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When to Plant Mustard Greens in Hendry County, FL

Hendry County, Florida Zone 10a May

Top priorities for Hendry County, Florida gardeners in May

Your garden in Hendry County, Florida is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost January 14
Soil temp (4") 80°F
Watering Moderate
Pest pressure High
Daylight 13.3 hrs

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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.

Hendry County, Florida is in USDA Zone 10a. The average last spring frost is January 14 and the first fall frost is April 15, giving you a growing season of approximately 91 days.

At an elevation of 403 feet, Hendry County receives approximately 55.9 inches of rainfall annually with predominantly sand soil. Summer highs average 89°F, providing good warmth for Mustard Greens during the growing season. 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.

Hendry County, FL (Zone 10a) Very short season
91 days
Last Spring Frost January 14
91 growing days
First Fall Frost April 15

Hendry County Soil Profile

Soil Type

Sand

Soil pH

5-5.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (180 days to spare)
Start indoors: Dec 13 Transplant: Jan 10 🍅 Harvest: Feb 14 – Apr 18
Recommended (50%) ✓ Fits season (176 days to spare)
Start indoors: Dec 17 Transplant: Jan 14 🍅 Harvest: Feb 18 – Apr 22
Safe Start (90%) ✓ Fits season (150 days to spare)
Start indoors: Jan 12 Transplant: Feb 9 🍅 Harvest: Mar 16 – May 18

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 Hendry County

How your county's soil matches Mustard Greens's growing requirements.

Soil pH

Your soil pH (5.0–5.8) is more acidic than Mustard Greens prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Hendry 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 (1.7%). Add 2-3 inches of compost before planting Mustard Greens.

How to Plant Mustard Greens

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.6″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 1,040 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 3" 2.6" 0.4" 💧 Light watering
Feb 3" 2.7" 0.3" 💧 Light watering
Mar 3" 3.7" 0" ✅ Rainfall sufficient
Apr 3" 2.6" 0.4" 💧 Light watering
May 3" 3.6" 0" ✅ Rainfall sufficient
Jun 3" 7.6" 0" ✅ Rainfall sufficient
Jul 3" 8" 0" ✅ Rainfall sufficient
Aug 3" 9.4" 0" ✅ Rainfall sufficient
Sep 3" 6.7" 0" ✅ Rainfall sufficient
Oct 3" 4.7" 0" ✅ Rainfall sufficient
Nov 2.2" 0" ❄️ Dormant
Dec 2" 0" ❄️ Dormant

Water needs are for active growing months only (Jan–Oct in Hendry 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 needs ~670 GDD — county provides 6,113 GDD Excellent fit

Mustard Greens Planting Timeline — Hendry County, FL

Mustard Greens Planting Calendar

Activity When Date Range
Start Indoors December 17 Dec 17 – Dec 31
Transplant Outdoors January 14 Jan 14 – Jan 28
Direct Sow December 24 Dec 24 – Jan 14
Harvest February 18 Feb 18 – Apr 22
Fall Sowing February 18 Feb 18 – Mar 4

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · 1-2 times/week

📅 Days to Maturity

30–50 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

91 days in Hendry County

Growing Tips for Mustard Greens in Hendry County

Direct sow Mustard Greens outdoors after January 14 in Hendry County when soil has warmed and frost danger has passed.

Sandy soil in Hendry 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.

Your generous 365.0-day season in Hendry 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

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Mustard Greens in Hendry County, FL?

Hendry County is in Zone 10a with an average last frost of January 14. Plan your Mustard Greens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Hendry County, FL?

Hendry County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 14 and first fall frost is .

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Your Hendry County Garden Planner — Free

A 24-page printable planner built for Hendry County (Zone 10a). 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 Hendry 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.