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When to Plant Tatsoi in Monroe County, FL

Monroe County, Florida Zone 11b May

May to-do list for Monroe County, Florida

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Monroe County, Florida.

Avg. last frost January 22
Soil temp (4") 81°F
Watering Moderate
Pest pressure High
Daylight 13.2 hrs

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Tatsoi is a compact Asian green forming beautiful rosettes of dark, spoon-shaped leaves with a mild mustard flavor. It is extremely cold-hardy and versatile.

Monroe County, Florida is in USDA Zone 11b. The average last spring frost is January 22 and the first fall frost is April 15, giving you a growing season of approximately 83 days.

At an elevation of 169 feet, Monroe County receives approximately 55.6 inches of rainfall annually with predominantly sand soil. Summer highs average 93°F, providing good warmth for Tatsoi during the growing season. Sandy soil warms quickly in spring — great for early planting — but Tatsoi will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Tatsoi root diseases.

Monroe County, FL (Zone 11b) Very short season
83 days
Last Spring Frost January 22
83 growing days
First Fall Frost April 15
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Monroe County Soil Profile

Soil Type

Sand

Soil pH

4.8-5.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (201 days to spare)
Start indoors: Dec 20 Transplant: Jan 17 🍅 Harvest: Feb 21 – Mar 28
Recommended (50%) ✓ Fits season (196 days to spare)
Start indoors: Dec 25 Transplant: Jan 22 🍅 Harvest: Feb 26 – Apr 2
Safe Start (90%) ✓ Fits season (143 days to spare)
Start indoors: Feb 16 Transplant: Mar 16 🍅 Harvest: Apr 20 – May 25

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 Monroe County

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

Soil pH

Your soil pH (4.8–5.7) is more acidic than Tatsoi prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Tatsoi.

Organic Matter

Organic matter is low (1.3%). Add 2-3 inches of compost before planting Tatsoi.

How to Plant Tatsoi

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
1.0″/week
Rainfall provides
0.6″/week
You supply
0.7″/week
Watering frequency 1-2 times/week
Season total 2,145 gal / 100 sq ft

Monthly Watering Guide for Tatsoi

Tatsoi needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Tatsoi Needs Rainfall You Supplement Action
Jan 4.3" 2.3" 2" 💧 Light watering
Feb 4.3" 2.7" 1.6" 💧 Light watering
Mar 4.3" 3.8" 0.5" 💧 Light watering
Apr 4.3" 2.5" 1.8" 💧 Light watering
May 4.3" 3.2" 1.1" 💧 Light watering
Jun 4.3" 7.1" 0" ✅ Rainfall sufficient
Jul 4.3" 8.2" 0" ✅ Rainfall sufficient
Aug 4.3" 8.7" 0" ✅ Rainfall sufficient
Sep 4.3" 7.7" 0" ✅ Rainfall sufficient
Oct 4.3" 4.8" 0" ✅ Rainfall sufficient
Nov 2.2" 0" ❄️ Dormant
Dec 2.5" 0" ❄️ Dormant

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

Tatsoi 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.

Tatsoi needs ~839 GDD — county provides 7,208 GDD Excellent fit

Tatsoi Planting Timeline — Monroe County, FL

Tatsoi Planting Calendar

Activity When Date Range
Start Indoors December 25 Dec 25 – Jan 8
Transplant Outdoors January 22 Jan 22 – Feb 5
Direct Sow January 1 Jan 1 – Jan 22
Harvest February 26 Feb 26 – Apr 2
Fall Sowing February 18 Feb 18 – Mar 4

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

35–50 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 11b

📆 Growing Season

83 days in Monroe County

Growing Tips for Tatsoi in Monroe County

Direct sow Tatsoi outdoors after January 22 in Monroe County when soil has warmed and frost danger has passed.

Sandy soil in Monroe County dries quickly — mulch Tatsoi 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 Monroe County allows multiple plantings of Tatsoi. Sow every 17.0 days for continuous harvest.

Common pests for Tatsoi 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 spring or fall. Tatsoi tolerates frost down to 15F. Harvest outer leaves or cut whole rosettes. Excellent in salads, stir-fries, or lightly wilted.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Tatsoi in Monroe County, FL?

Monroe County is in Zone 11b with an average last frost of January 22. Plan your Tatsoi planting based on this frost date — see the calendar above for exact timing.

What planting zone is Monroe County, FL?

Monroe County, Florida is in USDA Hardiness Zone 11b. The average last spring frost is January 22 and first fall frost is .

🌱

Your Monroe County Garden Planner — Free

A 24-page printable planner built for Monroe County (Zone 11b). 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 Monroe 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.