unsubscribe any time.

Borage is a self-seeding annual herb with star-shaped blue flowers that attract pollinators. Its leaves have a cucumber-like flavor and the flowers are edible.

New Madrid County, Missouri is in USDA Zone 6b. The average last spring frost is March 30 and the first fall frost is November 2, giving you a growing season of approximately 217 days.

At an elevation of 881 feet, New Madrid County receives approximately 39.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Borage during the growing season.

New Madrid County, MO (Zone 6b) Long season
217 days
Last Spring Frost March 30
217 growing days
First Fall Frost November 2

New Madrid County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (120 days to spare)
Start indoors: Feb 16 Transplant: Mar 16 🍅 Harvest: May 11 – Jun 29
Recommended (50%) ✓ Fits season (119 days to spare)
Start indoors: Feb 23 Transplant: Mar 23 🍅 Harvest: May 18 – Jul 6
Safe Start (90%) ✓ Fits season (123 days to spare)
Start indoors: Mar 12 Transplant: Apr 9 🍅 Harvest: Jun 4 – Jul 23

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 New Madrid County

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

Soil pH

Your soil pH (5.7–6.8) overlaps with Borage's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.9%). Annual compost additions will help Borage.

How to Plant Borage

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

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

Succession Planting Borage

5
successive plantings in your 217-day season

Sow every 5.7 weeks. Last sowing by Sep 03 to harvest before frost.

For a dedicated fall crop, sow by Aug 24.

Plant Water Budget

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

Monthly Watering Guide for Borage

Borage needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Borage Needs Rainfall You Supplement Action
Jan 1.8" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 2.2" 2.8" 0" ✅ Rainfall sufficient
Apr 2.2" 4.2" 0" ✅ Rainfall sufficient
May 2.2" 4.4" 0" ✅ Rainfall sufficient
Jun 2.2" 4.9" 0" ✅ Rainfall sufficient
Jul 2.2" 4.6" 0" ✅ Rainfall sufficient
Aug 2.2" 4.4" 0" ✅ Rainfall sufficient
Sep 2.2" 3.4" 0" ✅ Rainfall sufficient
Oct 2.2" 2.8" 0" ✅ Rainfall sufficient
Nov 2.2" 2.6" 0" ✅ Rainfall sufficient
Dec 2" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in New Madrid County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Borage 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.

Borage needs ~880 GDD — county provides 3,472 GDD Excellent fit

Borage Planting Timeline — New Madrid County, MO

Borage Planting Calendar

Activity When Date Range
Start Indoors February 23 Feb 23 – Mar 9
Transplant Outdoors March 23 Mar 23 – Apr 6
Direct Sow March 16 Mar 16 – Apr 6
Harvest May 18 May 18 – Jul 6
Fall Sowing August 24 Aug 24 – Sep 7

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors 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

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

50–60 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

217 days in New Madrid County

Growing Tips for Borage in New Madrid County

Direct sow Borage outdoors after March 30 in New Madrid County when soil has warmed and frost danger has passed.

General growing tips

Direct sow in spring as borage does not transplant well. Allow some plants to go to seed for next year. Young leaves are best; older leaves become bristly.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Borage in New Madrid County, MO?

New Madrid County is in Zone 6b with an average last frost of March 30. Plan your Borage planting based on this frost date — see the calendar above for exact timing.

What planting zone is New Madrid County, MO?

New Madrid County, Missouri is in USDA Hardiness Zone 6b. The average last spring frost is March 30 and first fall frost is November 2.

🌱

Your New Madrid County Garden Planner — Free

A 24-page printable planner built for New Madrid County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

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

Sources & credits

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