When to plant Yam in Sumter County, FL
Aim to plant Yam in Sumter County on or after February 6; the window stays open through February 27. Sumter County's 304-day frost-free season gives you plenty of room for a spring and fall cycle.
When to Plant Yam in Sumter County, FL
True yams are tropical tubers distinct from sweet potatoes, producing large starchy roots that can weigh several pounds. They are a staple food in tropical regions worldwide.
Sumter County, Florida is in USDA Zone 9b. The average last spring frost is February 6 and the first fall frost is December 6, giving you a growing season of approximately 303 days.
At an elevation of 463 feet, Sumter County receives approximately 60.9 inches of rainfall annually with predominantly sand soil. Summer highs average 96°F, so Yam may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Yam will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Yam root diseases.
Sumter County Soil Profile
Soil Type
Sand
Soil pH
5-6.1
Drainage
Well Drained
Monthly Watering Guide for Yam
Yam needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Yam Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 3.2" | 0" | ❄️ Dormant |
| Feb | 4.3" | 3.3" | 1" | 💧 Light watering |
| Mar | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Apr | 4.3" | 2.7" | 1.6" | 💧 Light watering |
| May | 4.3" | 4.3" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 8" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 8.7" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 8.5" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 7.6" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 6.1" | 0" | ✅ Rainfall sufficient |
| Nov | 4.3" | 2.6" | 1.7" | 💧 Light watering |
| Dec | 4.3" | 2.5" | 1.8" | 💧 Light watering |
Water needs are for active growing months only (Feb–Dec in Sumter County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Yam Planting Timeline — Sumter County, FL
Yam Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | December 26 | Dec 26 – Jan 9 |
| Transplant Outdoors | February 13 | Feb 13 – Feb 27 |
| Direct Sow | February 6 | Feb 6 – Feb 27 |
| Harvest | August 14 | Aug 14 – Dec 11 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Transplant Outdoors Direct Sow |
| March | — |
| April | — |
| May | — |
| June | — |
| July | — |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | Harvest |
| December | Start Indoors Harvest |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
180–330 days
🧪 Soil pH
Needs 5.5–6.5 · Your soil: N/A
🗺️ USDA Zone
Zone 9b
📆 Growing Season
303 days in Sumter County
Growing Tips for Sumter County
Plant tuber pieces in mounds of loose, rich soil. Provide sturdy trellising for climbing vines. Yams require a long, warm growing season of 8-11 months. Harvest when vines die back.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Yam in Other Locations
Frequently Asked Questions
When should I plant Yam in Sumter County, FL?
Sumter County is in Zone 9b with an average last frost of February 6. Plan your Yam planting based on this frost date — see the calendar above for exact timing.
What planting zone is Sumter County, FL?
Sumter County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is February 6 and first fall frost is December 6.
When should I plant Yam in Sumter County, FL?
In Sumter County, FL, plant Yam after the last frost (around February 6) and before the first frost (around December 6). Best results when soil holds above 50°F.
What growing zone is Sumter County, FL for Yam?
Sumter County sits in USDA Zone 9b. Yam grows reliably in zones 9a through 12b, so it's a good fit here.
Can Yam grow in Sumter County's climate?
Yes — Yam grows well in Sumter County's temperate climate. Sumter County averages a 304-day frost-free season, with last frost around February 6 and first frost around December 6.
Your Sumter County Garden Planner — Free
A 22-page printable planner built for Sumter County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.