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When to Plant Roses in Smith County, TN

Smith County, Tennessee Zone 7b June

Your June gardening checklist

Each item below is timed to Smith County, Tennessee's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 10
Avg. first frost October 28
Soil temp (4") 66°F
Watering Moderate
Pest pressure High
Daylight 14.5 hrs
  1. Indoor seed-starting week for roses

    You're about 19 weeks out from your last frost — the perfect window to get these germinating indoors.

  2. Start harvesting roses

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

July will be here before you know it — start on
  • First harvests: roses

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Roses (Rosa spp.) are the world's most beloved flowering shrubs, grown for centuries for their exquisite blooms, fragrance, and versatility. Modern repeat-blooming cultivars deliver continuous color from late spring through the first hard frost, while old garden roses typically offer a single magnificent spring flush. Hardy shrub roses such as the Knock Out® and Canadian Explorer series tolerate Zone 3–4 winters without protection. With correct siting (6+ hours of sun, good air circulation), disease- resistant varieties thrive with moderate maintenance.

Smith County, Tennessee is in USDA Zone 7b. The average last spring frost is April 10 and the first fall frost is October 28, giving you a growing season of approximately 201 days.

At an elevation of 3,829 feet, Smith County receives approximately 41.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Roses during the growing season.

Perennial Blooms in Multi-season Pollinator-friendly Good for cutting Fragrant
Smith County, TN (Zone 7b) Long season
201 days
Last Spring Frost April 10
201 growing days
First Fall Frost October 28
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Smith County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-7

Drainage

Well Drained

Roses Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Jan 25 Transplant: Apr 5 🌸 Bloom: Jun 14 – Oct 25
Recommended (50%) ✗ May not fit
Start indoors: Jan 30 Transplant: Apr 10 🌸 Bloom: Jun 19 – Oct 30
Safe Start (90%) ✓ Fits season (0 days to spare)
Start indoors: Feb 10 Transplant: Apr 21 🌸 Bloom: Jun 30 – Nov 10

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 Smith County

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

Soil pH

Your soil pH (5.5–7.0) overlaps with Roses's range (6.0–6.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Roses.

How to Plant Roses

1"
Planting Depth
36"
Between Plants
48"
Between Rows

Roses 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 245 gal / 100 sq ft

Monthly Watering Guide for Roses

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

Month Roses Needs Rainfall You Supplement Action
Jan 3.5" 0" ❄️ Dormant
Feb 3.1" 0" ❄️ Dormant
Mar 4.2" 0" ❄️ Dormant
Apr 4.3" 3" 1.3" 💧 Light watering
May 4.3" 3" 1.3" 💧 Light watering
Jun 4.3" 3.3" 1" 💧 Light watering
Jul 4.3" 4" 0.3" 💧 Light watering
Aug 4.3" 3.8" 0.5" 💧 Light watering
Sep 4.3" 3.3" 1" 💧 Light watering
Oct 4.3" 3" 1.3" 💧 Light watering
Nov 3.7" 0" ❄️ Dormant
Dec 3.4" 0" ❄️ Dormant

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

Roses 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.

Roses needs ~2,768 GDD — county provides 4,120 GDD Excellent fit

Roses Planting Timeline — Smith County, TN

Roses Planting Calendar

Activity When Date Range
Start Indoors January 30 Jan 30 – Feb 13
Transplant Outdoors April 10 Apr 10 – Apr 24
Bloom June 19 Jun 19 – Oct 30

Plant 1" deep · 36" apart · Rows 48" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

90–180 days

🧪 Soil pH

Needs 6–6.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

201 days in Smith County

Growing Tips for Roses in Smith County

Direct sow Roses outdoors after April 10 in Smith County when soil has warmed and frost danger has passed.

General growing tips

Plant bare-root roses in early spring as soon as soil is workable, or set container-grown plants from spring through early fall. Dig a wide, deep hole; amend with compost and a handful of bone meal. Set the graft union 1–2 inches below soil level in Zones 3–6 for winter protection, at soil level in Zones 7+. Water deeply twice weekly until established. Fertilize with a balanced rose food every 4–6 weeks during the growing season. Prune hybrid teas and grandifloras to outward-facing buds in early spring when forsythia blooms. Deadhead to encourage repeat bloom. Fall planting (Zones 5+) can improve establishment in subsequent years. Year 2+ plants deliver the fullest bloom display.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel
  • Brassicas

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Roses in Smith County, TN?

Smith County is in Zone 7b with an average last frost of April 10. Plan your Roses planting based on this frost date — see the calendar above for exact timing.

What planting zone is Smith County, TN?

Smith County, Tennessee is in USDA Hardiness Zone 7b. The average last spring frost is April 10 and first fall frost is October 28.

🌱

Your Smith County Garden Planner — Free

A 22-page printable planner built for Smith 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 Smith County, TN. 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.