When to Plant Acorn Squash in Todd County, SD
Top priorities for Todd County, South Dakota gardeners in May
May is a pivotal month for Todd County, South Dakota gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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Harden off and plant acorn squash
Bring a watering can to the bed. Each transplant gets a drink the moment it's in the ground, not ten minutes later.
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Outdoor sowing time: acorn squash
These tolerate cool soil, so you're not gambling by sowing now.
June will be here before you know it — start on
- Starting indoors: acorn squash
Acorn squash is a small winter squash with dark green, ribbed skin and mildly sweet orange flesh. It is perfect for stuffing and roasting as individual servings.
Todd County, South Dakota is in USDA Zone 5a. The average last spring frost is May 6 and the first fall frost is October 6, giving you a growing season of approximately 153 days.
At an elevation of 1,071 feet, Todd County receives approximately 28 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Acorn Squash to ensure they mature before fall.
Todd County Soil Profile
Soil Type
Loam
Soil pH
6.4-7.4
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.
Soil Compatibility in Todd County
How your county's soil matches Acorn Squash's growing requirements.
Soil pH
Your soil pH (6.4–7.4) overlaps with Acorn Squash's range (5.5–7.0), though not a perfect match.
Soil Texture
The loam soil in Todd County is excellent for Acorn Squash — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Acorn Squash.
Organic Matter
Organic matter is moderate (3.8%). Annual compost additions will help Acorn Squash.
How to Plant Acorn Squash
Succession Planting Acorn Squash
Sow every 9.1 weeks. Last sowing by Jun 28 to harvest before frost.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Acorn Squash
Acorn Squash needs approximately 1.1 inches of water per week (4.8" per month). Here's how your county's rainfall compares month by month.
| Month | Acorn Squash Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.8" | 0" | ❄️ Dormant |
| Feb | — | 1.8" | 0" | ❄️ Dormant |
| Mar | — | 2.4" | 0" | ❄️ Dormant |
| Apr | — | 2.6" | 0" | ❄️ Dormant |
| May | 4.8" | 3.6" | 1.2" | 💧 Light watering |
| Jun | 4.8" | 2.2" | 2.6" | 🚿 Regular watering |
| Jul | 4.8" | 2.7" | 2.1" | 💧 Light watering |
| Aug | 4.8" | 2.8" | 2" | 💧 Light watering |
| Sep | 4.8" | 2.3" | 2.5" | 🚿 Regular watering |
| Oct | 4.8" | 2.1" | 2.7" | 🚿 Regular watering |
| Nov | — | 2" | 0" | ❄️ Dormant |
| Dec | — | 1.5" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Todd County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Acorn Squash Heat Requirements (GDD)
What are Growing Degree Days (GDD)?
Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.
Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.
Acorn Squash Planting Timeline — Todd County, SD
Acorn Squash Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 1 | Apr 1 – Apr 15 |
| Transplant Outdoors | May 20 | May 20 – Jun 3 |
| Direct Sow | May 13 | May 13 – Jun 3 |
| Harvest | August 12 | Aug 12 – Sep 16 |
Plant 1" deep · 30" apart · Rows 42" 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 | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1.1"/week · 2-3 times/week
📅 Days to Maturity
80–100 days
🧪 Soil pH
Needs 5.5–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 5a
📆 Growing Season
153 days in Todd County
Growing Tips for Acorn Squash in Todd County
Direct sow Acorn Squash outdoors after May 06 in Todd County when soil has warmed and frost danger has passed.
Common pests for Acorn Squash in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct sow after last frost. Harvest when the ground spot turns orange and the skin is hard. Acorn squash has a shorter storage life than butternut, lasting about 2 months.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Acorn Squash in Other Locations
Frequently Asked Questions
When should I plant Acorn Squash in Todd County, SD?
Todd County is in Zone 5a with an average last frost of May 6. Plan your Acorn Squash planting based on this frost date — see the calendar above for exact timing.
What planting zone is Todd County, SD?
Todd County, South Dakota is in USDA Hardiness Zone 5a. The average last spring frost is May 6 and first fall frost is October 6.
Your Todd County Garden Planner — Free
A 24-page printable planner built for Todd 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.