When to Plant Celery in Hamlin County, SD
Celery is a marshland plant that requires consistent moisture and cool temperatures to produce crisp, flavorful stalks. It is a rewarding but demanding garden crop.
Hamlin County, South Dakota is in USDA Zone 4a. The average last spring frost is May 6 and the first fall frost is October 3, giving you a growing season of approximately 150 days.
At an elevation of 729 feet, Hamlin County receives approximately 24.8 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Celery to ensure they mature before fall.
Hamlin County Soil Profile
Soil Type
Loam
Soil pH
6.7-7.7
Drainage
Well Drained
Plant Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Celery Planting Timeline — Hamlin County, SD
Celery Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 25 | Mar 25 – Apr 8 |
| Transplant Outdoors | May 6 | May 6 – May 20 |
| Direct Sow | April 29 | Apr 29 – May 20 |
| Fall Sowing | July 11 | Jul 11 – Jul 25 |
| Harvest | July 29 | Jul 29 – Sep 23 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Fall Sowing Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
High — keep soil consistently moist
Days to Maturity
80–120 days
Soil pH
6 – 7
USDA Zone
Zone 4a
Growing Season
150 days
Growing Tips for Hamlin County
Start seeds indoors 10-12 weeks before last frost. Keep soil consistently moist and never let it dry out. Blanch stalks by mounding soil or using collars for milder flavor.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Celery in Other Locations
Frequently Asked Questions
When should I plant Celery in Hamlin County, SD?
Hamlin County is in Zone 4a with an average last frost of May 6. Plan your Celery planting based on this frost date — see the calendar above for exact timing.
What planting zone is Hamlin County, SD?
Hamlin County, South Dakota is in USDA Hardiness Zone 4a. The average last spring frost is May 6 and first fall frost is October 3.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Hamlin County gardeners in Zone 4a organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.