When to plant Eggplant in Bannock County, ID
Bannock County's 124-day season only supports one Eggplant planting per year. Sow between May 30 and June 20 for the best chance at full maturity before September 24.
When to Plant Eggplant in Bannock County, ID
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.
Bannock County, Idaho is in USDA Zone 6a. The average last spring frost is May 23 and the first fall frost is September 24, giving you a growing season of approximately 124 days.
At an elevation of 5,637 feet, Bannock County receives approximately 13.1 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Eggplant to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Eggplant successfully. Mulch heavily to conserve soil moisture.
Bannock County Soil Profile
Soil Type
Loam
Soil pH
6.7-8.1
Drainage
Well Drained
How Much Eggplant to Grow
For a family of 4, plant approximately 8 eggplant plants in about 16 sq ft. In Bannock County's 124-day season, you'll have plenty of time for a full harvest. Plan your garden layout →
Monthly Watering Guide for Eggplant
Eggplant needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Eggplant Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1" | 0" | ❄️ Dormant |
| Feb | — | 0.8" | 0" | ❄️ Dormant |
| Mar | — | 1.1" | 0" | ❄️ Dormant |
| Apr | — | 1.4" | 0" | ❄️ Dormant |
| May | 4.3" | 1.5" | 2.8" | 🚿 Regular watering |
| Jun | 4.3" | 0.9" | 3.4" | 🚿 Regular watering |
| Jul | 4.3" | 1.1" | 3.2" | 🚿 Regular watering |
| Aug | 4.3" | 1.4" | 2.9" | 🚿 Regular watering |
| Sep | 4.3" | 1" | 3.3" | 🚿 Regular watering |
| Oct | — | 1" | 0" | ❄️ Dormant |
| Nov | — | 1" | 0" | ❄️ Dormant |
| Dec | — | 0.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Sep in Bannock County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Eggplant Planting Timeline — Bannock County, ID
Eggplant Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 14 | Mar 14 – Mar 28 |
| Transplant Outdoors | June 6 | Jun 6 – Jun 20 |
| Direct Sow | May 30 | May 30 – Jun 20 |
| Harvest | August 15 | Aug 15 – Oct 17 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | — |
| May | 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 6a
📆 Growing Season
124 days in Bannock County
Growing Tips for Bannock 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 Bannock County, ID?
Bannock County is in Zone 6a with an average last frost of May 23. Plan your Eggplant planting based on this frost date — see the calendar above for exact timing.
What planting zone is Bannock County, ID?
Bannock County, Idaho is in USDA Hardiness Zone 6a. The average last spring frost is May 23 and first fall frost is September 24.
When should I plant Eggplant in Bannock County, ID?
In Bannock County, ID, plant Eggplant after the last frost (around May 23) and before the first frost (around September 24). Best results when soil holds above 50°F.
What growing zone is Bannock County, ID for Eggplant?
Bannock County sits in USDA Zone 6a. Eggplant grows reliably in zones 5a through 11b, so it's a good fit here.
Can Eggplant grow in Bannock County's climate?
Yes — Eggplant grows well in Bannock County's temperate climate. Bannock County averages a 124-day frost-free season, with last frost around May 23 and first frost around September 24.
Your Bannock County Garden Planner — Free
A 22-page printable planner built for Bannock 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.