When to plant Sunflower in Todd County, MN
Plant Sunflower in Todd County after May 4; the prime window is May 18–June 8.
When to Plant Sunflower in Todd County, MN
Sunflower (Helianthus annuus) is a fast-growing North American native annual famous for its towering stems and brilliant yellow heads. It thrives in full sun and heat, producing large, pollen-rich blooms that attract bees, butterflies, and seed-eating birds. Varieties range from 18-inch dwarfs to 12-foot giants and nearly every color except blue.
Todd County, Minnesota is in USDA Zone 4a. The average last spring frost is May 4 and the first fall frost is October 4, giving you a growing season of approximately 153 days.
At an elevation of 987 feet, Todd County receives approximately 33.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 81°F, so choose short-season varieties of Sunflower to ensure they mature before fall.
Todd County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Sunflower Planting Timeline — Todd County, MN
Sunflower Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 13 | Apr 13 – Apr 27 |
| Transplant Outdoors | May 18 | May 18 – Jun 1 |
| Direct Sow | May 18 | May 18 – Jun 8 |
| Bloom | August 10 | Aug 10 – Oct 5 |
Plant 1" deep · 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow |
| June | Transplant Outdoors Direct Sow |
| July | — |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
70–100 days
🧪 Soil pH
Needs 6–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 4a
📆 Growing Season
153 days in Todd County
Growing Tips for Todd County
Direct-sow 1 inch deep after last frost; germination takes 7-14 days at 65-75°F soil. Sunflowers dislike root disturbance so direct sowing is strongly preferred over transplanting. Plant in succession every 2 weeks for extended bloom. Stake tall varieties. Avoid overwatering — they tolerate drought once established. Birds will self-deadhead seed heads; leave them up through fall for wildlife.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Sunflower in Other Locations
Frequently Asked Questions
When should I plant Sunflower in Todd County, MN?
Todd County is in Zone 4a with an average last frost of May 4. Plan your Sunflower planting based on this frost date — see the calendar above for exact timing.
What planting zone is Todd County, MN?
Todd County, Minnesota is in USDA Hardiness Zone 4a. The average last spring frost is May 4 and first fall frost is October 4.
When should I plant Sunflower in Todd County, MN?
In Todd County, MN, plant Sunflower after the last frost (around May 4) and before the first frost (around October 4). Best results when soil holds above 50°F.
What growing zone is Todd County, MN for Sunflower?
Todd County sits in USDA Zone 4a. Sunflower grows reliably in zones 2a through 11b, so it's a good fit here.
Can Sunflower grow in Todd County's climate?
Yes — Sunflower grows well in Todd County's temperate climate. Todd County averages a 153-day frost-free season, with last frost around May 4 and first frost around October 4.
Your Todd County Garden Planner — Free
A 22-page printable planner built for Todd County (Zone 4a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.