When to plant Yam in Walton County, FL
Aim to plant Yam in Walton County on or after March 14; the window stays open through April 4. Walton County's 246-day frost-free season gives you enough for a full main crop and a short fall succession.
When to Plant Yam in Walton 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.
Walton County, Florida is in USDA Zone 9a. The average last spring frost is March 14 and the first fall frost is November 15, giving you a growing season of approximately 246 days.
At an elevation of 200 feet, Walton County receives approximately 52.8 inches of rainfall annually with predominantly sand soil. Summer highs average 95°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.
Walton County Soil Profile
Soil Type
Sand
Soil pH
4.8-6
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 | — | 2.1" | 0" | ❄️ Dormant |
| Feb | — | 2.8" | 0" | ❄️ Dormant |
| Mar | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Apr | 4.3" | 2.6" | 1.7" | 💧 Light watering |
| May | 4.3" | 3.5" | 0.8" | 💧 Light watering |
| Jun | 4.3" | 7.5" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 8.1" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 7.8" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 6.7" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 4.2" | 0.1" | 💧 Light watering |
| Nov | 4.3" | 2.1" | 2.2" | 🚿 Regular watering |
| Dec | — | 2.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Walton County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Yam Planting Timeline — Walton County, FL
Yam Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 31 | Jan 31 – Feb 14 |
| Transplant Outdoors | March 21 | Mar 21 – Apr 4 |
| Direct Sow | March 14 | Mar 14 – Apr 4 |
| Harvest | September 19 | Sep 19 – Jan 16 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors Harvest |
| February | Start Indoors |
| March | Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | — |
| July | — |
| August | — |
| September | Harvest |
| October | Harvest |
| November | Harvest |
| December | 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 9a
📆 Growing Season
246 days in Walton County
Growing Tips for Walton 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 Walton County, FL?
Walton County is in Zone 9a with an average last frost of March 14. Plan your Yam planting based on this frost date — see the calendar above for exact timing.
What planting zone is Walton County, FL?
Walton County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 14 and first fall frost is November 15.
When should I plant Yam in Walton County, FL?
In Walton County, FL, plant Yam after the last frost (around March 14) and before the first frost (around November 15). Best results when soil holds above 50°F.
What growing zone is Walton County, FL for Yam?
Walton County sits in USDA Zone 9a. Yam grows reliably in zones 9a through 12b, so it's a good fit here.
Can Yam grow in Walton County's climate?
Yes — Yam grows well in Walton County's temperate climate. Walton County averages a 246-day frost-free season, with last frost around March 14 and first frost around November 15.
Your Walton County Garden Planner — Free
A 22-page printable planner built for Walton County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.