When to plant Spinach in Dearborn County, IN
Dearborn County gardeners should plant Spinach between April 2 and April 23 in spring. With Dearborn County's Zone 6b climate (last frost April 16), Spinach needs 35–50 days to mature — plant by August 31 for a full harvest. A second sowing from August 11 to August 25 extends the harvest into fall.
When to Plant Spinach in Dearborn County, IN
Spinach is a nutrient-packed cool-season green that grows quickly in spring and fall. It is rich in iron, vitamins, and antioxidants and excellent raw or cooked.
Dearborn County, Indiana is in USDA Zone 6b. The average last spring frost is April 16 and the first fall frost is October 20, giving you a growing season of approximately 187 days.
At an elevation of 1,290 feet, Dearborn County receives approximately 32.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Spinach during the growing season.
Dearborn County Soil Profile
Soil Type
Silt Loam
Soil pH
5.9-7.3
Drainage
Well Drained
Monthly Watering Guide for Spinach
Spinach needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Spinach Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.3" | 0" | ❄️ Dormant |
| Feb | — | 1.5" | 0" | ❄️ Dormant |
| Mar | — | 2.1" | 0" | ❄️ Dormant |
| Apr | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| May | 4.3" | 4" | 0.3" | 💧 Light watering |
| Jun | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| Jul | 4.3" | 4.2" | 0.1" | 💧 Light watering |
| Aug | 4.3" | 3" | 1.3" | 💧 Light watering |
| Sep | 4.3" | 2.7" | 1.6" | 💧 Light watering |
| Oct | 4.3" | 2.5" | 1.8" | 💧 Light watering |
| Nov | — | 2.4" | 0" | ❄️ Dormant |
| Dec | — | 1.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Dearborn County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Spinach Planting Timeline — Dearborn County, IN
Spinach Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 12 | Mar 12 – Mar 26 |
| Transplant Outdoors | April 16 | Apr 16 – Apr 30 |
| Direct Sow | April 2 | Apr 2 – Apr 23 |
| Harvest | May 21 | May 21 – Jul 23 |
| Fall Sowing | August 11 | Aug 11 – Aug 25 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
35–50 days
🧪 Soil pH
Needs 6.5–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 6b
📆 Growing Season
187 days in Dearborn County
Growing Tips for Dearborn County
Direct sow as soon as soil can be worked in spring. Plant in partial shade for summer crops to delay bolting. Succession plant every 2 weeks for continuous harvest.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Wind pollinated — isolate 1/2 mile for purity. Easy to let bolt in heat.
Spinach in Other Locations
Frequently Asked Questions
When should I plant Spinach in Dearborn County, IN?
Dearborn County is in Zone 6b with an average last frost of April 16. Plan your Spinach planting based on this frost date — see the calendar above for exact timing.
What planting zone is Dearborn County, IN?
Dearborn County, Indiana is in USDA Hardiness Zone 6b. The average last spring frost is April 16 and first fall frost is October 20.
When should I plant Spinach in Dearborn County, IN?
In Dearborn County, IN, plant Spinach after the last frost (around April 16) and before the first frost (around October 20). Best results when soil holds above 50°F.
What growing zone is Dearborn County, IN for Spinach?
Dearborn County sits in USDA Zone 6b. Spinach grows reliably in zones 2a through 10b, so it's a good fit here.
Can Spinach grow in Dearborn County's climate?
Yes — Spinach grows well in Dearborn County's temperate climate. Dearborn County averages a 187-day frost-free season, with last frost around April 16 and first frost around October 20.
Your Dearborn County Garden Planner — Free
A 22-page printable planner built for Dearborn County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.