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When to Plant Mulberries in Graham County, NC

Graham County, North Carolina Zone 7b May

This month in Graham County, North Carolina

Here's what deserves your attention in Graham County, North Carolina this month. Everything below is tailored to Zone 7b and timed around your local frost dates.

Avg. last frost April 18
Avg. first frost October 20
Soil temp (4") 63°F
Watering Moderate
Pest pressure Low
Daylight 13.9 hrs
  1. Set out mulberries seedlings

    Pick a cloudy afternoon or evening to plant. Less transplant shock, and your seedlings will barely blink.

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Mulberries are fast-growing, long-lived trees that produce abundant sweet-tart berries over an extended harvest period. The berries resemble elongated blackberries.

Graham County, North Carolina is in USDA Zone 7b. The average last spring frost is April 18 and the first fall frost is October 20, giving you a growing season of approximately 185 days.

At an elevation of 1,058 feet, Graham County receives approximately 49.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Mulberries during the growing season. Clay soil retains moisture well for Mulberries, but amend with compost to improve drainage and prevent root rot.

Graham County, NC (Zone 7b) Moderate season
185 days
Last Spring Frost April 18
185 growing days
First Fall Frost October 20
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Graham County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Apr 30
Recommended (50%) ✓ Fits season
Transplant: May 9
Safe Start (90%) ✓ Fits season
Transplant: May 25

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 Graham County

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

Soil pH

Your soil pH (5.6–6.5) is within Mulberries's preferred range (5.5–7.0).

Soil Texture

The clay loam soil in Graham County is excellent for Mulberries — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Mulberries.

How to Plant Mulberries

120"
Between Plants
144"
Between Rows

Plant Water Budget

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

Monthly Watering Guide for Mulberries

Mulberries needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Mulberries Needs Rainfall You Supplement Action
Jan 4.5" 0" ❄️ Dormant
Feb 3.5" 0" ❄️ Dormant
Mar 4.4" 0" ❄️ Dormant
Apr 4.3" 3.4" 0.9" 💧 Light watering
May 4.3" 3.7" 0.6" 💧 Light watering
Jun 4.3" 5" 0" ✅ Rainfall sufficient
Jul 4.3" 5" 0" ✅ Rainfall sufficient
Aug 4.3" 4.4" 0" ✅ Rainfall sufficient
Sep 4.3" 4.1" 0.2" 💧 Light watering
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 3.3" 0" ❄️ Dormant
Dec 4.6" 0" ❄️ Dormant

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

Mulberries 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.

Mulberries needs ~23,314 GDD — county provides 3,376 GDD May not mature

Mulberries Planting Timeline — Graham County, NC

Mulberries Planting Calendar

Activity When Date Range
Transplant Outdoors May 9 May 9 – May 23

· 120" apart · Rows 144" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Transplant Outdoors
June
July
August
September
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

730–1825 days

🧪 Soil pH

Needs 5.5–7 · Your soil: ideal

🗺️ USDA Zone

Zone 7b

📆 Growing Season

185 days in Graham County

Growing Tips for Mulberries in Graham County

Direct sow Mulberries outdoors after April 18 in Graham County when soil has warmed and frost danger has passed.

With Graham County's clay soil (26% clay), work in 3-4 inches of compost before planting Mulberries. Avoid tilling when soil is wet to prevent compaction.

Your 185.0-day growing season in Graham County is tight for Mulberries (730.0-1825.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant away from driveways and patios as fallen berries stain. Minimal pruning is needed. Harvest by shaking branches over a tarp. Birds love mulberries so plant extra.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Mulberries in Graham County, NC?

Graham County is in Zone 7b with an average last frost of April 18. Plan your Mulberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is Graham County, NC?

Graham County, North Carolina is in USDA Hardiness Zone 7b. The average last spring frost is April 18 and first fall frost is October 20.

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Your Graham County Garden Planner — Free

A 24-page printable planner built for Graham 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 Graham County, NC. Local conditions may vary. Last updated: May 2026.

Sources & credits

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