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When to Plant Mulberries in Jackson County, KY

Jackson County, Kentucky Zone 6b May

May to-do list for Jackson County, Kentucky

May is a pivotal month for Jackson County, Kentucky gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost April 17
Avg. first frost October 23
Soil temp (4") 64°F
Watering Low
Pest pressure Low
Daylight 14 hrs
  1. Move mulberries into the garden

    Water the tray well an hour before you transplant. Roots slide out cleanly and settle in faster.

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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.

Jackson County, Kentucky is in USDA Zone 6b. The average last spring frost is April 17 and the first fall frost is October 23, giving you a growing season of approximately 189 days.

At an elevation of 1,120 feet, Jackson County receives approximately 51 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Mulberries during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mulberries root diseases.

Jackson County, KY (Zone 6b) Moderate season
189 days
Last Spring Frost April 17
189 growing days
First Fall Frost October 23
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Jackson County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Apr 30
Recommended (50%) ✓ Fits season
Transplant: May 8
Safe Start (90%) ✓ Fits season
Transplant: May 24

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 Jackson County

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

Soil pH

Your soil pH (5.5–6.6) is within Mulberries's preferred range (5.5–7.0).

Soil Texture

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

Organic Matter

Organic matter is moderate (3.1%). 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 4.3" 0" ❄️ Dormant
Feb 4.4" 0" ❄️ Dormant
Mar 5.2" 0" ❄️ Dormant
Apr 4.3" 3.2" 1.1" 💧 Light watering
May 4.3" 4.2" 0.1" 💧 Light watering
Jun 4.3" 5.1" 0" ✅ Rainfall sufficient
Jul 4.3" 5.6" 0" ✅ Rainfall sufficient
Aug 4.3" 4.4" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 3.2" 1.1" 💧 Light watering
Nov 4.2" 0" ❄️ Dormant
Dec 3.4" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Jackson 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 ~21,398 GDD — county provides 3,165 GDD May not mature

Mulberries Planting Timeline — Jackson County, KY

Mulberries Planting Calendar

Activity When Date Range
Transplant Outdoors May 8 May 8 – May 22

· 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 6b

📆 Growing Season

189 days in Jackson County

Growing Tips for Mulberries in Jackson County

Direct sow Mulberries outdoors after April 17 in Jackson County when soil has warmed and frost danger has passed.

Your 189.0-day growing season in Jackson 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 Jackson County, KY?

Jackson County is in Zone 6b with an average last frost of April 17. Plan your Mulberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is Jackson County, KY?

Jackson County, Kentucky is in USDA Hardiness Zone 6b. The average last spring frost is April 17 and first fall frost is October 23.

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Your Jackson County Garden Planner — Free

A 24-page printable planner built for Jackson 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.

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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 Jackson County, KY. 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.