When to plant Eggplant in Franklin County, MA
Franklin County gardeners should plant Eggplant between May 16 and June 6 in spring. With Franklin County's Zone 5b climate (last frost May 9), Eggplant needs 65–85 days to mature — plant by July 18 for a full harvest.
When to Plant Eggplant in Franklin County, MA
Eggplant is a heat-loving solanaceous crop that produces glossy fruits in purple, white, or striped varieties. It requires long, warm growing seasons for best production.
Franklin County, Massachusetts is in USDA Zone 5b. The average last spring frost is May 9 and the first fall frost is October 11, giving you a growing season of approximately 155 days.
At an elevation of 1,016 feet, Franklin County receives approximately 42.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Eggplant during the growing season.
Franklin County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
How Much Eggplant to Grow
For a family of 4, plant approximately 8 eggplant plants in about 16 sq ft. In Franklin County's 155-day season, you'll have plenty of time for a full harvest. Plan your garden layout →
Eggplant Planting Timeline — Franklin County, MA
Eggplant Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 28 | Feb 28 – Mar 14 |
| Transplant Outdoors | May 23 | May 23 – Jun 6 |
| Direct Sow | May 16 | May 16 – Jun 6 |
| Harvest | August 1 | Aug 1 – Oct 3 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors |
| April | — |
| May | Transplant Outdoors Direct Sow |
| June | Transplant Outdoors Direct Sow |
| July | — |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
65–85 days
🧪 Soil pH
Needs 5.5–7 · Your soil: N/A
🗺️ USDA Zone
Zone 5b
📆 Growing Season
155 days in Franklin County
Growing Tips for Franklin County
Start seeds indoors 8-10 weeks before last frost. Transplant only after nighttime temperatures stay above 55F. Mulch to retain moisture and warmth around roots.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Eggplant in Other Locations
Frequently Asked Questions
When should I plant Eggplant in Franklin County, MA?
Franklin County is in Zone 5b with an average last frost of May 9. Plan your Eggplant planting based on this frost date — see the calendar above for exact timing.
What planting zone is Franklin County, MA?
Franklin County, Massachusetts is in USDA Hardiness Zone 5b. The average last spring frost is May 9 and first fall frost is October 11.
When should I plant Eggplant in Franklin County, MA?
In Franklin County, MA, plant Eggplant after the last frost (around May 9) and before the first frost (around October 11). Best results when soil holds above 50°F.
What growing zone is Franklin County, MA for Eggplant?
Franklin County sits in USDA Zone 5b. Eggplant grows reliably in zones 5a through 11b, so it's a good fit here.
Can Eggplant grow in Franklin County's climate?
Yes — Eggplant grows well in Franklin County's temperate climate. Franklin County averages a 155-day frost-free season, with last frost around May 9 and first frost around October 11.
Your Franklin County Garden Planner — Free
A 22-page printable planner built for Franklin County (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.