When to plant blueberries in USDA Zone 6b

Plan your blueberries planting around local frost risk and soil temperature, then work backward from the harvest week your buyers need. The calendar below is a starting point, not a field-level weather forecast.

Boone NC, northern VA, central KY, southern IN. Average last spring frost April 24, first fall frost October 8 — a 167-day frost-free season.

Zone fit: challenging
Blueberries needs a long season and this zone averages just 167 frost-free days. Start early, use black plastic, and plan for row cover on shoulder-season frosts.

Key dates

Transplant outdoors
October 2 – October 23
Expected first harvest
October 8 – November 5
Fall planting window
August 20 – September 10
Fall harvest window
August 26 – September 23

Windows are calculated from your zone's average frost dates. Adjust ±1 week for microclimates, elevation, and your own frost records.

Spacing and soil

Plant spacing
60″
Row spacing
120″
Seed depth
6″
Soil temperature
50–80°F
Frost tolerance
hardy
Days to harvest
730 days

Grower notes for Zone 6b

Rabbiteye varieties fit Zones 7–9; southern highbush for Zones 8–10. Soil pH 4.5–5.2 is non-negotiable — amend with elemental sulfur.

Plant near: azaleas, rhododendrons

Other berries for Zone 6b

Same crop, other zones

Track your own plantings

BAU Farm Intelligence turns these windows into per-field tasks — indoor seed-start reminders, transplant dates, harvest projections — using your farm's actual frost history.