When to Plant Mustard Greens in Franklin County, FL
May to-do list for Franklin County, Florida
Your garden in Franklin County, Florida is working on a schedule, even when you're not. Here's where you should be this May.
-
Basket week: mustard greens
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
Looking ahead to June
- First harvests: mustard greens
Mustard greens are fast-growing brassicas with a spicy, peppery kick. They come in green, red, and purple varieties and are excellent cooked or in salads.
Franklin County, Florida is in USDA Zone 9a. The average last spring frost is February 25 and the first fall frost is November 28, giving you a growing season of approximately 276 days.
At an elevation of 487 feet, Franklin County receives approximately 59.9 inches of rainfall annually with predominantly sand soil. Summer highs average 96°F, so Mustard Greens may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Mustard Greens will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mustard Greens root diseases.
Franklin County Soil Profile
Soil Type
Sand
Soil pH
4.9-6
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 Franklin County
How your county's soil matches Mustard Greens's growing requirements.
Soil pH
Your soil pH (4.9–6.0) is more acidic than Mustard Greens prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
Sandy soil in Franklin County warms quickly in spring but drains fast. Mustard Greens will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Mustard Greens.
Organic Matter
Organic matter is low (1.6%). Add 2-3 inches of compost before planting Mustard Greens.
How to Plant Mustard Greens
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Mustard Greens
Sow every 3.4 weeks. Last sowing by Oct 09 to harvest before frost.
For a dedicated fall crop, sow by Oct 03.
Plant Water Budget
Monthly Watering Guide for Mustard Greens
Mustard Greens needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.
| Month | Mustard Greens Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2.6" | 0" | ❄️ Dormant |
| Feb | 3" | 2.8" | 0.2" | 💧 Light watering |
| Mar | 3" | 3.2" | 0" | ✅ Rainfall sufficient |
| Apr | 3" | 2.6" | 0.4" | 💧 Light watering |
| May | 3" | 4" | 0" | ✅ Rainfall sufficient |
| Jun | 3" | 7.6" | 0" | ✅ Rainfall sufficient |
| Jul | 3" | 9.2" | 0" | ✅ Rainfall sufficient |
| Aug | 3" | 10" | 0" | ✅ Rainfall sufficient |
| Sep | 3" | 7.4" | 0" | ✅ Rainfall sufficient |
| Oct | 3" | 4.9" | 0" | ✅ Rainfall sufficient |
| Nov | 3" | 2.9" | 0.1" | 💧 Light watering |
| Dec | — | 2.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Feb–Nov in Franklin County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Mustard Greens 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.
Mustard Greens Planting Timeline — Franklin County, FL
Mustard Greens Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 28 | Jan 28 – Feb 11 |
| Transplant Outdoors | February 25 | Feb 25 – Mar 11 |
| Direct Sow | February 4 | Feb 4 – Feb 25 |
| Harvest | April 1 | Apr 1 – Jun 3 |
| Fall Sowing | October 3 | Oct 3 – Oct 17 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors Transplant Outdoors Direct Sow |
| March | Transplant Outdoors |
| April | Harvest |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
0.7"/week · Only during dry spells
📅 Days to Maturity
30–50 days
🧪 Soil pH
Needs 6–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9a
📆 Growing Season
276 days in Franklin County
Growing Tips for Mustard Greens in Franklin County
Direct sow Mustard Greens outdoors after February 25 in Franklin County when soil has warmed and frost danger has passed.
Sandy soil in Franklin County dries quickly — mulch Mustard Greens with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
With summer highs reaching 96°F in Franklin County, provide afternoon shade for Mustard Greens and water deeply in the morning.
Your generous 277.0-day season in Franklin County allows multiple plantings of Mustard Greens. Sow every 15.0 days for continuous harvest.
Common pests for Mustard Greens in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct sow in early spring or fall. Harvest young leaves for milder flavor. Plants bolt quickly in heat so grow as a cool-season crop or provide shade.
Companion Planting
Good Companions
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Check more plant combinations with our Companion Planting Checker →
Mustard Greens in Other Locations
Frequently Asked Questions
When should I plant Mustard Greens in Franklin County, FL?
Franklin County is in Zone 9a with an average last frost of February 25. Plan your Mustard Greens planting based on this frost date — see the calendar above for exact timing.
What planting zone is Franklin County, FL?
Franklin County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is February 25 and first fall frost is November 28.
Your Franklin County Garden Planner — Free
A 24-page printable planner built for Franklin 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.