When to Plant Hyssop in Reynolds County, MO
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.
Reynolds County, Missouri is in USDA Zone 6b. The average last spring frost is April 10 and the first fall frost is October 24, giving you a growing season of approximately 197 days.
At an elevation of 634 feet, Reynolds County receives approximately 34.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Hyssop during the growing season.
Reynolds County Soil Profile
Soil Type
Silt Loam
Soil pH
5.5-6.7
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
Hyssop Planting Timeline — Reynolds County, MO
Hyssop Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 17 | Apr 17 – May 1 |
| Harvest | June 26 | Jun 26 – Aug 28 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Transplant Outdoors |
| May | Transplant Outdoors |
| 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 6b
Growing Season
197 days
Growing Tips for Reynolds 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 Reynolds County, MO?
Reynolds County is in Zone 6b with an average last frost of April 10. Plan your Hyssop planting based on this frost date — see the calendar above for exact timing.
What planting zone is Reynolds County, MO?
Reynolds County, Missouri is in USDA Hardiness Zone 6b. The average last spring frost is April 10 and first fall frost is October 24.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Reynolds County gardeners in Zone 6b organize planting dates, track what's growing, and never miss a planting window.
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