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When to Plant Mulberries in Lake County, TN

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

Lake County, Tennessee is in USDA Zone 7a. The average last spring frost is March 30 and the first fall frost is October 31, giving you a growing season of approximately 215 days.

At an elevation of 3,977 feet, Lake County receives approximately 46.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89Β°F, providing good warmth for Mulberries during the growing season.

Lake County, TN (Zone 7a) Long season
215 days
Last Spring Frost March 30
215 growing days
First Fall Frost October 31

Lake County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Apr 12
Recommended (50%) ✓ Fits season
Transplant: Apr 20
Safe Start (90%) ✓ Fits season
Transplant: May 7

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 Lake County

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

Soil pH

Your soil pH (5.6–6.8) is within Mulberries's preferred range (5.5–7.0).

Soil Texture

The silt loam soil in Lake County is excellent for Mulberries β€” 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
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 172 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 β€” 4" 0" ❄️ Dormant
Feb β€” 3.6" 0" ❄️ Dormant
Mar 4.3" 4.2" 0.1" πŸ’§ Light watering
Apr 4.3" 3" 1.3" πŸ’§ Light watering
May 4.3" 3.9" 0.4" πŸ’§ Light watering
Jun 4.3" 4" 0.3" πŸ’§ Light watering
Jul 4.3" 5" 0" βœ… Rainfall sufficient
Aug 4.3" 4.8" 0" βœ… Rainfall sufficient
Sep 4.3" 4" 0.3" πŸ’§ Light watering
Oct 4.3" 3" 1.3" πŸ’§ Light watering
Nov β€” 3.3" 0" ❄️ Dormant
Dec β€” 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Oct in Lake County). Supplement amounts are based on average rainfall β€” 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" β€” every day above 50Β°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 3,601 GDD May not mature

Mulberries Planting Timeline β€” Lake County, TN

Mulberries Planting Calendar

Activity When Date Range
Transplant Outdoors April 20 Apr 20 – May 4

Β· 120" apart Β· Rows 144" apart

Month-by-Month Timeline

MonthActivities
January β€”
February β€”
March β€”
April Transplant Outdoors
May Transplant Outdoors
June β€”
July β€”
August β€”
September β€”
October β€”
November β€”
December β€”

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

1"/week Β· Only during dry spells

πŸ“… Days to Maturity

730–1825 days

πŸ§ͺ Soil pH

Needs 5.5–7 Β· Your soil: ideal

πŸ—ΊοΈ USDA Zone

Zone 7a

πŸ“† Growing Season

215 days in Lake County

Growing Tips for Mulberries in Lake County

Direct sow Mulberries outdoors after March 30 in Lake County when soil has warmed and frost danger has passed.

Your 215.0-day growing season in Lake 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 Lake County, TN?

Lake County is in Zone 7a with an average last frost of March 30. Plan your Mulberries planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Lake County, TN?

Lake County, Tennessee is in USDA Hardiness Zone 7a. The average last spring frost is March 30 and first fall frost is October 31.

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Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Lake County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

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