When to Plant Hyssop in Sampson 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.
Sampson County, North Carolina is in USDA Zone 8a. The average last spring frost is March 27 and the first fall frost is November 6, giving you a growing season of approximately 224 days.
At an elevation of 1,127 feet, Sampson County receives approximately 48.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°F, 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.
Sampson County Soil Profile
Soil Type
Clay Loam
Soil pH
5.5-6.3
Drainage
Well Drained
Plant Planting Risk Windows
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
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Hyssop Planting Timeline — Sampson County, NC
Hyssop Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 3 | Apr 3 – Apr 17 |
| Harvest | June 12 | Jun 12 – Aug 14 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Transplant Outdoors |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Low — drought tolerant
Days to Maturity
70–90 days
Soil pH
6 – 8
USDA Zone
Zone 8a
Growing Season
224 days
Growing Tips for Sampson 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
Level Up Your Garden
Hyssop in Other Locations
Frequently Asked Questions
When should I plant Hyssop in Sampson County, NC?
Sampson County is in Zone 8a with an average last frost of March 27. Plan your Hyssop planting based on this frost date — see the calendar above for exact timing.
What planting zone is Sampson County, NC?
Sampson County, North Carolina is in USDA Hardiness Zone 8a. The average last spring frost is March 27 and first fall frost is November 6.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Sampson County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.
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