When to plant Garlic in Nassau County, FL
Garlic planted in Nassau County between mid-spring and late spring matures in 90–240 days — well before the December 1 first frost. A second sowing from October 20 to November 3 extends the harvest into fall.
When to Plant Garlic in Nassau County, FL
Your August gardening checklist
A quick August briefing for Nassau County, Florida gardeners — what's urgent, what's next, and what can wait.
Garlic is a pungent allium planted in fall and harvested the following summer. Hardneck varieties produce edible flower stalks (scapes) and are more cold-hardy.
Nassau County, Florida is in USDA Zone 9a. The average last spring frost is February 14 and the first fall frost is December 1, giving you a growing season of approximately 290 days.
At an elevation of 408 feet, Nassau County receives approximately 57.9 inches of rainfall annually with predominantly sand soil. Summer highs average 101°F, so Garlic may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Garlic will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Garlic root diseases.
Nassau County Soil Profile
Soil Type
Sand
Soil pH
5.2-5.8
Drainage
Well Drained
Garlic 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 Nassau County
How your county's soil matches Garlic's growing requirements.
Soil pH
Your soil pH (5.2–5.8) is more acidic than Garlic prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
Sandy soil in Nassau County warms quickly in spring but drains fast. Garlic will need more frequent watering and regular compost additions to retain nutrients.
Organic Matter
Organic matter is low (1.4%). Add 2-3 inches of compost before planting Garlic.
How to Plant Garlic
Fall planting: Sow 6 weeks before your first frost date for a fall harvest.
Garlic Water Budget
Monthly Watering Guide for Garlic
Garlic needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Garlic Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2.8" | 0" | ❄️ Dormant |
| Feb | 2.2" | 3.2" | 0" | ✅ Rainfall sufficient |
| Mar | 2.2" | 3.7" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 2.9" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.1" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 6.6" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 7.9" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 8.7" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 7.9" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 5.3" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 2.2" | 0" | ✅ Rainfall sufficient |
| Dec | 2.2" | 2.5" | 0" | ✅ Rainfall sufficient |
Water needs are for active growing months only (Feb–Dec in Nassau County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Garlic 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.
Garlic Planting Timeline — Nassau County, FL
Garlic Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Harvest | January 19 | Jan 19 – Jul 6 |
| Fall Sowing | October 20 | Oct 20 – Nov 3 |
Plant 1" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Harvest |
| February | Harvest |
| March | Harvest |
| April | Harvest |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | — |
| October | Fall Sowing |
| November | Fall Sowing |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
90–240 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9a
📆 Growing Season
290 days in Nassau County
Growing Tips for Garlic in Nassau County
Direct sow Garlic outdoors after February 14 in Nassau County when soil has warmed and frost danger has passed.
Sandy soil in Nassau County dries quickly — mulch Garlic with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
With summer highs reaching 101°F in Nassau County, provide afternoon shade for Garlic and water deeply in the morning.
Common pests for Garlic in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.
With 58" of annual rainfall in Nassau County, ensure good drainage for Garlic — excess moisture can promote root rot and fungal diseases.
General growing tips
Plant individual cloves pointed end up in fall, 6 weeks before ground freezes. Mulch heavily with straw. Harvest when lower leaves begin to brown but 5-6 green leaves remain.
Companion Planting
Good Companions
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Garlic in Other Locations
Frequently Asked Questions
When should I plant Garlic in Nassau County, FL?
Nassau County is in Zone 9a with an average last frost of February 14. Plan your Garlic planting based on this frost date — see the calendar above for exact timing.
What planting zone is Nassau County, FL?
Nassau County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is February 14 and first fall frost is December 1.
When should I plant Garlic in Nassau County, FL?
In Nassau County, FL, plant Garlic after the last frost (around February 14) and before the first frost (around December 1). Best results when soil holds above 50°F.
What growing zone is Nassau County, FL for Garlic?
Nassau County sits in USDA Zone 9a. Garlic grows reliably in zones 3a through 9b, so it's a good fit here.
Can Garlic grow in Nassau County's climate?
Yes — Garlic grows well in Nassau County's temperate climate. Nassau County averages a 291-day frost-free season, with last frost around February 14 and first frost around December 1.
Your Nassau County Garden Planner — Free
A 22-page printable planner built for Nassau 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.