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When to Plant Yam in Broward County, FL

Broward County, Florida Zone 11a May

This month in Broward County, Florida

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Soil temp (4") 81°F
Watering Low
Pest pressure High
Daylight 13.3 hrs

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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.

Broward County, Florida is in USDA Zone 11a. The average last spring frost is January 1 and the first fall frost is December 31, giving you a growing season of approximately 364 days.

At an elevation of 209 feet, Broward County receives approximately 60.7 inches of rainfall annually with predominantly sand soil. Summer highs average 93°F, providing good warmth for Yam during the growing season. 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.

Broward County, FL (Zone 11a) Year-round
364 days
Last Spring Frost January 1
364 growing days
First Fall Frost December 31

Broward County Soil Profile

Soil Type

Sand

Soil pH

5.1-6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (191 days to spare)
Start indoors: Mar 4 Transplant: Apr 22 🍅 Harvest: Oct 21 – Apr 7
Recommended (50%) ✓ Fits season (191 days to spare)
Start indoors: Mar 4 Transplant: Apr 22 🍅 Harvest: Oct 21 – Apr 7
Safe Start (90%) ✓ Fits season (191 days to spare)
Start indoors: Mar 4 Transplant: Apr 22 🍅 Harvest: Oct 21 – Apr 7

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 Broward County

How your county's soil matches Yam's growing requirements.

Soil pH

Your soil pH (5.1–6.0) overlaps with Yam's range (5.5–6.5), though not a perfect match.

Soil Texture

Sandy soil in Broward County warms quickly in spring but drains fast. Yam will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Yam.

Organic Matter

Organic matter is low (1.5%). Add 2-3 inches of compost before planting Yam.

How to Plant Yam

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,954 gal / 100 sq ft

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 4.3" 3" 1.3" 💧 Light watering
Feb 4.3" 2.8" 1.5" 💧 Light watering
Mar 4.3" 3.3" 1" 💧 Light watering
Apr 4.3" 2.5" 1.8" 💧 Light watering
May 4.3" 4.1" 0.2" 💧 Light watering
Jun 4.3" 8.7" 0" ✅ Rainfall sufficient
Jul 4.3" 10.1" 0" ✅ Rainfall sufficient
Aug 4.3" 9.1" 0" ✅ Rainfall sufficient
Sep 4.3" 7.9" 0" ✅ Rainfall sufficient
Oct 4.3" 4.7" 0" ✅ Rainfall sufficient
Nov 4.3" 2.1" 2.2" 🚿 Regular watering
Dec 4.3" 2.2" 2.1" 💧 Light watering

Water needs are for active growing months only (Jan–Dec in Broward County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Yam 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.

Yam needs ~5,036 GDD — county provides 7,208 GDD Excellent fit

Yam Planting Timeline — Broward County, FL

Yam Planting Calendar

Activity When Date Range
Start Indoors November 20 Nov 20 – Dec 4
Transplant Outdoors January 8 Jan 8 – Jan 22
Direct Sow January 1 Jan 1 – Jan 22
Harvest July 9 Jul 9 – Dec 24

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Transplant Outdoors Direct Sow
February
March
April
May
June
July Harvest
August Harvest
September Harvest
October Harvest
November Start Indoors Harvest
December Start Indoors Harvest

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

180–330 days

🧪 Soil pH

Needs 5.5–6.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 11a

📆 Growing Season

364 days in Broward County

Growing Tips for Yam in Broward County

Sandy soil in Broward County dries quickly — mulch Yam with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

General growing tips

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 →

Frequently Asked Questions

When should I plant Yam in Broward County, FL?

Broward County is in Zone 11a with an average last frost of January 1. Plan your Yam planting based on this frost date — see the calendar above for exact timing.

What planting zone is Broward County, FL?

Broward County, Florida is in USDA Hardiness Zone 11a. The average last spring frost is January 1 and first fall frost is December 31.

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Your Broward County Garden Planner — Free

A 24-page printable planner built for Broward County (Zone 11a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Broward County, FL. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.