When to plant Tomatoes in Bremer County, IA
Bremer County gardeners should plant Tomatoes between May 7 and May 28 in spring. With Bremer County's Zone 5a climate (last frost April 30), Tomatoes needs 60–85 days to mature — plant by July 14 for a full harvest.
When to Plant Tomatoes in Bremer County, IA
Tomatoes are the most popular home garden crop, available in thousands of varieties from tiny cherries to massive beefsteaks. They are warm-season plants needing full sun.
Bremer County, Iowa is in USDA Zone 5a. The average last spring frost is April 30 and the first fall frost is October 7, giving you a growing season of approximately 160 days.
At an elevation of 913 feet, Bremer County receives approximately 33.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Tomatoes to ensure they mature before fall.
Bremer County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
How Much Tomatoes to Grow
For a family of 4, plant approximately 12 tomatoes plants in about 24 sq ft. In Bremer County's 160-day season, you'll have plenty of time for a full harvest. Plan your garden layout →
Tomatoes Planting Timeline — Bremer County, IA
Tomatoes Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 5 | Mar 5 – Mar 19 |
| Transplant Outdoors | May 14 | May 14 – May 28 |
| Direct Sow | May 7 | May 7 – May 28 |
| Harvest | July 16 | Jul 16 – Sep 24 |
Plant 0.5" deep · 24" apart · Rows 36" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | — |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
60–85 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 5a
📆 Growing Season
160 days in Bremer County
Growing Tips for Bremer County
Start seeds indoors 6-8 weeks before last frost. Bury transplants deep to encourage rooting along the stem. Provide consistent moisture to prevent blossom end rot and cracking.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Isolate 25 ft between varieties for purity. Use open-pollinated varieties for true-to-type seeds.
Tomatoes in Other Locations
Frequently Asked Questions
When should I plant Tomatoes in Bremer County, IA?
Bremer County is in Zone 5a with an average last frost of April 30. Plan your Tomatoes planting based on this frost date — see the calendar above for exact timing.
What planting zone is Bremer County, IA?
Bremer County, Iowa is in USDA Hardiness Zone 5a. The average last spring frost is April 30 and first fall frost is October 7.
When should I plant Tomatoes in Bremer County, IA?
In Bremer County, IA, plant Tomatoes after the last frost (around April 30) and before the first frost (around October 7). Best results when soil holds above 50°F.
What growing zone is Bremer County, IA for Tomatoes?
Bremer County sits in USDA Zone 5a. Tomatoes grows reliably in zones 3a through 11b, so it's a good fit here.
Can Tomatoes grow in Bremer County's climate?
Yes — Tomatoes grows well in Bremer County's temperate climate. Bremer County averages a 160-day frost-free season, with last frost around April 30 and first frost around October 7.
Your Bremer County Garden Planner — Free
A 22-page printable planner built for Bremer County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.