Blog

When to Plant Hyssop in Craven County, NC

Hyssop is a semi-evergreen perennial herb with intense blue flower spikes that attract bees and butterflies. It has a minty, slightly bitter flavor used in liqueurs and teas.

Craven County, North Carolina is in USDA Zone 8a. The average last spring frost is March 23 and the first fall frost is November 10, giving you a growing season of approximately 232 days.

At an elevation of 976 feet, Craven County receives approximately 49.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93ยฐF, providing good warmth for Hyssop during the growing season. Clay soil retains moisture well for Hyssop, but amend with compost to improve drainage and prevent root rot.

Craven County, NC (Zone 8a) Long season
232 days
Last Spring Frost March 23
232 growing days
First Fall Frost November 10

Craven County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (96 days to spare)
Transplant: Mar 21 🍅 Harvest: May 30 – Aug 1
Recommended (50%) ✓ Fits season (92 days to spare)
Transplant: Mar 30 🍅 Harvest: Jun 8 – Aug 10
Safe Start (90%) ✓ Fits season (92 days to spare)
Transplant: Apr 16 🍅 Harvest: Jun 25 – Aug 27

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
0.5″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Hyssop needs ~1,580 GDD — county provides 4,582 GDD Excellent fit

Hyssop Planting Timeline โ€” Craven County, NC

Hyssop Planting Calendar

Activity When Date Range
Transplant Outdoors March 30 Mar 30 โ€“ Apr 13
Harvest June 8 Jun 8 โ€“ Aug 10

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

70โ€“90 days

Soil pH

6 โ€“ 8

USDA Zone

Zone 8a

Growing Season

232 days

Growing Tips for Craven County

Start seeds indoors or direct sow in spring. Prune back in early spring to encourage bushy growth. Hyssop is drought-tolerant once established and thrives in poor soil.

Companion Planting

Good Companions

Avoid Planting Near

  • Radish

Level Up Your Garden

Frequently Asked Questions

When should I plant Hyssop in Craven County, NC?

Craven County is in Zone 8a with an average last frost of March 23. Plan your Hyssop planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Craven County, NC?

Craven County, North Carolina is in USDA Hardiness Zone 8a. The average last spring frost is March 23 and first fall frost is November 10.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Craven County gardeners in Zone 8a 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 Craven County, NC. Local conditions may vary. Last updated: April 2026.