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When to Plant Shiso in Wise County, VA

Shiso (perilla) is a fragrant Japanese herb with large, ruffled leaves in green or purple varieties. It has a unique flavor combining mint, basil, and anise.

Wise County, Virginia is in USDA Zone 6b. The average last spring frost is April 12 and the first fall frost is October 23, giving you a growing season of approximately 194 days.

At an elevation of 2,328 feet, Wise County receives approximately 41.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91ยฐF, providing good warmth for Shiso during the growing season.

Wise County, VA (Zone 6b) Moderate season
194 days
Last Spring Frost April 12
194 growing days
First Fall Frost October 23

Wise County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (68 days to spare)
Start indoors: Feb 17 Transplant: Apr 21 🍅 Harvest: Jun 16 – Aug 11
Recommended (50%) ✓ Fits season (68 days to spare)
Start indoors: Feb 22 Transplant: Apr 26 🍅 Harvest: Jun 21 – Aug 16
Safe Start (90%) ✓ Fits season (60 days to spare)
Start indoors: Mar 13 Transplant: May 15 🍅 Harvest: Jul 10 – Sep 4

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.

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 160 gal / 100 sq ft
Shiso needs ~1,095 GDD — county provides 3,540 GDD Excellent fit

Shiso Planting Timeline โ€” Wise County, VA

Shiso Planting Calendar

Activity When Date Range
Start Indoors February 22 Feb 22 โ€“ Mar 8
Transplant Outdoors April 26 Apr 26 โ€“ May 10
Direct Sow April 19 Apr 19 โ€“ May 10
Harvest June 21 Jun 21 โ€“ Aug 16

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Start Indoors
April Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Harvest
August Harvest
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

50โ€“70 days

Soil pH

5.5 โ€“ 7

USDA Zone

Zone 6b

Growing Season

194 days

Growing Tips for Wise County

Direct sow after last frost or start indoors. Both green and red varieties are available. Pinch tips to encourage bushiness. Self-sows prolifically; deadhead to control.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Shiso in Wise County, VA?

Wise County is in Zone 6b with an average last frost of April 12. Plan your Shiso planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wise County, VA?

Wise County, Virginia is in USDA Hardiness Zone 6b. The average last spring frost is April 12 and first fall frost is October 23.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Wise County gardeners in Zone 6b organize planting dates, track what's growing, and never miss a planting window.

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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 Wise County, VA. Local conditions may vary. Last updated: April 2026.