When to plant Borage in Grant County, IN
Grant County gardeners should plant Borage between April 11 and May 2 in spring. With Grant County's Zone 6a climate (last frost April 25), Borage needs 50–60 days to mature — plant by August 18 for a full harvest. A second sowing from August 8 to August 22 extends the harvest into fall.
When to Plant Borage in Grant County, IN
Borage is a self-seeding annual herb with star-shaped blue flowers that attract pollinators. Its leaves have a cucumber-like flavor and the flowers are edible.
Grant County, Indiana is in USDA Zone 6a. The average last spring frost is April 25 and the first fall frost is October 17, giving you a growing season of approximately 175 days.
At an elevation of 682 feet, Grant County receives approximately 40.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Borage during the growing season.
Grant County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Borage Planting Timeline — Grant County, IN
Borage Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 21 | Mar 21 – Apr 4 |
| Transplant Outdoors | April 18 | Apr 18 – May 2 |
| Direct Sow | April 11 | Apr 11 – May 2 |
| Harvest | June 13 | Jun 13 – Aug 1 |
| Fall Sowing | August 8 | Aug 8 – Aug 22 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
50–60 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 6a
📆 Growing Season
175 days in Grant County
Growing Tips for Grant County
Direct sow in spring as borage does not transplant well. Allow some plants to go to seed for next year. Young leaves are best; older leaves become bristly.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Borage in Other Locations
Frequently Asked Questions
When should I plant Borage in Grant County, IN?
Grant County is in Zone 6a with an average last frost of April 25. Plan your Borage planting based on this frost date — see the calendar above for exact timing.
What planting zone is Grant County, IN?
Grant County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 25 and first fall frost is October 17.
When should I plant Borage in Grant County, IN?
In Grant County, IN, plant Borage after the last frost (around April 25) and before the first frost (around October 17). Best results when soil holds above 50°F.
What growing zone is Grant County, IN for Borage?
Grant County sits in USDA Zone 6a. Borage grows reliably in zones 3a through 11b, so it's a good fit here.
Can Borage grow in Grant County's climate?
Yes — Borage grows well in Grant County's temperate climate. Grant County averages a 175-day frost-free season, with last frost around April 25 and first frost around October 17.
Your Grant County Garden Planner — Free
A 22-page printable planner built for Grant County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.